Select the correct answer from each drop-down menu. steel is an alloy of . one of the main reasons steel is used more widely than iron is because it’s than iron.

Answers

Answer 1

Steel is an alloy of iron and carbon. One of the main reasons steel is used more widely than iron is that it’s stronger than iron.

Steel, unlike other forms of iron, is strengthened by the addition of carbon, making it more resistant to fracture. Additional components are possible or even expected. To prevent corrosion and oxidation, stainless steels typically contain an extra 11% chromium. Steel's low price and high tensile strength make it a popular material for many different types of construction, as well as for transportation, manufacturing, and defense. Cast iron is the primary component of steel. It can crystallize in either a body-centered cubic or a face-centered cubic form, depending on the temperature. Steel and cast iron are characterized by a wide variety of properties due to the interaction of iron's various allotropes with the alloying elements, most notably carbon.

Want to know more about steel visit the link which is given below;

https://brainly.com/question/29222140

#SPJ4


Related Questions

What is the difference between dynamic and active stretching?

Answers

Stretching that is passive, such as static stretching, is contrasted with active stretching, such as dynamic stretching. It entails motion, putting the muscles and joints through their full range of motion.

Are dynamic active stretches the same?

Active stretching – what is it? Active stretching is the process of relaxing and stretching opposing muscles without the use of external pressures, as opposed to dynamic stretching or ballistic stretching. Stretching that is active is not passive.

What are a few instances of stretching actively?

In general, an active stretch doesn't require the use of an external force. An illustration would be a side-leaning stretch with the arms overhead. It is not necessary to pull, push, hold, brace, or hold the stretch. Active stretching is a common practice in yoga, as you'll discover.

To learn more about stretching visit:

brainly.com/question/1942562

#SPJ4

A 63.0-kg sprinter starts a race with an acceleration of 3.20 m/s2. If the sprinter from the previous problem accelerates at that rate for 20.0 m, and then maintains that velocity for the remainder of the 100.0-m dash, what will be his time for the race

Answers

At his current velocity the sprinter will complete the 100.0-m dash in 28.53 s.

What is velocity?

Velocity is a vector quantity that describes the rate of change of an object's position. It is a measure of how fast an object is moving and in what direction. Velocity is measured in units of meters per second (m/s) or miles per hour (mph) and is often represented by the symbol "v".

We can use the equations of motion to calculate the time for the sprinter to complete the race.

First, we can use the equation:

v = u + at

to find the final velocity of the sprinter after accelerating for 20.0 m. Here, u is the initial velocity (which is 0 m/s since the sprinter is at rest at the start of the race), a is the acceleration of 3.20 m/s^2, and t is the time it takes for the sprinter to accelerate for 20.0 m.

v = 0 + (3.20 m/s^2)(t)

We know that the sprinter accelerates for 20.0 m, so we can use the equation:

s = ut + 1/2at^2

to find the time t:

20.0 m = (0 m/s)(t) + 1/2(3.20 m/s^2)(t^2)

t^2 = (20.0 m) * 2 / (3.20 m/s^2) = 12.5

t = sqrt(12.5) = 3.53 s

So the time it takes for the sprinter to accelerate for 20.0 m is 3.53 s.

Next, we can use the equation:

v = d/t

to find the time it takes for the sprinter to cover the remaining 80.0 m of the race at his final velocity. Here, d is the remaining distance of 80.0 m and v is the final velocity found before.

t = d/v = 80.0 m / (3.20 m/s) = 25.0 s

So the time it takes for the sprinter to cover the remaining 80.0 m of the race at his final velocity is 25.0 s

So the total time for the race is the sum of the time it takes to accelerate and the time it takes to cover the remaining distance at a constant velocity:

t = 3.53 s + 25.0 s = 28.53 s

Hence, at his current velocity the sprinter will complete the 100.0-m dash in 28.53 s.

To learn more about velocity from the given link:

https://brainly.com/question/25749514

#SPJ4

Identify work or a task that you’d like to make easier by using a device or tool. Here are a few possibilities: Easily pick up paperclips or pins that have fallen on the floor. Make a bed in less time. Move laundry from a basket into a washing machine without bending down. Sweep the floor without bending down. Rinse a collection of dishes at the same time. Efficiently pass salt and pepper shakers around a table. Rescue somebody from a high place. Choose a task from the list or, better yet, come up with your own. Explain how your tool or device will make the task easier. Note the simple machines that the tool or device will use.

Answers

The work or a task that I'd like to make easier by using a device or tool is sweeping the floor without bending down through the use of a vacuum cleaner.

What is a Device?

This is referred to as a mechanical or electronic equipment which is made or adapted for a particular purpose and makes work easier and faster through technological advancement.

In the case of sweeping the floor without bending down, a vacuum cleaner is most appropriate as it uses an electric motor that spins a fan, thereby resulting in the sucking in of air and any small particles caught up in it thereby making it the correct device to be used.

Read more about Device here https://brainly.com/question/28498043

#SPJ1

A helicopter blade spins at exactly 120 revolutions per minute. Its tip is 3.00 m from the center of rotation. (a) Calculate the average speed (in m/s) of the blade tip in the helicopter's frame of reference. m/s (b) What is its average velocity (in m/s) over one revolution

Answers

94.32m/s is the average speed (in m/s) of the blade tip in the helicopter's frame of reference.

What is the typical blade tip speed, measured in metres per second, when viewed from a helicopter perspective?

We discover that the sub average is 73.3 metres per second after entering this formula into our calculator and finding it to three significant numbers. The helicopter blade tip travels at an average speed of that.

How quickly does the blade tip typically move?

After one revolution, the blade point has moved nothing since it goes back to its original position. The average velocity is consequently zero.

FPM = RPM x . 262 x Blade Diameter (inches).

FPM = 120 x . 262 x 3.00 = 94.32m/s

To know more about average speed visit:-

https://brainly.com/question/12322912

#SPJ4

Help!!!!!
Question answer in the photo

Answers

Answer: D

Explanation:

The wind will begin to blow the sediments of the arch away, causing the arched structure to become thinner over time. Therefore, the best answer is option D.

How will you explain the effect of the absorption and release of heat on the kinetic energy and arrangement of particles of matter?

Answers

According to the kinetic theory of matter, changes in heat energy allow for phase transitions between solids, liquids, and gases.

When something is heated, the particles inside move faster and have more energy. When an object warms up, its atoms and molecules gain kinetic energy. When something is heated, its constituent atoms or molecules accelerate in their motion. Matter's kinetic energy can be quickly and easily increased.

When an object warms up, its atoms and molecules gain kinetic energy. The atomic or molecular motions of matter increase with temperature. Lifting a particle's kinetic energy is a breeze. When a substance absorbs heat, the inter-particle bonds in it weaken and break, resulting in a phase transition. If the particles aren't moving faster, there can't be any more heat. 

Want to know more about kinetic energy visit the link which is given below;

https://brainly.com/question/26472013

#SPJ4

How do you reduce high latency?

Answers

Increasing internet speed and bandwidth will help to solve the latency issues. You'll need a network connection with a minimum speed of 15 mbps in order to use the internet efficiently.

Explanation of the previous response:

Eventually, purchasing faster gear will be your best bet for obtaining lower latency. The system's overall latency can be considerably decreased by a faster CPU and GPU. Using the Reflex SDK's Game and Render latencies in games: If your Game Latency is excessive, think about getting a faster CPU.

In general, a latency (or ping) of 40 to 60 milliseconds (ms) or less is considered acceptable, whereas a speed of more than 100 ms will typically result in a significant lag in gaming. The performance of the game is affected by a number of variables.

the GPU, the HDD or SSD that the game is installed on, the amount and speed of RAM, the number of processing cores, and the speed of the disc.

To learn more about latency visit:

brainly.com/question/14894222

#SPJ4

A 1000 kg car is travelling at 67 mph. When it reaches a construction zone the driver brakes for 200 m until the car is travelling at 49 mph. What force did the brakes apply to the car? Assume that there are 1609 metres in one mile and give your answer to the nearest thousand. use v^2 =u^2 +(2xAxS) and F=ma

Answers

Velocity of moving vehicle=v  0, and decceleration =a and Final velocity of the vehicale =0.

What is Velocity?

Once more, the stopping distance is far more than the braking distance. It starts when the threat is identified and concludes when the car stops.

The reaction distance plus the braking distance, or points 1 and 2, together make up the stopping distance.

Therefore, in order to compute the necessary stopping distance, I must determine and add two partial values (reaction distance + brake distance). The reaction time is the amount of time it takes for a driver to spot a danger before braking.

Therefore, Velocity of moving vehicle=v  0, and decceleration =a and Final velocity of the vehicale =0.

To learn more about velocity, refer to the link:

https://brainly.com/question/18084516?

#SPJ1

The person in the figure below is pulling a heavy load. However, the load is resisting the forward motion. The figure can act as a model for what happens in electrical conductors, cells and batteries, and electrical devices in a circuit.

1. Write a paragraph that explains what you think each circuit component would represent in the model, and why.


2. How does the figure model resistance in a circuit?

Answers

The components of an electrical circuit represented by the model are as follows:

the man pulling the load represents the battery or cellthe cord used by the man to pull the load represents the conductors such as wiresthe load pulled by the man represents the resistance.

The figure models resistance in a circuit because just as resistance in a circuit opposes the flow of current, the load resists the movement of the man.

What is an electrical circuit?

An electrical circuit is a complete path that is provided for the flow of electric current.

Tue components of an electric circuit includes:

electrical conductors,cells and batteries,resistancesloads such as electrical bulbs in the circuit.

Learn more about electrical circuits at: https://brainly.com/question/2969220

#SPJ1

Two students have volunteered to explore the galaxy in a spaceship. As they travel through space, they measure the magnitude of the gravitational force between their spaceship and the earth they find that the gravitational force on the spaceship is-

Answers

The gravitational pull on the spacecraft is discovered to be inversely proportional to the distance from the Earth.

If the gap were cut in half, the gravitational attraction would be more powerful. According to Coulomb's rule, the gravitational force between any two things in the universe is inversely proportional to the sum of their respective masses.

The gravitational force between two things in the cosmos is calculated as being inversely proportional to their distance from one another. Gravity is the force that holds two bodies together, body present or not.

A force that is directly inversely correlated to the square of the distance between bodies and directly inversely correlated to their product draws every body in the universe toward every other body.

Thus , Inversely related to the separation from the Earth.

To know more about gravitational pull

https://brainly.com/question/8990197

#SPJ4

How does convection cause tectonic plates to move?

A
Convection keeps the plates thin enough to move.

B
Convection makes the plates solid enough to move.

C
The rising heat of convection currents moves the almost-liquid rocks.

D
The pressure of convection bends rocks until they break completely.

Answers

The plates become sufficiently stable by convection. The almost liquid rocks are moved by the convection currents' growing heat, hence option C is correct.

What are tectonic plates?

Rocks flex under the pressure of convection until they entirely fracture. Radiation decay in the core causes convection currents, which are produced by heat rising and sinking inside the mantle.

In convection currents, the plates are moved. The separation of plates occurs when convection currents split close to the Earth's crust.

Therefore, the convergence of convection currents causes plates to move in the same direction.

Learn more about tectonic plates, here:

https://brainly.com/question/18612190

#SPJ1

If a net force of 10 newtons acts on a 6 kilogram mass of 8 seconds, the total change of momentum of the mass is

Answers

The total change in momentum of the mass is calculated to be 80.16 kg m/s.

Given that,

Force F = 10 N

Mass m = 6 kg

Time t = 8 sec

"Newton's second law states that F = m a."

Making 'a' as subject,

a = F/m = 10/6 = 1.67 m/s²

From the equations of motion, let us calculate velocity.

v = u + a t

v = 0 + 1.67 × 8 = 13.36 m/s

Δp = m(v - u) = 6 × ( 13.36 - 0) = 80.16 kg m/s

Thus, the change of momentum is 80.16 kg m/s.

To know more about momentum:

https://brainly.com/question/30081766

#SPJ4

Which of the following would be potential impacts of global climate change on thermohaline circulation in the oceans?

A: slowing the rate of circulation


B: no effect of circulation


C: changing the direction of circulation


D: increasing the rate of circulation

Answers

The potential impacts of global climate change on thermohaline circulation in the oceans is increasing the rate of circulation. That is option D.

What is thermohaline circulation?

The thermohaline circulation is defined as the process by which deep-ocean currents are driven by differences in the water's density, which is controlled by temperature (thermo) and salinity (haline).

When there is global climate change increased temperature of water masses would cause these currents to flow faster given the higher kinetic energy of the water molecules.

Therefore, there is increase in rate of circulation when there is global climate change.

Learn more about climate change here:

https://brainly.com/question/24793273

#SPJ1

Acar drives 150 km east from city A to B in 45 minutes and then 300 km south from city B to C in 1,5 hours. What is the average velocity vector for the trip?

Answers

The required average velocity vector for the trip is calculated to be 100 i + 200 j and its magnitude is 223.6 km/h.

The displacement due east is taken as 150 i.

The displacement due south is taken as 300 j.

The net displacement is given as, 150 i + 300 j.

Magnitude of net displacement = √(150² + 300²) = √112500 = 335.41 km

We get the average velocity by dividing the displacement vector by total time.

v avg = (150 i + 300 j)/1.5 = 100 i + 200 j

Magnitude of net velocity = √(100² + 200²) = √(10000 + 40000) = 223.6 km/h

Thus, the average velocity vector is 100 i + 200 j.

To know more about average velocity:

https://brainly.com/question/13490241

#SPJ4

Newton's First Law of Motion means that it will take a force to start and stop an object in motion. a) True b) False

Answers

To start and stop an item in motion, according to Newton's First Law of Motion, requires a force.

Newton's First Law: What Is It? Why does it mean that?

Newton's first law encapsulates the idea that an object's velocity only changes in response to a force. Unless acted upon by a net external force, Newton's first law states that an object at rest will remain at rest and an object in motion will continue to move at a constant speed.

What does Newton's formula's first law state?

Unless acted upon by a net external force, Newton's first law states that an object at rest will remain at rest and an object in motion will continue to move at a constant speed.

To know more about Newton's Law of motion visit:-

https://brainly.com/question/29775827

#SPJ4

A thermodynamic system undergoes a process in which its internal energy decreases by 500 joules. at the same time, 220 joules of work is done on the system. what is the amount of heat transferred to or from the system?
a. 280 joules
b. 720 joules
c. -280 joules
d. -720 joules
e. 0 joules

Answers

The amount of heat transferred from the system is -720j, hence option d is the proper response. It passes through a process where its internal energy drops by 500 joules in a thermodynamic system.

The system receives 220 joules of work at the same time. A thermodynamic system's internal energy is the energy that it contains, excluding the energies that are determined by how it interacts with its environment, such as the system's overall kinetic energy of motion and its overall potential energy with regard to external force fields. The definition of heat in thermodynamics is the kind of energy that crosses a thermodynamic system's boundary.

U = Q+W

Q = U - W Q = -500 -220 = -720J

Learn more about kinetic energy here

https://brainly.com/question/26472013

#SPJ4

You may think of a sheet of aluminum foil as a 2D object, but it is really a 3D object because it has a non-zero thickness. Consider a sheet of aluminum foil that is 17.4 inches by 14.8 inches and has a mass of 10.8 grams. Of the density of aluminum is 2.7 g/cm3, what is the thickness of the foil in mm

Answers

Answer:

Below

Explanation:

17.4 inches = 441.96 mm      14.8 inches = 375.92 mm

volume = 441.96 X 375.92 X T  

                                   = 166141.6 T  mm^3  <===where T = thickness in mm

Volume X density = mass

 166141.6 T mm^3  * 2.7 gm/cm^3  * cm^3 / 1000mm^3  = 10.8 gm

     solve for T = .024 mm

calculate the frequency of the red light emitted by a neon sign with a wavelength of 659.9 nm.

Answers

The frequency of the red light emitted by a neon sign with a wavelength of 659.9 nm is 4.5×10^14 Hz.

What is the frequency?

The frequency is the number of times a recurring occurrence takes place during a predetermined period. For example, if an event occurs twice in one second, then the frequency is 2 Hz (Hertz).

A recurring event's frequency is the number of times it happens in a predetermined period. For example, a frequency of a wave is the number of wave peaks passing a fixed point in one second.

The frequency is the number of times something occurs in a given period. For example, the frequency of a radio station is the number of times it broadcasts a signal per second.

Given:

Wavelength = 659.9nm

Speed of light = 3×10^8 m/s

Frequency = speed of light / wavelength

Frequency = (3.0 x 10^8 m/s) / (659.9 nm)

Frequency = 4.5 x 10^14 Hz

To know more about frequency visit:

brainly.com/question/29213586

#SPJ4

a child swings on a playground swing with a 2.5 m long chain. what is the period of the child's motion. what is the frequency of the vibration

Answers

The period of the child's motion is 3.171 seconds. The frequency of the vibration is 0.315 Hz.

The time period is 3.171 seconds.

2 × [tex]\pi[/tex] [tex]\frac{L}{g} ^{\frac{1}{2} }[/tex]

= 3.171 seconds

The frequency is the reciprocal of the time period.

f = 1 ÷ 3.171

= 0.315Hz

Learn more about frequency here:-

https://brainly.com/question/29739263

#SPJ4

A quarterback runs 5 yards backwards and then 15 yards forward.
What is the quarterback's distance traveled?
What is the quarterback's displacement?

Answers

The quarterback also touches the ball on almost every offensive play, and is almost always the offensive player that throws forward passes.

What is the quarterback's?

The quarterback (sometimes abbreviated "QB") is a position in gridiron football, also referred to as the "signal caller" Quarterbacks typically line up directly behind the offensive line and are part of the offensive platoon.

In contemporary American football, the quarterback is typically regarded as the offensive coordinator and is frequently in charge of calling the play in the huddle. The quarterback almost always delivers forward passes for the offence and touches the ball on practically every offensive play.

A sack occurs when the quarterback is beaten behind the line of scrimmage. In contemporary American football, the starting quarterback is typically the offensive coordinator, and his or her accomplishments or shortcomings can have a big impact on the team's performance.

To learn more about quarterback's refer to:

https://brainly.com/question/29689562

#SPJ1

The offensive player who delivers forward passes almost always is the quarterback, who touches the ball on almost every offensive play as well.

The quarterback's, what is it?

In gridiron football, the quarterback, sometimes known as the "signal caller," is one of the positions. As a member of the offensive platoon, quarterbacks often line up directly behind the offensive line.

The quarterback is frequently in charge of calling the play in the huddle and is generally considered as the offensive coordinator in modern American football. In almost every offensive play, the quarterback touches the ball and almost always completes forward throws for the offense.

The quarterback is tackled behind the line of scrimmage, which results in a sack. Currently, the starting quarterback in American football is Usually, the offensive coordinator, and his or her successes or failures, can have a significant effect on the team's performance.

For more information on quarterback kindly visit to

https://brainly.com/question/30040236

#SPJ1

What is the correct definition of minerals

Answers

  The correct definition of minerals is 'nutrients that strengthen bones and teeth, help keep the blood healthy, and keep the heart and other organs working properly'

 Minerals and vitamins are essential micronutrients that the body uses to carry out its normal functions. Minerals can be obtained from foods (or artificially), these micronutrients have fundamental roles in growth, fluid balance, bone health, and different physiological processes.  Some of the most important minerals include calcium, iron, phosphorous, fluoride, selenium, sodium, copper, iodine, and zinc.

2. An airboat with mass 3.50 x 102 kg, including the passenger, has an engine that produces a net horizontal force of 7.70 x 102 N, after accounting for forces resistance. a. Find the acceleration of the airboat b. Starting from rest, how long does it take the airboat to reach a speed of 12.0 m/s2

Answers

The acceleration of the airboat which has a mass of 350 kg is 2.2 m/s²

The time the airboat takes to reach the speed of 12 m/s is 5.45 seconds

The mass of the airboat = 350 kg

The net horizontal force of the airboat = 770 N

The acceleration of the airboat can be found using the formula,

         F = ma

where F is the force

           m is the mass

           a is the acceleration

Let us rearrange the above equation, we get

          a = F/m

Let us substitute the known values in the above equation, we get

           a = 770 / 350

              = 2.2 m/s²

The time taken to reach the speed of 12 m/s is

               a = v/t

where a is the acceleration

           v is the velocity

           t is the time taken

Let us rearrange the equation, we get

          t = v/a

Let us substitute the known values in the above equation, we get

          t = 12 / 2.2

           = 5.45 seconds

           

Learn more about the force in

https://brainly.com/question/15321240

#SPJ4

why should a counterweight be moveable

Answers

A weight known as a counterweight is one that stabilizes and balances a mechanical system by exerting an opposing force.

Why do moveable flight control surfaces have large counterweights installed in the leading edge?

A counterweight's function is to speed up and improve the efficiency of lifting the load, which conserves energy and reduces wear and tear on the lifting apparatus. A weight known as a counterweight is one that stabilizes and balances a mechanical system by exerting an opposing force.

To lift loads up to 120 tons, tower cranes are utilized at large building sites. In a tower crane, a fixed and a moveable counterweight are held by two arms that extend from the center of the structure. For the purpose of balancing the load, the operator moves the mobile counterweight.

For the purpose of providing offset forces in the flight controls, counter weights are used. With less pressure needed to move the controls, this gives them better "feel" and "feedback" forces.

To learn more counterweight refer to:

https://brainly.com/question/29840021

#SPJ1

A counterweight should  be moveable so as to make lifting the load in a faster and more efficient manner.

What is a counterweight?A counterweight is a weight which has a major purpose to help maintain the stability and balance of a mechanical system by exerting an opposing force. A counterbalance or counterweight is usually used to lift a load more quickly and effectively, which saves energy and reduces wear and tear on the lifting apparatus used with it.The potential energy obtained is equivalent to the work done to lift the counterweight.When the counterweight is being displaced by a force that is acting in the same direction as the applied force, the potential energy gained is equal to that distance it is working or kept.

To know more about counterweight  visit

https://brainly.com/question/17236917

#SPJ1

What part of the scientific method tells us the real answer to the problem?

Answers

Conclusion part of the scientific method tells us the real answer to the problem.

Analysis and Conclusion ,In this step, the experiment's outcomes are determined using appropriate mathematical and other scientific techniques. The study can be used to determine the best course of action moving forward. The hypothesis is accepted if the evidence from the analysis support it.

The scientific method is a procedure used by scientists to explore, confirm, or create a precise and trustworthy model of any natural phenomenon. They are carried out by developing an objective framework for scientific inquiry, analyzing the findings objectively, and drawing a conclusion that either confirms or disproves the initial observation.

To know more about scientific method

https://brainly.com/question/7980104

#SPJ4

The internal energy within a system associated with the motion of particles and that can be added to a substance is called _____.(1 point) electrostatic forces electrostatic forces temperature temperature thermal energy thermal energy kinetic energy

Answers

Thermal energy is the internal energy that exists in a system and is connected to the movement of the particles and can be contributed to a substance.

Describe thermal energy.

The energy in such a system that regulates its temperature is referred to as thermal energy. The exchange of thermal energy is referred to as "heating." Thermodynamics, a whole field of physics, is the study of how heat is transmitted between various systems and how work is performed in the process.

Describe motion.

In physics, motion is a variation in an object's position with respect to its surroundings over a predetermined amount of time. To describe how an object travelling with a specific mass moves, use the terms below: Distance. Displacement. Speed.

So-called thermal energy is the internal energy present in a system that is connected to particle motion that can be given to a substance.

Learn more about thermal energy from the given link.

https://brainly.com/question/19666326

#SPJ4

What does the second law of thermodynamics tell us about?

Answers

Explanation:

The Second Law of Thermodynamics states that the state of entropy of the entire universe, as an isolated system, will always increase over time. The second law also states that the changes in the entropy in the universe can never be negative.

Position Collisions
Scenario 1: Fatima and Alberta are playing catch. Fatima is standing at
the door, while Alberta is standing 8m away to the right. Fatima throws a
paper ball to the right with a speed of 2.4m/s. Alberta realizes that she is
to far away and runs to the left at 0.6m/s. When and where will Alberta meet
the paper ball?

Answers

Answer:

t = (x_ball + 8 ) / 0.6

Explanation:

To solve this problem, we can use the equations of motion for the paper ball and Alberta, and then set them equal to each other to find the time and position where they will meet.

The equation of motion for the paper ball is:

x = x0 + v0t + (1/2)at^2

where x is the position of the paper ball, x0 is the initial position (the door), v0 is the initial velocity (2.4 m/s to the right), t is the time, and a is the acceleration (which is 0 for a thrown ball).

The equation of motion for Alberta is:

x = x0 + v0t + (1/2)at^2

where x is the position of Alberta, x0 is the initial position (8 m to the right), v0 is the initial velocity (-0.6 m/s to the left), t is the time, and a is the acceleration (which is 0 for a person running).

If we set these two equations equal to each other, we get:

x_ball = x_alberta

x0 + v0t + (1/2)at^2 = x0 + v0t + (1/2)at^2

This simplifies to:

x_ball = x_alberta

Then we know that both x_ball and x_Alberta are the same point in space (where Alberta met the paper ball)

Now to find time, we need to use one of the original equation for time t. Using equation of motion for Alberta,

x_Alberta = x0 + v0t

So, t = (x_Alberta - x0) / v0

t = (x_ball - 8 ) / (-0.6) = (x_ball + 8 ) / 0.6

The negative sign of velocity of Alberta tells that she is running towards left whereas ball is thrown towards right.

So we can find time and position where Alberta will meet the paper ball by plugging in the specific distance (x_ball) and known values for x0, v0 and acceleration.

A person pushes a book against a wall so that the book does not move. a. Draw a free-body diagram for the book. Label the forces as you did in the tutorial Forces. b. For each force that appears on your free-body diagram, identify the corresponding force that completes the Newton's third law (or action-reaction) force pair.

Answers

a) Pls refer to the attached picture. (b)The force with which the person i

Please give an explanation on how to do this

Answers

The time that is taken by the cart is given as 34.7 s.

What is the time taken?

Let us have it at the back of our minds that what we are dealing with here is the velocity and that the velocity of the object can be said to be a vector quantity. If it is a vector quantity, we would need to look at the magnitude and the direction of the quantity.

We can now see that the velocity of the object can be defined as the change in the velocity of the object with time. We can now write;

V = Δx/t

V = velocity

Δx = change in the displacement

t = time

Then;

-0.418 = 5.40 - 19.9/t

t = -14.5/-0.418

t = 34.7 s

In the movement of the cart from one point on the plane to the other, the time that has been taken by the cart is about 34.7 s.

Learn more about velocity:https://brainly.com/question/18084516

#SPJ1

The drop time can be calculated as follows: where y is the vertical height of the table and g is the
acceleration due to gravity. How did the calculated drop time compare to the average of your measured drop
times? Find the percent error using the following equation:
What factors might cause the differences?

Answers

Answer:

Tt can be calculated by copy

Other Questions
Read the following excerpts and then answer the question below.Excerpt 1:Excerpt from "Pearl Harbor Address to the Nation" given by Franklin Delano Roosevelt, delivered 8 December 1941, Washington, D.C.Yesterday, December 7th, 1941a date which will live in infamythe United States of America was suddenly and deliberately attacked by naval and air forces of the Empire of Japan.The United States was at peace with that nation and, at the solicitation of Japan, was still in conversation with its government and its emperor looking toward the maintenance of peace in the Pacific.Indeed, one hour after Japanese air squadrons had commenced bombing in the American island of Oahu, the Japanese ambassador to the United States and his colleague delivered to our Secretary of State a formal reply to a recent American message. And while this reply stated that it seemed useless to continue the existing diplomatic negotiations, it contained no threat or hint of war or of armed attack.1It will be recorded that the distance of Hawaii from Japan makes it obvious that the attack was deliberately planned many days or even weeks ago. During the intervening time, the Japanese government has deliberately sought to deceive the United States by false statements and expressions of hope for continued peace.The attack yesterday on the Hawaiian islands has caused severe damage to American naval and military forces. I regret to tell you that very many American lives have been lost. In addition, American ships have been reported torpedoed on the high seas between San Francisco and Honolulu.Excerpt 2:Excerpt from a 1917 speech given by Senator George Norris opposing America's entry into World War I.While I am most emphatically and sincerely opposed to taking any step that will force our country into the useless and senseless war now being waged in Europe, yet, if this resolution passes, I shall not permit my feeling of opposition to its passage to interfere in any way with my duty either as a senator or as a citizen in bringing success and victory to American arms. I am bitterly opposed to my country entering the war, but if, notwithstanding my opposition, we do enter it, all of my energy and all of my power will be behind our flag in carrying it on to victory.The resolution now before the Senate is a declaration of war. Before taking this momentous step, and while standing on the brink of this terrible vortex, we ought to pause and calmly and judiciously consider the terrible consequences of the step we are about to take. We ought to consider likewise the route we have recently traveled and ascertain whether we have reached our present position in a way that is compatible with the neutral position which we claimed to occupy at the beginning and through the various stages of this unholy and unrighteous war.No close student of recent history will deny that both Great Britain and Germany have, on numerous occasions since the beginning of the war, flagrantly violated in the most serious manner the rights of neutral vessels and neutral nations under existing international law, as recognized up to the beginning of this war by the civilized world.The reason given by the President in asking Congress to declare war against Germany is that the German government has declared certain war zones, within which, by the use of submarines, she sinks, without notice, American ships and destroys American lives . The first war zone was declared by Great Britain. She gave us and the world notice of it on, the 4th day of November, 1914. The zone became effective Nov. 5, 1914 . This zone so declared by Great Britain covered the whole of the North Sea . The first German war zone was declared on the 4th day of February, 1915, just three months after the British war zone was declared. Germany gave fifteen days' notice of the establishment of her zone, which became effective on the 18th day of February, 1915. The German war zone covered the English Channel and the high seawaters around the British Isles.What is the difference in tone between the excerpts? Excerpt 1 is remorseful and Excerpt 2 is hopeful. Excerpt 1 is hopeful and Excerpt 2 is aggressive. Excerpt 1 is melancholy and Excerpt 2 is accusatory. Excerpt 1 is decisive and Excerpt 2 is contemplative. Which evidence best supports the claim that mutations are a source of inheritable genetic variation? ANSWER: Mutations affect protein synthesis which impacts the way traits are expressed.Sickel cell anemia. What type of mutation error has occurred to cause the disorder shown?ANSWER: substitutionExamine the two strands of DNA below. Which kind of mutation occurred?Original strand: AGC GTA CCC TACNew strand: AGC GTA ACC TACANSWER: substitutionMillions of years ago, the ancestors of giraffes had short necks and used to eat leaves from the bushes on the ground. A genetic mutation caused one giraffe's neck to be taller. This long-necked giraffe was able to eat leaves that were higher up on trees. This gave it an advantage as it was able to access more food than other giraffes. Over millions of years, all of the giraffes became long-necked. Which type of environmental factor caused this mutation to be inherited? ANSWER: food availability What is one way that a frameshift mutation could occur? ANSWER: two nucleotides are deleted Drag each label to the correct location.Determine whether the description applies to landfills, incinerators, or both. Is 817 a good credit score? What does Jefferson predict will happen to the country now that that the election is over? The principal of a new elementary school wants to give an IQ test to all students when they enter the school. The students will then be placed in groups of students with similar IQ scores. The principal assures the community that this plan is supported by scientific research and will improve education for all students, regardless of their ability.Using evidence, present an argument for or against intelligence testing for children early in life.Using evidence, present an argument for or against schools that track children based on intelligence test scores, separating high scorers from those with lower scores.Using evidence, present an argument supporting the claim that environmental influences affect intelligence.Using evidence, present an argument supporting the claim that labeling or tracking students could lead to stereotype threat. or each sequence of DNA is shown. Write the complementary RNA sequence underneath the letters, thenuse the codon chart to determine the amino acid sequence:DNA A C A T T T C A G A C C G T C In three complete sentences, describe how i should find the solution to the system of equations below. -6x + 3y = -12x - y = 14 Why is the ability to hover useful to a hummingbird? Refer to the text to support your answer. Please help I have no idea how to figure this out I have to write a parable according to the proverb "He who walks with a wise man will become wise, but he who walks with a fool will become a fool" please help me How can you differentiate between direct and indirect imperial rule? Archeological studies of Mycenaean cities and palaces indicate that the Mycenaeans were warriors. Were isolated from outside contacts. Were ruled by powerful kings and large bureaucracies. Spoke a version of Latin rather than Greek 8. Which one of the following statements most clearly describes the "problem of the match"?O A. Children should be challenged optimally beyond their current mental abilities.B. The more children are challenged, the more they'll pay attention to new material.C. Children are most attentive when a teacher is talking about information they already are familiar with.D. Caregivers should consider activities that are too easy for children, so they feel successful. A tore i having a ale on almond and jelly bean. For 5 pound of almond and 2 pound of jelly bean, the total cot i $12. For 3 pound of almond and 8 pound of jelly bean, the total cot i $31. Find the cot for each pound of almond and each pound of jelly bean What percentage of immature T-cells pass both tests and circulate into the bloodstream? 2% 5% 10% 20% Which of the following statements best describes an unintended environmental consequence of aquaculture fish-farm enclosures located in estuaries?Aquaculture enclosures can harbor parasites that can negatively affect wild populations that breed in estuaries. Which equation can be used to find B in the triangle below?Right triangle A B C is shown. Side A B has a length of 6, side B C has a length of 10, and side A C has a length of 8. 5. If a jump rope is shaken fast enough to produce a wave with a wavelength of 0.5 m andthe crest of the wave passes a specific point 6 times per second, what is the velocity of thewave?Answer: You have a small globe, which is mounted so that it can spin on the polar axis and can be spun about a horizontal axis (so that the south pole can be on top).Give the globe a quick spin about the polar axis, and then, before it stops, give it a spin about the horizontal axis. Are there any points on the globe that are at rest?(A) There are two points, fixed on the globe, that are at rest,(B) There are two points that are instantaneously at rest, but these two points move around the globe in an apparently random fashion,(C) At some times two points are instantaneously at rest,(D) There are no points at rest until the globe stops spinning help pleaseeeeeeeee