You launch a model rocket that has a mass of 1.5 kg. At a height of 300 m, it is traveling at 125 m/s. What is it's kinetic energy at this point

Answers

Answer 1

Answer:

KE = 11,719 J

Explanation:

KE = ½ mv²

KE = ½ (1.5 kg) (125 m/s)²

KE = 11,719 J

Answer 2

Answer: 11,719 J

Explanation:

just did it on a.p.e.x


Related Questions

What is Burgers????????????????????

Answers

Answer:

food

Explanation:

its is a fast food option or homemade option of ground beef made into a patty and put on buns

A 950 kg truck accelerates from rest to 15 m/s in 2.3 seconds as it drives down a rough road. If the forward force of the engine is 7000 newtons, determine the force of friction between the tires and the road. 804 N 6,196 N 7,250 N 14,250 N

Answers

Answer:

804 N

Explanation:

We are given;

Mass; m = 950 kg

Initial velocity; u = 0 m/s

Final velocity; v = 15 m/s

Time; t = 2.3 s

Engine force; F_e = 7000 N

From Newton's first equation of motion;

v = u + at

15 = 0 + 2.3a

a = 15/2.3

a = 6.5217 m/s²

From Newton's second law of motion and since friction always opposes motion, we have;

F_e - F_f = ma

Where F_f is frictional force.

Thus;

F_f = F_e - ma

F_f = 7000 - (950 × 6.5217)

F_f ≈ 804 N

who wants to be freinds

Answers

Hello there, Goodmorning and God Bless...Here is your answer to your following question:

yessss i do!!!

Answer:

why not

Explanation:

An object with an initial speed of 4.0 meters per second accelerates uniformly at 2.0 meters per second squared in the direction of its motion for a distance fof 5 meters. What is the final speed of the object

Answers

Answer:

6 m/s.

Explanation:

From the question given above, the following data were obtained:

Initial velocity (u) = 4 m/s

Acceleration (a) = 2 m/s²

Distance (s) = 5 m

Final velocity (v) =?

The final velocity of the object can obtained as shown below:

v² = u² + 2as

v² = 4² + (2 × 2 × 5)

v² = 16 + 20

v² = 36

Take the square root of both side.

v = √36

v = 6 m/s

Therefore, the final speed of the object is 6 m/s.

The final speed of the object as it accelerates uniformly in the direction of its motion is 6m/s.

Given the data in the question;

Initial speed; [tex]u = 4.0m/s[/tex]Acceleration; [tex]a = 2.0m/s^2[/tex]Distance; [tex]s = 5m[/tex]

Final speed; [tex]v = \ ?[/tex]

To determine the final speed of the object, we use the third equation of motion:

[tex]v^2 = u^2 + 2as[/tex]

Where v is the final speed or velocity, u is the initial velocity, a is the acceleration and s is the distance covered.

We substitute our given values into the equation

[tex]v^2 = [(4.0m/s)^2] + [ 2\ *\ 2.0m/s^2\ *\ 5m ]\\\\v^2 = 16m^2/s^2 + 20m^2/s^2\\\\v^2 = 36m^2/s^2\\\\v = \sqrt{36m^2/s^2} \\\\v = 6m/s[/tex]

Therefore, the final speed of the object as it accelerates uniformly in the direction of its motion is 6m/s.

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Explain the effect of changing the temperature on pressure in terms of velocity and force of particles

Answers

Answer:

As the temperature increases, the average kinetic energy increases as does the velocity of the gas particles hitting the walls of the container

Explanation:

To open and close a circuit, a
can be used.

Answers

You can use a light thing to turn it off and on now if you can give me 5 stars that would be great

Direction is a straigt path an object moves.
True
False

Answers

Answer:

Direction is a path an object moves in general, so true

Explanation:

A distance-time graph indicates that an object travels 2 m in 2 s and then travels another 80 m during the next 40 s. What is the average speed of the object? 2 m/s 8 m/s 4 m/s 10 m/s

Answers

Answer:

1.92 the aver...

Explanation:

Answer:

Its 2 miles every second

Explanation:

(6.1) What are atoms? What particles are they composed of? What is the relative location and charge of each particle?

Answers

Answer:

Atoms are the smallest point of matter they are composed of protons nutrons and electrons protons and nutrons are located in the nucleus electrons are in the electron cloud the charge of protons is a positive charge electrons are negative and nutrons are nutrul.

Atoms, smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of mattered that has characteristics properties of a chemical element. as such, The atom is a basic building blocks of chemistry.

How much kinetic energy does a 2 kg book falling out of the backpack with a velocity of 4 m/s have?

Answers

Answer:

E = 16 J

Explanation:

Given that,

Mass of a book, m = 2 kg

Velocity of the book from the backpack, v = 4 m/s

We need to find the kinetic energy of the book falling out of the backpack. Due to the motion of the object, kinetic energy is possessed by it. It can be given by :

[tex]E=\dfrac{1}{2}mv^2\\\\=\dfrac{1}{2}\times 2\ kg\times (4\ m/s)^2\\\\=16\ J[/tex]

So, the kinetic energy of the book is 16 J.

A farmer is walking through a field at a velocity of +0.5 meters per second (m/s) relative to the ground. At the same time, he is throwing seeds in front of him at a velocity of +2.1 m/s relative to himself. What is the velocity of the seeds relative to the ground as they travel through the air?

Answers

Answer:

The velocity of the seeds relative to the ground as they travel through the air is 2.6 meters per second.

Explanation:

From Physics, we know that the absolute velocity of the seeds ([tex]v_{S}[/tex]) is the sum of the absolute velocity of the farmer ([tex]v_{F}[/tex]) and the velocity of the seeds relative to the farmer ([tex]v_{S/F}[/tex]), all measured in meters per second. That is:

[tex]v_{S} = v_{F}+v_{S/F}[/tex] (1)

If we know that [tex]v_{F} = 0.5\,\frac{m}{s}[/tex] and [tex]v_{S/F} = 2.1\,\frac{m}{s}[/tex], then the velocity of the seeds relative to the ground is:

[tex]v_{S} =0.5\,\frac{m}{s} + 2.1\,\frac{m}{s}[/tex]

[tex]v_{S} = 2.6\,\frac{m}{s}[/tex]

The velocity of the seeds relative to the ground as they travel through the air is 2.6 meters per second.

1-5 please help will mark brainliest

Answers

Answer:

the deficiency is the target audience of the most important and important the target audience of this advertisement is to provide the target of the best of all time and k to detect and k a solution please send emote and

A Ford F-150 truck is driving on a dirt road and a deer steps out in front of the truck. The truck is moving at 22 m/s and stops in 4.5s. What is the rate of acceleration of the truck?

Answers

Answer:

4.8

Explanation:

Thirty-five (35.0) mL of ozone (O3) is stored at a temperature of 285 K and a pressure of 150.0 Pa. If the pressure is decreased to 125 Pa, what will be the new temperature?

Answers

Answer:

Temperature T2 = 237.5 K

Explanation:

Given:

Volume = 35 ml

T1 = 285 k

P1 = 150 pa

P2 = 125 pa

Find:

Temperature T2

Computation:

P1V/T1 = P2V/T2

150(35) / 285 = 125(35) / T2

Temperature T2 = 237.5 K

Question 2 How can an induced magnet be made stronger? adding more secondary coils O adding more induction O adding more primary coils​

Answers

Answer: adding a secondary coils

Explanation:

You can make an electromagnet stronger by doing these things: wrapping the coil around a piece of iron (such as an iron nail) adding more turns to the coil. increasing the current flowing through the coil.

Induced magnet be made stronger,by adding more secondary coils.

Increasing the magnetic field applied to the magnetizable material in turn makes its own magnetic field stronger. Similarly, wrapping with thicker wire has the same effect, but by increasing the current. Like a widening river, a thicker conductor allows more current through.

What is secondary coil ?

"Coil such that current is induced in it by passing a current through the primary coil. secondary winding, secondary. coil - reactor consisting of a spiral of insulated wire that introduces inductance into a circuit."

What is magnetic field ?

"A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field."

Know more about magnet here

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A star has right ascension of 5 hours. Which of these statements is correct about the star?

A. It is five hours to the west of zero hours right ascension.
B. It is five hours to the east of zero hours right ascension.
C. It is five hours to the north of zero hours right ascension.
D. It is five hours to the south of zero hours right ascension.

Answers

Answer:

I believe the answer is A, it is to the west as the right ascension is only east and west

Explanation:

When i took the quiz, I put east and had gotten it incorrect.

What's the equation for impulse? (physics)

Answers

Answer:

F • t = m • Δ v

Explanation:

Jocelyn is running for the U.S Senate. What is one of the qualifications for office she must meet?


have resided in the United States for at least 10 years


have served as Governor of the state she will represent.


reside in the state she will represent


have been a member of the U.S. House of Representatives

Answers

Answer:

b

Explanation:

Answer:

Reside in the state she represents.

Explanation:

Every position in government needs at least one qualification. she needs to reside in the state she represents because U.S Senators represent their state witht he views and stuff.

Hope this helps :)

Check the See Inside Magnet box. Describe what you see.

Answers

Answer:

where is it??

Explanation:

Answer:

The bar magnet appears to be made up of smaller magnets, each with a red end and a white end.

Explanation:

Edmentum Answer

Exercising and eating healthy will help you have a good body composition.
A.
True
B.
False

Answers

Answer: A

Explanation:

Answer:

True

Explanation:

Nutrition and exercise are critical for improving body composition.

The transfer of energy in liquids and gases as groups of molecules move in currents is

Convection
Conduction
Radiation
Convection currents

Answers

Convection is your answer

If the cause of a disease is considered
multifactorial, that means

Answers

I don’t know plz define it next time thanks that will be good ok peace

Answer:

B) the disease is caused by more than one factor

Explanation:

Just did the assignment:)

What is the mechanical advantage of a lever that is 20 meters
long and uses 10,200 N to lift a 6,000-kg dump truck 3 meters
into the air?

Answers

Answer:

5.765

Explanation:

Answer:

5.765

Explanation:

Which system of measurement do you prefer: metric or customary? Explain why?

This is seince not physics

I give brainlist! #20points

Answers

Answer:

The customary system is the system of measurement that is primarily used in the U.S. units in this system include the inch, foot, mile, pound, and also the cup.

The metric system is the system of measurement primarily used in science and in countries outside of the U.S. Units in this system include the meter, liter, and also gram.

Explanation:

I hope this works. :DD

I prefer using Customary system because its already in our country and easier for use because its easier for us to learn

30 points plz help ill do anything... literally anything.
A car moving at 10 m/s slows to a stop.
It moves 25 meters forward while braking.

1. How much time does it take to slow to a stop? Explain how you found your answer.

2. What is its braking acceleration? Explain how you found your answer.

Answers

Answer:

1. 2.5s

Explanation:

1. For time, divide Distance / speed

25m / 10

=2.5s

pls help asap. will mark as brainliest if correct

Answers

Answer:

Hey mate, here is your answer answer. Hope it helps you

Explanation:

1. If a worker has come into contact with electricity the worker may not be able to remove themselves from the electrical source. The human body is a good conductor of electricity. If you touch a person while they are in contact with the electrical source, the electricity will flow through your body causing electrical shock. Firstly attempt to turn off the source of the electricity (disconnect). If the electrical source can not readily and safely be turned off, use a non-conducting object, such as a fibreglass object or a wooden pole, to remove the person from the electrical source.

2. C- Electrical energy.The term electrical activity means that the food itself has the power to generate electric energy that persists some period of time. This work presents a purely renewable energy as energy comes. the zinc reacts with food tissue.

Number2 is a chemical energy

A 700 kg car makes a turn going at 30 m/s with radius of
curvature of 120 m. What is the force of friction between the car's tires and the road?

Answers

Answer:5250 N

Explanation: ig:iihoop.vince

The force of friction between the car's tires and the road is 5250 N

Centripetal force is the force that is perpendicular to an object moving in circular motion. It is given by:

F = mv²/r

where m is the mass of object, v is the velocity and r is the radius of circle.

Given that m = 700 kg, v = 30 m/s, r = 120 m, hence:

F = mv²/r = 700 * 30²/120 = 5250 N

The force of friction between the car's tires and the road is 5250 N

How long does it take for the Earth to make a complete revolution around the sun?

Answers

365 days so a year basically

365 days, 5
Earth revolves around the sun in 365 days, 5 hours, 59 minutes and 16 seconds. The time a planet takes to revolve around the sun is called a year.

How do you think each firefighting method affects the chemical reaction involved in wildfires

Answers

Answer:

I think it effects it by how the fire being a chemical reaction since it has gas in it, it effects it by how the water pputs it out, and it stopping the chemical reactions

Explanation:

If you have two wires made out of the same material and the same thickness, one is 3-inches long and one is 6-inches long, which one has the greater resistance?
plz help!!

Answers

Answer:

The 3-inch wire has greater resistance.

Explanation:

The only difference between the wires is their length. According to the formula for resistance, the longer wire will have greater resistance.

What is Ohm's law?

Ohm's law is a fundamental law of electrical circuits that describes the relationship between voltage, current, and resistance in a conductor. It states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them. This law is named after Georg Simon Ohm, a German physicist who first stated it in 1827.

The mathematical equation for Ohm's law is:

V = IR

Where:

V is the voltage or potential difference measured in volts (V)

I is the current flowing through the conductor measured in amperes (A)

R is the resistance of the conductor measured in ohms (Ω)

This equation states that the voltage (V) applied across a conductor is equal to the product of the current (I) flowing through the conductor and the resistance (R) of the conductor.

In other words, Ohm's law tells us that if we increase the voltage applied to a conductor, the current flowing through it will also increase, assuming the resistance stays constant. Similarly, if we increase the resistance of a conductor, the current flowing through it will decrease, assuming the voltage stays constant.

Ohm's law is an essential concept in electrical engineering and is used extensively in the design and analysis of electrical circuits. It allows us to predict how changing the voltage, current, or resistance in a circuit will affect the other two variables.

Here in the question,

Assuming that the wires have the same cross-sectional area and are made of the same material, the longer wire will have greater resistance. This is because the resistance of a wire is directly proportional to its length and inversely proportional to its cross-sectional area.

The resistance of a wire can be calculated using Ohm's law: R = V/I, where R is resistance, V is voltage, and I is current. The resistance can also be calculated using the formula: R = ρL/A, where ρ is the resistivity of the material, L is the length of the wire, and A is the cross-sectional area of the wire.

Since the wires are made of the same material and have the same thickness, their cross-sectional areas will be the same.

Therefore, the only difference between the wires is their length. According to the formula for resistance, the longer wire will have greater resistance.

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