Mr. Turner is driving through downtown Houston at 35 MPH (15.56 m/s). This is above the posted speed limit and there are cars parked alongside the curb in the lane next to Mr. Turner. Of course, a large delivery truck ahead looks like it is parked and driverless, but the driver's door swings open into the lane ahead of Mr. Turner. Mr. Turner's reaction time is 3/4th's of a second and the stopping distance at his speed is 1.7 meters. The driver exiting the delivery truck is 13.3 meters ahead. Can Mr. Turner stop in time? What is the vehicle's acceleration when the brakes are applied?


How far will the vehicle travel before Mr. Turner engages the brake?


(I need someone to explain this to me)

Answer:

Explanation:

Time taken by sound to come back to surface after reflection from trench

= distance travelled / speed of sound

= 2 x 11000 / 1500

= 14.66 s

In one way , sound will take half the time = 7.33 s .

Answer:

116g

Explanation:

Given parameters:

Mass of A  = 88g

Mass of B₂  = 28g

Unknown:

Mass of AB produced  = ?

Solution:

The reaction expression is given as:

            2A + B₂ →  2AB

According to the law of conservation of matter "matter is neither created nor destroyed but changed from one form to another".

  In retrospect;

      Mass of A + Mass of B₂  =  Mass of AB

  Now insert the parameters and solve;

  Mass of AB  = 88g + 28g  = 116g

Answer:

The gravitational force between two objects is written as:

F = G*m1*m2/r^2

Where:

G = 6.67*10^(-11) m^3/kg*s

m1 and m2 are the masses of the objects.

r is the distance between the objects.

In this case, we know that:

F = 0.0005 N

r = 10m

and because the two spheres are identical, we have that:

m1 = m2 = M

then we have the equation:

0.0005 N = (6.67*10^(-11) m^3/kg*s)*(M^2/(10m)^2)

0.0005 N*(10m)^2/(6.67*10^(-11) m^3/kg*s) = M^2

√( 0.0005 N*(10m)^2/(6.67*10^(-11) m^3/kg*s) ) = M = 27,379.3 kg

The mass of each sphere is 27,379.3 kg

Answer:

looks like law of inertia

Explanation:

Answer:

The focus of Lesson 1 is Newton's first law of motion - sometimes referred to as the law of inertia. Newton's first law of motion is often stated as. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Because mercury freeze in cold temperatures

Answer:

V = 2500V

Explanation:

Given the following data;

Current = 0.5A

Resistance = 5K ohms = 5*10³ = 5000 ohms

To find the voltage;

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

[tex] V = IR[/tex]

Where;

Substituting into the equation, we have;

[tex] V = 0.5 * 5000 [/tex]

V = 2500 V.

Therefore, the voltage needed to pass the current is 2500 volts.

Answer:

the total kinetic and potential energy of its particles

Explanation:

In every object, there are two types of energy which can be found inside them-Kinetic and Potential Energy. For example, a solid object placed on a stationary table has a potential energy due to the vibration of the molecules of the object.

As the object is moved across the table, it has kinetic energy. The combination of both energy is known as thermal energy. An increase in both energy leads to increase in the thermal energy of a given object.

Answer: 10.05m/s²

Explanation:

Force acting on the plane has a magnitude of 1900N.

Mass of plane = 860kg

We then calculate the acceleration which will be:

= 1900 / 860

= 2.21 m/s²

Since acceleration due to gravity is equal to 9.8m/s², then the net acceleration will be:

= ✓(2.21² + 9.8²)

= ✓(4.88 + 96.04)

=✓100.92

= 10.05m/s²

Answer:

Non- examples will include processes that are not involving earthquakes or tectonic plates movements.

Explanation:

Seismology is the scientific study of earthquakes and internal structure of the earth. This study involves geographical distributions , origins, the effects and possible predictions of earthquakes. Seismology study can further include the  movement of Earth's tectonic plates.

Example of seismology is geological surveying.

Answer:

moon by earth is 1.62/s and squre in mathematical terms and earth by moon is the same answer

Compared to the earth, which has a mass of 5.97 into 10 to the power of 24 kilograms, the moon has a mass of 7.35 into 10 to the power of 22 kilograms. The moon is 3.84 into 10 to the power 8 meters away from the earth, but this is from the center, where the earth cannot see it. We have to judge by the moon.

The moon's mass divided by its orbital distance will determine the magnitude of both forces, which will be equal in strength but acting in opposite directions. It is commonplace.

This can be solved within the square as a whole, giving us a result of 19.85 into 10 to the power of 19 newtons. This force will be roughly equivalent to 1.99 into 10 and will have a magnitude of 20 newtons. This will turn out to be the solution to the issue.

The earth will be the moon, and both forces will be moving in the same direction. The force on the moon and the force on earth are the same.

Therefore, The moon's mass is 7.35 into 10 to the power 22, the earth's g square mass is 5.97 into 10 to the power 24, and the r value is 3.84 into 10 to the power 8. Moon by earth is 1.62/s.

Learn more about gravitational force here:

https://brainly.com/question/12528243

#SPJ2

Answer:

Chemical reactions always involve changes in energy.

Energy is released in chemical reactions​

Explanation:

Chemical reactions involves the formation and breaking of bonds by the combination of atoms in a system.

Answer:

k = 25.18 N/m

Explanation:

Simple Harmonic Oscillator

It consists of a weight attached to one end of a spring being allowed to move forth and back.

If m is the mass of the weight and k is the constant of the spring, the period of the oscillation is given by:

[tex]\displaystyle T=2\pi {\sqrt {\frac {m}{k}}}[/tex]

If the period is known, we can find the value of the constant by solving for k:

[tex]\displaystyle k=m\left(\frac{2\pi}{T}\right)^2[/tex]

Substituting the given values m=5 Kg and T=2.8 seconds:

[tex]\displaystyle k=5 \left(\frac{2\pi}{2.8}\right)^2[/tex]

k = 25.18 N/m

Answer: question 1 , would be one question 2 , would be 1 joule and number three would be number one and number four would be , power and last one would be, number two

Explanation: sorry if its wrong

Answer:

it started to move a 1 second

Answer:

at one second :p

Explanation:

Answer: The first one

Explanation: My best guess is in the pic attached. Hope this helps.

Answer:

b

e

Explanation:

Answer: Does this help???

The centripetal force is required.

The centripetal force is 243.47 N.

m = Mass of runner = 78.6 kg

v = Velocity of runner = 8.8 m/s

r = Radius = 25 m

Centripetal force is given by

[tex]F_c=\dfrac{mv^2}{r}\\\Rightarrow F_c=\dfrac{78.6\times 8.8^2}{25}\\\Rightarrow F_c=243.47\ \text{N}[/tex]

The centripetal force is 243.47 N.

Learn more:

https://brainly.com/question/11324711

https://brainly.com/question/1869806

Answer:

mass and speed

Explanation:

Kinetic energy increases as mass and speed are increased

Answer:

The force will have to increase

Explanation:

Since Juan has upgraded from a sports car to a large truck, based on Newton's second law of motion, the force needed to keep the truck going at the same speed will have to increase.

 According to Newton's second law "the force on an object is equal to the product of its mass and acceleration".

       Force  = mass x acceleration

A truck has a larger mass compared to a sports car.

By virtue of this, to make sure both automobiles attain the same speed, the force powering them to accelerate must be the same.

 Therefore, the force from the engine must increase.

Answer:

respiratory = nose

circulatory = heart

digestive = mouth

nervous = brain

The speed of the wave is 14.4 m/s.

Speed is the rate of change of distance.

To calculate the speed of the wave, we apply the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the speed of the wave is 14.4 m/s.

Learn more about speed here: https://brainly.com/question/4931057

no clue what the question is but pop off i guess

Answer: (from top to bottom)

350 N, 80 kg, 10 m/s^2, 80 kg, -15 m/s^2, -3000 N

Explanation:

Force = Mass*Acceleration (aka F = ma)

Using algebra, you can find the variables/unknown values.

Answer:

It depends on

1 The energy of the body

2 Motion

Explanation:

✌♥️✌♥️

Answer:

B

Explanation:

Since

K.E = 1/2 mv^2

P.E = mgh

Answer: They both do the same amount of work but Tow A has more power

Explanation:

Answer:

Shooting guard I think

Explanation:

Answer:

the center

Explanation:

i had it on my test

Explanation:

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Answer:

I think its frequency

Explanation:

Answer:

its B or A thank me please