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3 years ago

What are some real life examples of Newtons 3 laws of motion?

1 answer:

7 0

1st - if you slide a book across a table, it will eventually slow to a stop because of the opposite force friction is exerting or it will come to a stop once it hits the wall.
2nd - It's easier to push an empty box than a box thats halfway full because the empty box has less mass. So more force is needed to move the filled box.
3rd - When jumping off a diving board, the springboard is pushed down by your body weight and then it springs back up, pushing you into the air.

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A vessel containing 200 ml hydrogen gas at pressure 500torr at temperature 10 degree C.Find its volume when pressure increased t

Margaret [11]

Answer:

When the pressure and the temperature are increased the volume is 285.7 ml.

Explanation:

We can find the new volume by using the Ideal Gas Law:

$PV = nRT$

Where:

P: is the pressure

V: is the volume

n: is the number of moles

R: is the gas constant

T: is the temperature

Initially, when V₁ = 200 ml, P₁ = 500 torr and T₁ = 10 °C, we have:

$nR = \frac{P_{1}V_{1}}{T_{1}}$ (1)

And finally, when P₂ = 700 torr and T₂ = 20 °C, we have:

$nR = \frac{P_{2}V_{2}}{T_{2}}$ (2)

By equating (1) with (2):

$\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}$

$V_{2} = \frac{P_{1}V_{1}T_{2}}{T_{1}P_{2}} = \frac{500 torr*200 ml*20 ^{\circ} C}{10 ^{\circ} C*700 torr} = 285.7 ml$

Therefore, when the pressure and the temperature are increased the volume is 285.7 ml.

I hope it helps you!

3 0

3 years ago

Three students each hold basketballs with the same masses at varying heights. One basketball is held 2 feet above the ground. An

Advocard [28]

The Basketball with the greatest gravitational potential energy is : Basketball 4 feet above the ground ( c )

<u>Given data :</u>

masses = constant

H₁ = 2 ft

H₂ = 3 ft

H₃ = 4 ft

g = 9.81 m/s²

<h3><u>Procedure to determine the basketball with the greatest gravitational P.E </u></h3>

we will apply the equation below

Gravitational potential energy ( U ) = mgh

For ball 1

U = 2 * 9.81 = 19.62

For ball 2

U = 3 * 9.81 = 29.43

For ball 3

U = 4 * 9.81 = 39.24

From the calculations the basketball with the greatest gravitational potential energy is the basketball at 4ft above the ground

Learn more about gravitational potential energy : brainly.com/question/15896499

4 0

3 years ago

Define instantaneous velocity

Anon25 [30]

Answer:

<h2><em><u>Instantaneous Velocity. The instantaneous velocity of an object is the limit of the average velocity as the elapsed time approaches zero, or the derivative of x with respect to t: v(t)=ddtx(t). v ( t ) = d d t x ( t ) . Like average velocity, instantaneous velocity is a vector with dimension of length per time.</u></em></h2>

3 0

4 years ago

What is the difference between continuous and a discontinuous spectrum?

aleksklad [387]

A continuous spectrum contains all the wavelengths

A discontinuous spectrum has strips of specific colors and can be used to identify the elements making it.

hope this helps

5 0

3 years ago

Which of the following would not be found on the electromagnetic spectrum?

kondor19780726 [428]

All wavelengths and frequencies of electromagnetic radiation ...
including visible light ... are features of the electromagnetic spectrum.

Sound waves have nothing to do with the electromagnetic spectrum.

8 0

3 years ago