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RUDIKE [14]
3 years ago
12

From what height should you drop a ball if you want it to hit the ground in exactly 3 seconds?

Physics
1 answer:
Trava [24]3 years ago
5 0

Answer:

44.1 m

Explanation:

Given:

v₀ = 0 m/s

a = -9.8 m/s²

t = 3 s

Find: Δy

Δy = v₀ t + ½ at²

Δy = (0 m/s) (3 s) + ½ (-9.8 m/s²) (3 s)²

Δy = -44.1 m

The ball should be dropped from 44.1 meters.

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29.4 N/m

0.1  

Explanation:

a) From the restoring Force we know that :  

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l=x1-(F_1/k)

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Plugging known infromation to get :

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= 0.1  

 

3 0
3 years ago
If the temperature of a gas is increased by 10x, what will happen to the volume?
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The volume of a gas will increase by ten times if the temperature is increased by ten times.

<h3>Relationship between the volume of a gas and temperature</h3>

The relationship between the volume of a gas and its temperature is explained in Charles' law of gases which states that:

  • The volume of a fixed mass of gas is directly proportional to its temperature provided the pressure of the gas is kept constant.

This means that if the temperature of a gas is increased by any given factor, the volume increases by the same factor proportionally.

Therefore, if the volume of a gas will increase by ten times if the temperature is increased by ten times.

Learn more about gas volume and temperature at: brainly.com/question/18706379

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