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kupik [55]
3 years ago
14

If you exert a force of 10.0 N to lift a box a distance of 0.75 m, how much work do you do?

Physics
1 answer:
Bas_tet [7]3 years ago
7 0

Answer:

<h2>7.5 J</h2>

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

workdone = 10 × 0.75

We have the final answer as

<h3>7.5 J</h3>

Hope this helps you

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<h3>Answer:</h3>

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<h3>Explanation:</h3>

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A silk tablecloth will have a fairly slippery surface, so there is not much friction to cause tableware to be accelerated.

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Sound waves must have intensity if a person is to hear them.<br> a. True<br> b. False
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A falling stone is at a certain instant 90 feet above the ground. two seconds later it is only 10 feet above the ground. if it w
choli [55]

The equation relevant to this is:

S(t) = So + Vot - At²/2 <span>

</span>

<span>Therefore we can create two equations:
<span>S(t) = 90 = So - 4t - 16.1t²                                      --> eqtn  1</span>
<span>S(t+2) = 10 = So - 4(t+2) - 16.1(t+2)²                     --> eqtn 2</span>

</span>

<span>Expanding eqtn 2:
10 = So - 4t - 8 - 16.1(t² + 4t + 4) 
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 <span>
Subtracting eqtn 1 by eqtn 3:</span>

 90 = So - 4t - 16.1t² 

82.4 = So - 68.4t - 16.1t²

 

=> 7.6 = 64.4t

t = 0.118 s

 

Therefore calculating for initial height So:<span>

<span>82.4 = So - 68.4(0.118) - 16.1(0.118)²

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A horizontal line on a velocity/time graph shows ____ acceleration.
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Answer:

Zero (0)

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