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AnnyKZ [126]
3 years ago
9

A person must pull a rope 20 meters with a force of 200 N what is the work input?

Physics
1 answer:
tatiyna3 years ago
4 0
Work done = force * distance
work done = 200 * 20
work done = 4000J
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Explanation:

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Answer:

Change in electric potential energy ∆E = 365.72 kJ

Explanation:

Electric potential energy can be defined mathematically as:

E = kq1q2/r ....1

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q2 = charge 2 = -5.0C

∆r = change in distance between the charges

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r2 = 160km = 160000m

From equation 1

∆E = kq1q2 (1/r2 -1/r1) ......2

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∆E = 365.72 × 10^3 J

∆E = 365.72 kJ

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3 years ago
How long does it take to change a flat plain into mountains?
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3 0
3 years ago
Read 2 more answers
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