2 years ago

A man pushes a crate along a factory floor by exerting a force of 55 N. If

Physics

1 answer:

nika2105 [10]2 years ago

7 0

Answer:

it's 220 J

the second one

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Explanation:

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Here we have

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$E=(13.6) (\frac{1}{2^2}-\frac{1}{3^2})=1.9 eV$

Converting into Joules,

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