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notka56 [123]
2 years ago
14

If a person does 20 J of work on a book in 10 seconds, how powerful was the person while doing the work?

Physics
1 answer:
Korolek [52]2 years ago
4 0

Answer:

2 W

Explanation:

P = W/t

= 20 J / 10 s

= 2 W

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A camcorder has a power rating of 15 watts. If the output voltage from its battery is 5 volts, what current does it use?
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Formula

W = E * I

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