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3 years ago

How much time is needed to produce 720 Joules of work if 90 watts of power is used?

Physics

1 answer:

Tems11 [23]3 years ago

3 0

Answer:

8 seconds

Explanation:

power (P) is defined as the rate at which work is done.

power is measured in Watts (W) , when the work done is measured in Joules (J) and time in seconds

by the definition of power,

$Power=\frac{work.done}{time.taken} \\ \\ time.taken=\frac{work.done}{power}\\=\frac{720J }{90W} \\ \\ =8 s$

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3 years ago

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