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stich3 [128]
3 years ago
12

A car uses 2500 joules in 25 seconds. find power

Physics
2 answers:
irina1246 [14]3 years ago
7 0

Answer:

100 W

Explanation:

The power can be defined as energy change / time taken

Or

Energy used/time taken

So in this case you get,

Power = 2500/25 = 100 W

Katena32 [7]3 years ago
5 0

Answer:

power = 100 watts

Explanation:

Power is said to be the rate at which work is done. Power is the work done or energy used per unit time. Mathematically, it can be defined as the work done per unit time.

Power = work/time

Power = w/t

Work  done is measured in joules and time is measured in seconds.

Power is measured in joules per seconds or watts.

power = w/t

w = 2500 joules

t = 25 seconds

power =  2500/25

power = 100 watts

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the mechanical advantage measures how much the system multiplies the input force to get the output.

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A coat rack weighs 65.0 lbs when it is filled with winter coats and 40.0 lbs when it is empty. The base of the coat rack has an
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0.056 psi more pressure is exerted by filled coat rack than an empty coat rack.

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