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What is the power of a hair dryer if it uses 72,000 joules of energy in 60.0 seconds?


Sagot :

Power = energy/time

So by using this equation:

72000/60 = 1200 Watts

tadvisohil886
Power = work done / time consumed

= 72000/60
= 1200 J/s

= 1200 watt
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