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How many kilowatt hours does it take to lift an apple that weighs 100g 1 meter.(use 9.8 kg

m/s2 for the force of gravity)

User HPJAJ
by
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1 Answer

5 votes

Answer:

The answer to your question is Power = 0.98 W or 9.8 x 10⁻⁴ kW

Step-by-step explanation:

Data

Power = ?

mass = 100 g = 0.1 kg

distance = 1 m

gravity = 9.8 m/s²

Formula

Power = Work / time

Process

1.- Calculate the Work

Work = Force x distance

Force = mass x gravity

Work = mass x gravity x distance

Work = (0.1 kg)(9,8)(1)

Work = 0.98 J

2.- Calculate the power

Power = 0.98 J / 1 h

Power = 0.98 W or 9.8 x 10⁻⁴ kW

User Peter Nunn
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