Physics, 01.03.2021 19:40 chassidytjtrimb
A 20 watt light bulb uses 20 joules of energy every second. A person expends 50 watts of energy per stair when climbing up stairs. Calculate how long you could light the light bulb if the energy used to climb 20 stairs were converted to electricity.
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A 20 watt light bulb uses 20 joules of energy every second. A person expends 50 watts of energy per...
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