please explain the answer, thank you. The Atmos Clock The Atmos clock (the so-ca

Question

please explain the answer, thank you.

The Atmos Clock The Atmos clock (the so-called perpetual motion clock) gets its name from the fact that it runs off pressure variations in the atmosphere, which drive a bellows containing a mixture of gas and liquid ethyl chloride. Because the power to drive these clocks is so limited, they must be very efficient. In fact, a single 60.0-W lightbulb could power 240 million Atmos clocks simultaneously. Find the amount of energy, in joules, required to run an Atmos clock for one day.

Explanation / Answer

1. Calculate number of seconds in one day T=60*60*24=86400 sec 2. Energy required by 1 bulb during one day E=60watt*86400sec=5.184e6 Jouls 3. this energy can supply 240e6 clocks, so one clock requires 5.184e6/240e6=2.16e-2 J

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