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eduard
3 years ago
6

A 4-watt night light is left on for 8 hours each night. How much work dies it do per night

Physics
1 answer:
ki77a [65]3 years ago
4 0

The light bulb doesn't do any "work" ... it doesn't exert force,
or maintain a force through a distance.  It does, however,
dissipate energy, in the form of heat and light.

The quantity of energy that it dissipates is ...

         (4 watts) x (8 hours) x (3600 sec/hour) x (1 joule/watt-sec)

     =  (4 x 8 x 3600) joules  =  115,200 joules .

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