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elena-s [515]
3 years ago
15

How much electrical energy is used by a 75 W laptop that is operating for 12minutes?​

Physics
1 answer:
Liono4ka [1.6K]3 years ago
7 0

"1 watt" means 1 joule of energy per second.

75 W means 75 joules/sec .

Energy = (75 Joule/sec) x (12 min) x (60 sec/min)

Energy = (75 x 12 x 60) (Joule-<em>min-sec</em> / <em>sec-min</em>)

<em>Energy = 54,000 Joules</em>

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