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2 years ago

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

Physics

1 answer:

Liono4ka [1.6K]2 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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irakobra [83]

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3 years ago

What was the long-term effect of the Northwest Ordinance of 1787?

victus00 [196]

Answer:

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3 years ago

A yo‑yo with a mass of 0.0800 kg and a rolling radius of =2.70 cm rolls down a string with a linear acceleration of 5.70 m/s2.

N76 [4]

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T = 0.08(9.8-5.7)

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Also, $\tau=Fr$

So,

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3 years ago

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1 year ago

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Hi there!

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