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NARA [144]
3 years ago
7

An electric heater draws 12 A from a 120 V power source. How much powe heater dissipate? (a) 10 W (b) 1200 W (c) 1440 W (d) 17,2

80 W
Engineering
1 answer:
natima [27]3 years ago
5 0

Answer:

c) 1440 W

Explanation:

P = V*i = (12A)*(120V) = 1440W

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A walrus loses heat by conduction through its blubber at the rate of 220 W when immersed in −1.00°C water. Its internal core tem
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Answer:

The average thickness of the blubber is<u> 0.077 m</u>

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Here, we want to calculate the average thickness of the Walrus blubber.

We employ a mathematical formula to calculate this;

The rate of heat transfer(H) through the Walrus blubber = dQ/dT = KA(T2-T1)/L

Where dQ is the change in amount of heat transferred

dT is the temperature gradient(change in temperature) i.e T2-T1

dQ/dT = 220 W

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L is ?

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