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Nutka1998 [239]
3 years ago
15

does it require more energy to brew 12 cups with the coffee-maker or reheat 12 cups of coffee in a microwave?

Physics
2 answers:
Leni [432]3 years ago
6 0
It would take more energy to reheat 12 cups because only 1 or 2 cups can fit in a microwave rather an than brewing 12 cups in a coffee pot.


Ber [7]3 years ago
5 0
It would take make more energy to brew 12 cups in the coffee-maker.
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When is the average velocity of an object equal to the instantaneous velocity?
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3 years ago
An electric pump rated 1.5 KW lifts 200kg of water through a vertical height of 6m in 10 secs: way is the efficiency of the pump
ruslelena [56]

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80%

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To calculate efficiency we need to find power output of electric pump.

We can use,

Work done = Energy change

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Work done per second = Power

Therefore, Power = Energy change per second

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Now use the first equation to find efficiency,

Efficiency = \frac{1.2}{1.5} × 100%

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3 years ago
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Explanation:

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