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aleksley [76]
2 years ago
5

What is the horse power of an electric motor which can do by 1250 joule of work in 5 seconds​

Physics
1 answer:
Ksju [112]2 years ago
5 0
1250 J in 5 sec= 250 Joule(s) per second (1250/5 0

250 Joules per second = 250 Watts ( 1J/s = 1 Watt per definition)

250 Watts output = 250/0.65 efficiency = 384 Watts input

1 Horsepower = 732 Watts

Motors 1 Horsepower and under are made in certain step sizes like

3/4 , 1/2 , 1/3, 1/4, 1/16 1/20 of a Horsepower.

3/4 Horsepower is 549 Watts

1/2 Horsepower is 366 Watts

so you need to 3/4 horsepower motor to achieve 1250 J of work in 5 seconds.
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Answer:

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Buoyancy explains it all!!

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According to the principle of flotation:

<em>"when a body is totally or partially immersed in liquid it experiences an upthrust which is equal to the volume of fluid displaced"</em>

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Why does Quito, Equator has very little changes to the daylight hours<br> throughout the year?
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4 0
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s344n2d4d5 [400]
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5 0
3 years ago
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On Earth, that mass weighs  4,900,000 newtons .

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4 years ago
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