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belka [17]
3 years ago
13

Calculate the speed of magnetic field rotation in an ac machine with 4 poles operating at the frequency of 60 hz.

Physics
1 answer:
geniusboy [140]3 years ago
4 0
I think the answer is 15hz
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What is carbon dioxide?
Bezzdna [24]

Answer:

acidic colorless gas

Explanation:

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2 years ago
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an ice sheet 5m thick covers a lake that is 20m deep. at what is the temperature of the water at the bottom of the lake?
muminat

Answer:

4°C

Explanation:

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How is social media changing the world as we know it?
Vika [28.1K]

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what they said is correct

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2 years ago
The relative humidity would be ________% if the actual water vapor in the air was 4 grams per cubic meter, the air's capacity to
AveGali [126]

Answer:

50%

Explanation:

Humidity is the amount water vapor present in the atmosphere.

Relative humidity is defined as the ratio of partial water vapor present in air to the actual water vapor at a particular temperature. It is expressed in percentage and the higher the percentage RH, the more the saturated water vapor present in the atmosphere and vice versa.

It is expressed mathematically as shown;

RH = actual water vapor in air/saturated water vapor × 100%

If the actual water vapor in the air was 4 grams per cubic meter and the air's capacity to hold water vapor was 8 grams per cubic meter

Actual water vapor = 4g/cm³

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RH = 50%

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3 years ago
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