Science, asked by nisrin8, 11 months ago

how does a wind vane help us in knowing the speed of the air​

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Answered by shanmukh51
2

Answer:

please mark it as brainlist answer

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Answered by PremChoudhary
1

Answer:

When the wind is blowing, the wind vane points into the wind. ... A cup anemometer is a common tool to measure wind speed. The cups catch the wind and produce pressure difference inside and outside the cup. The pressure difference, along with the force of the wind, causes the cups to rotate.

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