The speed of rotation of earth is?
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13.5 Km/sec
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32 Km/sec
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9.72 Km/sec
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None of these.
D
Correct answer
Explanation
The earth rotates on its axis at a speed of approximately 1,670 km/h at the equator, or about 0.46 km/sec, which does not match any of the provided numerical options in kilometers per second. Therefore, none of these is correct.