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The answer is yes, but it depends where on the world you're talking about. Thus, it's kind of a trick question because the speed at which the world rotates is different depending where you are: the closer to the equator, the faster the world is turning.

The speed of sounds is 1,236 km/hr.

At the equator, the Earth is rotating at 1,674 km/hr (faster than the speed of sound). At the Kennedy Space Center (28.59 degrees above the equator), the rotational speed is only 1,470.23 km/hr (still faster than the speed of sound).

Since the tangential speed of Earth's rotation at a point on Earth can be approximated by multiplying the speed at the equator by the cosine of the latitude, we could figure out where on Earth the rotation matches the speed of sound (1,236 km/hr).

Thus doing the math, we need to figure out what the variable x is in the following equation; the variable x represents the latitude at which the rotational speed matches the speed of sound:

1,674 km/hr * cos(x) = 1,236 km/hr

Simplying: cos(x) = 0.7384

Solving for x: x = 42.4 degrees.

So the specific answer to your question is that the world does rotate at the speed of sound, but only at approximately 42.4 degrees north or south of the equator.

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13y ago

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