The speed of sound refers to the velocity at which sound waves propagate through a medium, such as air or water. In the case of air, the speed of sound is approximately 343 meters per second (or about 767 miles per hour).
On the other hand, the speed at which the Earth rotates on its axis is much slower. The Earth completes one full rotation in approximately 24 hours, which corresponds to a rotational speed of about 1,670 kilometers per hour (or 1,040 miles per hour) at the equator.
The reason why the speed of sound is faster than the speed at which the Earth rotates is due to the fundamental differences in the nature of these phenomena. The speed of sound primarily depends on the properties of the medium through which it travels, such as its density, temperature, and elasticity. In the case of air, these factors determine how fast sound waves can propagate.
On the other hand, the speed of the Earth's rotation is determined by its size, shape, and rotational period. The Earth's rotation is a physical process that involves the spinning of the entire planet on its axis, rather than the propagation of waves through a medium.
Therefore, the speed of sound and the speed of the Earth's rotation are unrelated phenomena with different underlying causes, and it is normal for the speed of sound to be faster than the speed at which the Earth rotates.