Q:

How fast does the Earth spin?

A:

Quick Answer

The Earth rotates at about 1037 miles per hour at the equator, and the speed at the North Pole and South Pole is near zero. The speed of the Earth's rotation increases when approaching the equator and decreases toward the poles.

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Full Answer

The circumference of the Earth is about 24,901 miles along the equator, which explains why one full revolution of the Earth takes approximately 24 hours. The speed difference between the poles and the equator creates the Coriolis effect, which has an effect on Earth's weather. The Coriolis effect determines whether storms rotate clockwise or counter-clockwise. Earthquakes, storms and tides can increase or decrease Earth's rotation slightly.

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Related Questions

  • Q:

    Why does the Earth spin on its axis?

    A:

    Earth spins on its axis due to the conservation of angular momentum. When two objects collide, unless they hit exactly head on, spin will be introduced to the system.

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  • Q:

    How many square miles is the Earth?

    A:

    The Earth's total surface area is nearly 197 million square miles. Approximately 71 percent of the Earth's surface area is covered in water, and the remaining 29 percent is land. The Earth's total land surface area is about 57 million square miles.

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  • Q:

    What is the size of Earth?

    A:

    The Earth has a mean radius of 3,959 miles. Its equatorial diameter is just over twice that, at 7,926 miles. This figure is somewhat higher than double the mean radius, owing to the Earth's equatorial bulge, which pushes out the crust at low latitudes.

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  • Q:

    What is the volume of the Earth?

    A:

    The volume of the Earth is 1.44 x 10^21 cubic yards or 2.63 x 10^10 cubic miles. This is found by taking the diameter of the Earth, which is roughly 7,962 miles at the equator, and applying the formula, V = 4/3 pi r^3.

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