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This is the Earths radius. The Earth has a radius of 6371km on average. It is a slightly 'squashed sphere' though, due to its spin pushing out at the equator. Its polar radius is 6357km, while its radius at the equator is 6378km

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13y ago
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12y ago

The distance from side to side through the center of the Earth is properly called its diameter.

The Earth is not a sphere, but has a slight bulge at the Equator. Thus, the side-to-side is different from top-to-bottom. This shape is call ellipsoid (shaped like an ellipse), ovoid (egg-shaped), or geoid (earth-shaped).

The diameter of the Earth at the equator is 7926.41 miles (12,756.32 km).

The diameter of the Earth across the poles is 7901 miles (12,715.43 km).

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10y ago

That's the Earth's radius. It's about 6378 kilometers at the equator.

That's 3963 miles.

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Q: What is the distance from the of Earth surface of the to the center?
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Why is the weight on earth different than the weight on the moon?

-- Your weight depends on the mass of the other mass to which you are gravitationallyattracted, and also on your distance from its center.-- The mass of the moon is much less than the mass of the Earth.-- The moon's surface is much closer to its center than the Earth's surface is to its center.


What force of gravity exists at two times the Earth's radius?

Assuming you mean from the center of the Earth: 1/22 = 1/4, that is, 1/4 the gravity at the Earth's surface. If you mean two Earth radii from the surface, then the distance from the Earth's center would be 3 times as much, and the force would be 1/9, compared to the Earth's surface. _______________________________ The force of gravity changes with the reciprocal of the square of the distance. So if the distance is increased by a factor of 2, the force will DECREASE by a factor of two squared, or 4. So, double the distance = one-quarter the force.


How does acceleration due to gravity changes with altitude?

The acceleration of gravity ... on or near the Earth, for example ... is inversely proportional to the square of the distance from the center of the Earth. So it diminishes as you rise from the surface. When you have ascended to an altitude of one Earth radius ... about 4,000 miles ... your distance from the center is then two Earth radii, so the acceleration of gravity has shrunk to 1/4 of its value on the surface.


Which is hotter the center of the earth or the surface of the sun?

the sun


What is the average distance from the center of earth to the center of the moon?

km384,000Average Earth to Moon Distance: 384,403 km Equatorial Radius of the Earth: 6,357 kmEquatorial Radius of the Moon: 1,737 kmTotal: 392,497 km

Related questions

What is the distance from the surface of the earth to the center in km?

The average distance from Earth's surface at the equator its center is about 6378 km. The distance from near the north and south poles to the center is somewhat less.


What is the distance through the earth's center from surface to surface?

7,000 km


What is the field strength at a distance one Earth radius beyond the surface?

I assume you mean, of the gravitational field? The gravitational field is inversely proportional to the square of the distance. At a distance of 1 Earth radius, the distance from the center of the Earth is twice the distance at the Earth's surface; thus, the field strength is 1/4 what it is on the surface. If at the surface the field strength is about 9.8 meters per second square, divide that by 4 to get the field strength at a distance of one Earth radius from the surface.I assume you mean, of the gravitational field? The gravitational field is inversely proportional to the square of the distance. At a distance of 1 Earth radius, the distance from the center of the Earth is twice the distance at the Earth's surface; thus, the field strength is 1/4 what it is on the surface. If at the surface the field strength is about 9.8 meters per second square, divide that by 4 to get the field strength at a distance of one Earth radius from the surface.I assume you mean, of the gravitational field? The gravitational field is inversely proportional to the square of the distance. At a distance of 1 Earth radius, the distance from the center of the Earth is twice the distance at the Earth's surface; thus, the field strength is 1/4 what it is on the surface. If at the surface the field strength is about 9.8 meters per second square, divide that by 4 to get the field strength at a distance of one Earth radius from the surface.I assume you mean, of the gravitational field? The gravitational field is inversely proportional to the square of the distance. At a distance of 1 Earth radius, the distance from the center of the Earth is twice the distance at the Earth's surface; thus, the field strength is 1/4 what it is on the surface. If at the surface the field strength is about 9.8 meters per second square, divide that by 4 to get the field strength at a distance of one Earth radius from the surface.


What is the distance from the earth's surface to earth's center?

That's the Earth's radius. It's about 6378 kilometers at the equator. That's 3963 miles.


What is the distance from the surface to the center of the earth?

That's the Earth's radius. It's about 6378 kilometers at the equator. That's 3963 miles.


The distance from side to side through the center of the earth?

diameter


What is the distance from the surface of earth to the center is about?

Since the earth is not perfectly round, distances vary slightly. From the poles to the center its about 3950 miles. From the equator to the center its about 3960 miles The correct answer is the earth has an equitoral circumference of ~ 24,900 mi and diameter of ~ 7,926mi. With these facts we devise the surface to core distance to be ~3963mi at the equator and 3950mi from the poles.


Why is the weight on earth different than the weight on the moon?

-- Your weight depends on the mass of the other mass to which you are gravitationallyattracted, and also on your distance from its center.-- The mass of the moon is much less than the mass of the Earth.-- The moon's surface is much closer to its center than the Earth's surface is to its center.


What is the distance from earths surface to the center of earth?

That's the Earth's radius. It's about 6378 kilometers at the equator. That's 3963 miles.


If your mass on earth is m your mass at a distance of 3 earth radii from the center of the earth will be while your weight will be?

-- If your mass is 'm', then your mass is 'm', regardless of whether you're on the earth,2 earth radii out in space, or on the moon. Mass doesn't change.-- On the surface, your distance from the center of the earth is 1 earth radius. Weight isinversely proportional to the square of the distance from the center of the earth, so at adistance of 3 earth radii from the center, your weight is 1/32 = 1/9th of your weight on thesurface. If your mass is 'm' then your weight on the surface is mg = 9.8m newtons, and at3 earth radii from the center it's 1.089m newtons (rounded).


What is the altitude made of?

The earth is an regular surface in average with a great number of small irregularities (small with respect to the global earth surface). The geometrical center of earth is obtained by approximating the earth surface with the best fitting rotational ellipsoid, with a circular section corresponding to the equator and a minor axis joining the geographical poles. The so called "sea level" is defined as the average distance from the geometrical center of earth of all the points on the sea surface. The altitude of a single earth point is the difference between the distance from the earth center of that point and the conventional sea level.


What force of gravity exists at two times the Earth's radius?

Assuming you mean from the center of the Earth: 1/22 = 1/4, that is, 1/4 the gravity at the Earth's surface. If you mean two Earth radii from the surface, then the distance from the Earth's center would be 3 times as much, and the force would be 1/9, compared to the Earth's surface. _______________________________ The force of gravity changes with the reciprocal of the square of the distance. So if the distance is increased by a factor of 2, the force will DECREASE by a factor of two squared, or 4. So, double the distance = one-quarter the force.