how deep is the earths core?

Answer 1

About 1,800 miles beneath the surface, Earth's internal structure changes abruptly where the solid rock of the mantle meets the swirling molten iron of the outer core.
But the boundary between the core and the mantle may not be as sharply defined as scientists once thought. By analyzing earthquake waves that bounce off the core-mantle boundary, researchers have found evidence of a thin zone where the outermost core is more solid than fluid.

The existence of such "core-rigidity zones" -- small patches of rigid material within the fluid outer core -- has been suggested before, but this report marks the first time scientists have detected one.

Answer 2

Were you to determine the acceleration of mass at the 0.716 location from the very center of our planet, you would find that were a mass able to be released in that location it would exceed the speed of light in one second. In our sun this distance is 400 miles from its center. Beyond this distance there exists nothing by gravitational waves passing through the center of our planet.

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Answer 3

Hi. It is about 4,000 miles to the center of Earth.

Answer 4

The Earth's equatorial radius, or semi-major axis, is the distance from its centre to the equator and equals 6,378.137 km (≈3,963.189 mi; ≈3,443.917 nmi).

Answer 5

1250 miles

Answer 6

to the inner earth core it is ruffly 3160-3954 miles

Answer 7

very very deep mabe about 1 million miles possibly

Answer 8

that is imposible to know as any type of measuring device put in would melt and a computer would be sccrambled due to high heats and gamma radiation

Answer 9

very deep

Answer 10

My tape measure doesn't stretch that far!