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Q: What is the total depth of the Earth from the surface to center (radius)?
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What is the depth of earth surface in kilometers?

A surface has area but no depth. Therefore the Earth's Surface has a depth of 0.0 kilometers.


What depth from surface of earth is value of acceleration due to gravity one fourth the value at the earth surface?

The force of gravity is proportional to the masses of the two objects and inversely proportional to the square of the distance between them. As a result, a gravity of one fourth that on the surface of the Earth would be observable at an altitude equal to the radius of the Earth, i.e. 6400 km. Note: This is up, in the air, not down, into the Earth. This distance is in outer space.In the other direction, the force of gravity gets smaller as one goes deeper into the earth. This is because the mass outside your current radius (as you descend) does not contribute. The mass inside your current radius is proportional to the cube of the radius. Gravity is proportional to this mass divided by the square of the radius. Therefore, gravity decreases linearly with the radius. So the acceleration of gravity is equal to one fourth its value at the earth's surface at one fourth of the earth's radius, or a depth of approximately 4800 km.


What is the depth below the surface in cm for the crust?

On the Earth's surface, the depth is between 8-64 kilometers.


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.


What is the thickness or the depth of the Earth's surface?

none of your business


What percentage of earth is made of rivers?

A negligible percentage, significantly less than 1%. Rivers occur only of the surface of the earth, around 70% of which is oceans. Rivers occupy a tine proportion of the remaining surface. Compared to the radius of the earth their depth is negligible so that they occupy a minuscule proportion of the earth's volume.


What is the relationship between the density of earth materials and depth below the surface of the earth?

As the depth increases, the density increases also.


What is the depth of the center of the earth?

about 4000 miles


Why cannot you go to the centre of the earth?

The radius of the earth is more than 6000km,to reach the centre of the earth we have to dig a whole to this depth which is impossible


Does the pressure inside of the earth increase with increased depth from the surface?

Absolutely.


Rock can melt at a depth of about what degree below Earth's surface?

100km


Which is furthest innercore or outercore?

Earth's inner core is farther from the surface than its outer core. The molten liquid outer core extends from about 1,800 to 3,200 miles below Earth's surface, and the solid inner core extends from about 3,200 miles to the center of Earth, at a depth of about 4,000 miles.