Question

The earth is said to be a sphere with a radius of 6370 km. Inside the earth there is a nucleus and its density is 11.0g/cm^3 and radius is 3000Km, the rest of earth is a mantle (density is 5.00g/cm^3).

The core of the nucleus and mantle coincides with the mass center of the earth. In this case, calculate the gravity(received from the earth) acting on particles with a mass of 1.00g as a function of distance from the center of the earth.

Answer #1

A uniform solid sphere of radius R = 3.6 km produces a
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Calculate, using Newton's law of gravity, the size of the force
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a) find the magnitude of the electrical field
E1 inside the sphere (r < R) at the
distance r1 = 3.0 cm from the center.
b) find the magnitude of the electric field E2
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Planets are not uniform inside. Normally, they are densest at
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Model a spherically symmetric planet, with the same radius as the
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A plastic sphere with a radius of 4 cm is surrounded by a
concentric metal shell of 7 cm inside radius, and 10 cm outside
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What is the electric potential relative to infinity at a
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A
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A nonconducting solid sphere of radius 9.10 cm has a uniform
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(a) What is the sphere's volume charge density?
µC/m3
(b) Find the magnitude of the electric field at a distance of 5.00
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Earth inner solid core, which has a radius of 1278km and is a
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An isolated charged conducting sphere has a radius R = 11.0 cm.
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(a) What is its surface charge density (in µC/m2)?
___ µC/m2
(b)
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____ pF
(c) What If? A larger sphere of radius 23.0 cm
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