Part A A uniform, spherical, 1200.0 kg shell has a radius of 5.00 m. Find the gr

Question

Part A A uniform, spherical, 1200.0 kg shell has a radius of 5.00 m. Find the gravitational force this shell exerts on a 2.10 kg point mass placed at the distance 5.05 m from the center of the shell. Submit My Answers Give Up Part B Find the gravitational force this shell exerts on a 2.10 kg point mass placed at the distance 4.97 m from the center of the shell. Submit My Answers Give Up Part C Find the gravitational force this shell exerts on a 2.10 kg point mass placed at the distance 2.74 m from the center of the shell. Submit My Answers Give Up

Explanation / Answer

(A) gravitational for r > R ,

g = G M / r^2

F = m g = G M m / r^2

F = (6.67 x 10^-11)(1200)(2.10) / 5.05^2

F = 5.556 x 10^-9 N

(B) field inside the shell,

g = 0

so Force = 0

(C) point is inside the shell, so F = 0

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