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A nonconducting spherical shell of diameter 8 cm has a charge of 1.00 ? 10-8 C distributed uniformly over its surface. It is placed at the origin of a region of space where the electric field is 80 i hat N/C.
a) What is the net electric field inside the nonconducting sherical shell?
b) What is the net electric field at 50 cm on the positive x axis?
The nonconducting spherical shell is replaced with a thin metal spherical shell of diameter 8 cm and a charge of 1.00 ? 10-8 C on its surface.
c) What is the net electric field inside the metal spherical shell?
d) What is the net electric field at 50 cm on the positive x axis?
e) Make a sketch of the charge distribution on the metal spherical shell.
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What will be its length and height at rest
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A loudspeaker of mass 21.0 {rm kg} is suspended a distance of h = 2.40 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has the length of l = 3.90 {rm m}.
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