A ballet student with her arms and a leg extended spins with an initial rotational speed of 0.90rev/s . As she draws her arms an
1 answer:
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Answer:
a) E = 0
b)
Explanation:
The electric field for all points outside the spherical shell is given as follows;
a)
From which we have;
E = 0/A = 0
E = 0
b)
By Gauss theorem, we have;
Therefore, we get;
The electrical field outside the spherical shell
Therefore, we have;