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Physics problem

This is an interesting problem I found.
It's a beginner physics problem….

(sorry for bad formatting)

A small insulating ball of mass $$m=1.0 mg$$ and charge $$q = 2.0\cdot 10^{-8}C$$ distributed uniformly throughout its volume, hangs from an insulating thread that makes a $$30^{\circ}$$ angle with a vertical, uniformly charged nonconducting sheet. If the ball is in equilibrium, what is the charge density on the vertical sheet?

Note by Sameer L.
2 years, 8 months ago

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