reterrickeyfox205
20.06.2020 •
Physics
A ring of radius 2.50 cm has a uniform linear charge density of 15.0 nC/m. It is observed that when a point charge Q is placed at the center of the ring, the electric field at a point at the central axis of the ring at a distance of 12.0 cm from its center is zero. What is the value of Q?
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Ответ:
What is the “price” that you pay for using less force? The price that you pay for using less force is having to do more work.
dont ask this is what i looked up and found