What is the minimum pressing force

Reference no: EM1362411

Q. Suppose a charge starts at rest on an equipotential surface, is moved off that surface, and then is eventually returned to the same surface at rest after a round trip. How much work did it take to do this? Explain.

Q. A person is trying to judge whether a picture (mass = 1.10 kg) is properly positioned by temporarily pressing against the wall. The pressing force is perpendicular to the wall. The coefficient of static friction between the picture and the wall is 0.66. What is the minimum pressing force that must be used?

Reference no: EM1362411

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