A penny sits on a rotating disk that rotates once every 0.9, Ask an Expert

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Q1. A penny sits on a rotating disk that rotates once every 0.9 s. The coefficients of static and kinetic friction between the penny and disk are 0.58 and 0.48, respectively. For the penny to not slide, what is its largest distance from the center of the disk?

Q2. At the instant when the current in an inductor is increasing at a rate of 7.00×10-2, the magnitude of the self-induced emf is 1.00×10-2. Find the inductance of the inductor.

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Category:- Physics
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