Find the time constant of discharging a node.

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65. Although we usually write Newton's second law for one-dimensional motion in the form F =ma, which holds when mass is constant, d(mv) a more fundamental version is F = . Consider an object dt whose mass is changing, and use the product rule for derivatives to show that Newton's law then takes the form F dm = ma + v dt

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Chapter 29, Problem 53PQ

To determine

Find the time constant of discharging a node.

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