The voltage v in volts in an electrical outlet is given as


The voltage, V , in volts, in an electrical outlet is given as a function of time, t, in seconds, by the function V = 156 cos(120πt).

(a) Give an expression for the rate of change of voltage with respect to time.

(b) Is the rate of change ever zero? Explain.

(c) What is the maximum value of the rate of change?

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Physics: The voltage v in volts in an electrical outlet is given as
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