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8. (3 pts} The voltage E in a certain electric circuit carrying alternating current ca n, under idealized circumstances, be described by E = Emax

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8. (3 pts} The voltage E in a certain electric circuit carrying alternating current ca n, under idealized circumstances, be described by E = Emax Sin(120:"tt + 2.1) (angle in radians). If the maximum voltage Emax is 24 V: What is the voltage at time t = 0.21 seconds? Round to one decimal and include units

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