The period of a mass-spring oscillator is 2.78 s. Every time the oscillator completes a full period, the amplitude of the oscillation gets reduced to 92.7 percent of the previous amplitude. How much time does it take for the amplitude to decay to 41.0 percent of its original initial value

Atoaster oven has a resistive heating element. the average rate at which it dissipates energy as thermal energy is 1.00 \(\rm kw\). in the united states, emf amplitude in household circuits is \(\mathcal e_{\max}\) = 170 \({\rm \; v}\) and the \(\rm ac\) oscillation rate is 60 \(\rm hz\). part a what is the root-mean-square current through the heating element?