Imagine a girl climbing a rope ladder to ride a zip line. it takes effort for her to get to the top of the ladder, but then she zips to the ground with ease. she travels down easily because she has stored energy. what’s your guess about where this energy came from?

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?