A magnet has a north pole and a south pole. How does the north pole of one magnet interact with the south pole of another magnet?

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?

Which wave would cause destructive interference at every point of the wavelength and completely cancel out the wave?

Which of the following quantities have the dimensions of a speed? (1)at (2)at^2 (3) (2ax)^(1/2) ()/a)^(1/2) dimension of speed = other dimension =