Ask your teacher a street light is mounted at the top of a 15-ft-tall pole. a man 6 ft tall walks away from the pole with a speed of 7 ft/s along a straight path. how fast is the tip of his shadow moving when he is 30 ft from the pole?

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?

Astep up transformer has 250 turns on its primary and 500 turns on it secondary. when the primary is connected to a 200 v and the secondary is connected to a floodlight that draws 5a, what is the power output? show all of your work.

The process of a material going through a change of state from a gas to a liquid