Aparallel-plate capacitor is formed from two 6.0-cm-diameter electrodes spaced 2.0 mm apart. the electric field strength inside the capacitor is 1.0×106 n/c1.0×106 n/c. what is the charge (in nc) on each electrode?

A1200 kg car traveling north at 10 m/s is rear-ended by a 2000 kg truck traveling at 30 m/s. what is the total momentum before and after the collision?

You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.

What are the similarities & differences between a thermistor and a light dependent resistor in physics?