PhysicsPassion

Circular Motion Class Notes

A 2.31-microFarad capacitor that is initially uncharged is connected in series with a 5.58−kΩ resistor and an emf source with ε=72.3 V and negligible internal resistance. The circuit is completed at t = 0. Find (a) Just after the circuit is completed, what is the rate at which electrical energy is being dissipated in the resistor? (b) At what value of t is the rate at which electrical energy is being dissipated in the resistor equal to the rate at which electrical energy is being stored in the capacitor?

A 65-kg skier speeds down a trail, as shown below. The surface is smooth and inclined at an angle of 22° with the horizontal.Find the direction and magnitude of the net force acting on the skier.

Lets Understand difference between Mass and Weight !