A12.0 v battery of negligible internal resistance is used to charge 12 f capacitor through a 200  resistor. find (a) the initial current (b) the final charge on the capacitor (c) the time required for the charge to reach 75% of its peak value.

The system is released from rest with the cable taut, and the homogeneous cylinder does not slip on the rough incline. determine the angular acceleration of the cylinder and the minimum coeffi cient s of friction for which the cylinder will not slip.

Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car