A pendulum is constructed from a 7.26 kg bowling ball handing on a 2.5 m rope . The ball is pulled back until the rope makes a 45 degree angle with the vertical. What is the potential energy of the ball?

In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_