3. Each croquet ball in a set has a mass ok 0.50 kg The green ball, traveling a 12,0 m/s, strikes the blue ball, which is at rest. Assuming that the balls slide on a frictionless surface and all collisions are head-on, what is
the final speed of the blue ball?
Givens:
Initial:
Solve:
Final:
Unknown:
Equation

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) =_