A fictional planet has a radius of 3.00 x
10^6 m and a mass of 4.00 x 10^24 kg.
If a 5.00 kg rock is dropped on the
surface of this planet, what would its
acceleration be while in free fall?

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) =_