Two skaters, one with mass 68 kg and the other with mass 48 kg, stand on an ice rink holding a pole of length 15 m and negligible mass. Starting from the ends of the pole, the skaters pull themselves along the pole until they meet. How far does the 48 kg skater move

From 0 to 5 seconds john pushed a box 5 meters. from 5 to 10 seconds, paul pushed the same box another 5 meters. who did more work? a. john b. paul c. john and paul did the same amount of work.

Energy flows from the producer level to the level. is called

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) =_