An object with a kinetic energy of 2160 J has a new mass of 120kg. What is it's velocity?

Which would not reduce the amount of green house gasses in the air

If steel is more dense that lake water, why can a boat float

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) =_