An object shot straight up rises for 7.2 seconds before it stops. How long will it be in flight from the ground back to the ground?

The four giant gas points that are made primarily of lightweight elements are

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

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) =_