a body moves in such a way that it has a displacement of 12 m towards east, 5 m towards the north and then 9 m vertically upwards. compute the magnitude of its resultant displacement. ANS (15.31m)

Who was the first scientist to measure speed as distance over time?

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) =_

The amount of potential energy possessed by an elevated object is equal to what?