A piece of iron is glued to the top of a block of wood. When the block is placed in a bucket of water with the iron on the top, the block floats. The block is now turned over so that the iron is submerged beneath of wood. Does the block float or sink

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) =_