Three kg of Refrigerant 22 undergoes a process for which the pressure–specific volume relation is p20.8 5 constant. The initial state of the refrigerant is 12 bar and 608C, and the final pressure is 8 bar. Kinetic and potential energy effects are negligible. Determine the work, in kJ, for the process.

Mike walks 100 meter north, then walks 30 meters south. after this, he walks another 10 meters north. what is the magnitude of his total displacement during this walk,in meters?

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 sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the sound level near the, would bea. 70dbb. 73 dbc. 105 dbd 140 db