Water enters a shower head through a pipe of radius 0.0112 m at 3.25 m/s. what is its volume flow rate?(unit=m^3/s) PLEASE HEL M!! I WILL GIVE 20 POINTS FOR THE RIGHT ANSWER. IF YOU DON'T KNOW OR WON'T TRY PLEASE DON'T ANSWER

Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.

The dot diagram represents the motion of the motorcycle as it moves from left to right

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) =_