An adiabatic air compressor compresses 10 l/s of air at 120 kpa and 20 °c to 1000 kpa and 300 °c. determine the power required to drive the air compressor, in kw.

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?

Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?

What sort of waves exhibit the doppler effect?