Refrigerant 134a enters a horizontal pipe operating at steady state at 40 oC, 300 kPa and a velocity of 40 m/s. At the exit, the temperature is 50 oC and the pressure is 240 kPa. The pipe diameter is 0.04 m. Determine

a) the mass flow rate of the refrigerant, in kg/s

b) the velocity at the exit, in m/s

c) the rate of heat transfer between the pipe and its surroundings, in kW

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?