A piston -cylinder device with a set of stops contains 10 kg of refrigerant -134a. Initially, 8 kg of the refrigerant is in the liquid form, and ttemperature is - 8⁰c. Now heat is transferred slowly to the refrigerant until the piston hits the stops, at which point the volume is 400 L . Determine (a) the temperature when the piston first hits the stops (b) the work done during this process. Show the process on T-v and P-v diagrams.

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction

16. a brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 n on him. the mass of the losing player plus equipment is 90.0 kg, and he is accelerating at 1.20m/s2 size 12{1 "." "20"" m/s" rsup { size 8{2} } } {} backward. (a) what is the force of friction between the losing player’s feet and the grass? (b) what force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg? (c) draw a sketch of the situation showing the system of interest used to solve each part. for this situation, draw a free-body diagram and write the net force equation.