An insulated 2-m3 tank is to be charged with r134a from a line flowing the refrigerant at 3 mpa, 90◦c. the tank is initially evacuated, and the valve is closed when the pressure inside the tank reaches 3 mpa. find the mass in the tank and its final temperature

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )