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

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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