What is the bar force at CE in KN? What is the bar force at CF in KN? What is the bar force at DF in KN?

13. The amount of heat (Hth, thermal energy) stored in rocks, m = 500 kg, S = 840 J/(kg °C), Tfinal =50°C, Tinitial = 40°C is: ·Hth = 19*10E(6) Joules. ·Hth = 4.2 * 10E(6) Joules. %3D ·Hth = 4.2*10E(4)Joules. %3D

Describe processes occur in a certain direction, and not in the reverse direction.

A hydraulic press must be used to press-fit two components together in an assembly process. The system must generate at least 975 lb of force to perform the press fit. The piston at the input cylinder is pushed with a force of 250 lb and has an area of 30 in.2. The output can use up to 15 cylinders that are each 30 in.?. How many output cylinders must be incorporated into the design? Hint (you cannot have a fraction of a tangible item - i.e. you cannot have a decimal of a cylinder)