50g of sand + 100g of hot water what it is the end temp.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)

Explain what happens at the saturation point when adding salt to water at room temperature.