Arigid 3-ft3 vessel contains r-134a originally at –20°f and 27.7 percent quality. the refrigerant is then heated until its temperature is 100°f. calculate the heat transfer required to do this. use data from the refrigerant tables.

An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.

Avalue that describes how heavy an object is and is related to the force of gravity is

Suppose an objects initial velocity is 10m/s and it’s final velocity is 4 m/s. mass is constant. what can best be concluded about the object based in the work-energy theorem