Acardinal (richmondena cardinalis) of mass 3.90×10−2 kg and a baseball of mass 0.143 kg have the same kinetic energy. what is the ratio of the cardinal's magnitude pc of momentum to the magnitude pb of the baseball's momentum?

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

Which of the following is an example of motion in two dimensions?

Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.