Write an expression relating the kinetic energies of particles before and after together with Q. (Use any variable or symbol stated above as necessary.) 1/2mp . v^2 = (mBe + mn)v^2/2 + Q

The plum pudding model of the atom states that ?

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.

In addition to gravity, what is the other predominant force that affects the motion of a pendulum?