If the difference in tension (t0−t′) between the two ends of the rope is 520n and the capstan has a diameter of 10.0cm and turns once in 0.90s, find the rate pthermal at which thermal energy is being generated.

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?

On a mild saturday morning while people are working inside, the furnace keeps the temperature inside the building at 23degreesc. at noon the furnace is turned off, and the people go home. the temperature outside is a constant 16degreesc for the rest of the afternoon. if the time constant for the building is 3 hr, when will the temperature inside the building reach 18degreesc? if some windows are left open and the time constant drops to 2 hr, when will the temperature inside reach 18degreesc?