A 2 kg box with some initial velocity slides up a frictionless ramp, which is at a 15° angle to the ground, until the box comes to rest 1 second later.

Aheat engine that operates on a carnot cycle has an efficiency of 0.420 when its low-temperature reservoir is at 10 ∘c.part aby how many degrees celsius must you increase the temperature of the high-temperature reservoir to increase the efficiency to 0.600 if you continue to use the same low-temperature reservoir?