Select all that apply. No work is accomplished in which of the following situations? 1.A refrigerator on rollers is pushed across a level floor at a constant velocity. 2.A girl pulls up on a window to open it, but it won't move. 3.A boy lifts a 4.0-newton box to a height of 1.0 meters.

The amount of work done is determined by 2 factors. describe an example of work (using the scientific definition) list the 2 factors that determine the amount of work done.

Thermal radiation gets its name because

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?