N electroscope is given a positive charge, causing its foil leaves to separate. When an object is brought near the top plate of the electroscope, the leaves separate even further. We could conclude.

6–55 refrigerant-134a enters the condenser of a residential heat pump at 800 kpa and 358c at a rate of 0.018 kg/s and leaves at 800 kpa as a saturated liquid. if the compressor consumes 1.2 kw of power, determine (a) the cop of the heat pump and (b) the rate of heat absorption from the outside air.

Who was the first scientist to measure speed as distance over time?

If you let go of the notebook after lifting it, will it move? how?