During nuclear fission, great amounts of energy are produced from a. particle accelerators b. tremendous amounts of mass c. a series of chemical reactions d. very small amounts of mass (there are already two questions about this with 3 different answers, so that's why i'm asking this)

Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same

Which type of circuit is becoming more common in residential electrical design and construction? a. hazardous-area circuit b. three-phase circuit c. 480-volt circuit d. communication circuit

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.