A large star - greater than 5 solar masses, will -turn into a White Dwarf
-have a shorter life due to fusing faster
-will have less gravity, thus it expands
-have less luminosity

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.

Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.

If a hiker that weighs 600 newtons climbs a 50 meter hill, how much gravitational potential energy has the hiker gained?