You are told that the speed of sound in a metal depends only on the density p({ML^-3]) and on the bulk modulus of the metal, B, which has dimensions (ML^-1T^-2). Express the sound speed in terms of p and B.

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.

What are similarities and differences between refraction, reflection, diffraction and absorption?

What is a possible result of higher air temperature caused by global warming