Metal Density (g/mL)
Cu 8.92
Al 2.702
Pb 11.3437
Zn 7.14
Fe 8.39
Sn 7.28

You are given a metal block with a mass of 62.44g and a mass of 7cm3. What is the identity of your block? How did you know?

If you mix chlorine lithium and nickel together which two elements would be the most reactive

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