Okay so i already answered this question a. what is the density of an 84.7g sample of an unknown substance if the sample occupies 49.6cm^3? but question b. stumped me so question b. is what volume would be occupied by 7.75g of this same substance?

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection

Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17°c. this system uses a regenerator as well as reheating and intercooling – the intercooler returns the air to the inlet temperature. the pressure ratio across each compressor is 4 ; 300 kj/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20°c. determine the system’s thermal efficiency. assume isentropic operations for all compressor and the turbine stages and use constant specific heats at room temperature. (0.378)

What is a analogy for transition metals