What volume (in cm) of seawater would be needed to balance a 7.867 cm3 sample of gasoline on a two-pan laboratory balance.
Assume densities of 1.025 g/cm3 and 0.680 g/cm3 for seawater and gasoline,
respectively.

The least penetrating form of radiation is

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?

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)