True or false. some cars are 100 percent efficient at converting energy from gasoline to energy of motion.

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)

How would a small bar magnet be oriented when placed at position x?

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.