Help me it's urgent please the last one is the light will move in some manner not determined by the information here.

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)

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?

What is the coefficient of kinetic friction μk between the block and the tabletop?