Two cars have a ‘rear end' collision. A 1200 kg Honda moving at 20.0 m/s strikes a 1000.0 kg Ford moving at 15 m/s. Their bumpers become locked and they continue to
move as one mass. What is their final velocity?

What is the fate of the electrons that interact with a specimen in an electron microscope?

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)

More solar radiation is absorbed by earth’s surface than by