An atom that has a charge of +3 gains two electrons. The charge on the atom will now be

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)

What object a collides with object b and bounces back its final momentum is?

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?