What is the momentum of an 8.0 kg ball rolling at 2.0 m/s?

According to social exchange theory, altruistic behaviors benefit the individual who performs them.

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)

Write down two additional questions about earth's magnetic field that will make your presentation more informative.