19. Clan systems are used as a form of govenment in Aboriginal communities. They are used as a way of determining the tasks that people in the clan perform. This type of system is an example of a physical system. True or False?

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?

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)

When measuring volume, why is it important to use the correct tools and units to attain the greatest accuracy? use specific examples from the lab to support your answer. (5 points)