The metric system is preferable to the imperial system for science mainly because: a) Measurements made using metric quantities are more precise. b) Metric quantities are more accurate than imperial quantities.
c) Metric units are more convenient for making measurements in nature than imperial units. d) Conversions between metric quantities are more easily done because they are related by factors of ten.

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)

Ain is , is 's of ? 0.62 0.79 1.27 1.50

You can watch static electricity in action by rubbing an inflated balloon against your hair. your hair will actually stand on its end! it does this because each hair becomes charged, and they all repel one another.