1. A commercial airliner is flying at 450 mph, 20° east
of north, relative to the surrounding air. The surrounding air
though is blowing at 90 mph, 40° south of east, relative to the
ground. The relative humidity of the air is 70%. How fast is the
airliner flying relative to the ground, and in what
direction?
2. Kenny and Cartman are playing paintball blindfolded.
They are initially standing back-to-back, facing away from each
other. Treat it as if they...