2. a metal sphere (diameter = 0.2 cm, density =9.5 g/cm3 ) is settling in glycerol (density = 1.26 g/ml, viscosity =1069 cp) at its terminal velocity. a) what is the terminal velocity in cm/sec? be sure and state your assumptions and verify that they are true, when possible. b) what is the kinetic force on the sphere in dynes? c) if we change the sphere’s density but not its size, will the magnitude of the form drag change? why? d) what is the force of