the speed of a car weighing 1500kg increases from 40ms to 50ms. calculate the change in it's momentum

Blank liquids and gases exert a buoyant force on objects placed in them

An object's buoyant force and weight mean the same thing. a. trueb. false

The air in an automobile tire with a volume of 2.60 ft3 is at 70°f and 21 psig. determine the amount of air that must be added to raise the pressure to the recommended value of 30 psig. assume the atmospheric pressure to be 14.6 psia and the temperature and the volume to remain constant. the gas constant of air is ru = 53.34ft⋅lbflbm⋅r(1 psia144 lbf/ft2) = 0.3704 psia⋅ft3lbm⋅r the amount of air that must be added to raise the pressure is lbm