On july 19, 1969, apollo 11's revolution around the moon was adjusted to an average orbit of 111 km. the radius of the moon is 1785 km, and the mass of the moon is 7.3 â 1022 kg. (a) how many minutes did apollo 11 take to orbit the moon once? incorrect: your answer is incorrect. min (b) at what velocity did apollo 11 orbit the moon?

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