Acontainer with volume 1.77 l is initially evacuated. then it is filled with 0.226 g of n2. assume that the pressure of the gas is low enough for the gas to obey the ideal-gas law to a high degree of accuracy. if the root-mean-square speed of the gas molecules is 178 m/s, what is the pressure of the gas?

Mutt and jeff are running along a path each pushing a cart loaded with rocks. if mutt's wagon has a mass two times greater than jeff's and they want to stay together, arriving at their destination at the same time, what must happen? a) jeff should slow down so mutt can catch up. b) mutt must use half as much force to push his cart. c) mutt must use twice as much force to push his cart. d) mutt and jeff will use the same force, but mutt will take bigger steps.