Air is pumped into a bicycle tire. The 18 moles of air initially in the tire have a gauge pressure of 5 atm. How many moles of air must be pumped into the tire in order to raise the gauge pressure to 10 atm?

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation 2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!