Answer Happy

This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part Tutorial Exercise In a period of 1.2 s, 5.0 x 103 nitrogen molecules strike a wall of area 7.7 cm². If the molecules move at 315 m/s and strike the wall head c in in a perfectly elastic collision, find the pressur exerted on the wall. (The mass of one Ny molecule is 4.68 x 102 kg.) Step 1 In a perfectly elastic head-on collision, each nitrogen molecule rebounds from the wall, and travels in the opposite direction, at the same speed it had as it approached the wall. That is, vy - Taking the direction toward the wall as the positive direction, we find that the change in the linear momentum of a single nitrogen molecule during the collision is Apmolecule mvy-mv, mv)-mv, -2mv Thus, it N = 5.0 x 1023 molecules strike the wall each second, the total change in momentum of nitrogen gas molecules in a one-second time interval is APtotal NAPmolecule-2Nmv From the impulse-momentum theorem, the magnitude of the average force as the gas exerts on the wall is f Appeal- -2Nmv Poss- At At M -2(5.0 x 10²3 molecules) (4.68 x 10-26 kg/molecule ») N. m/s)