Identify the gas that has a root mean square velocity of 375 m/s at 225 k.

Aproton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?

Oxygen gas enters well-insulated diffuser at 25 lbf/in.2, 420r, with a velocity of 860 ft/s through a flow area of 1.6 in.^2. at the exit, the flow area is 12 times the inlet area, and the velocity is 19 ft/s. the potential energy change from inlet to exit is negligible. assuming ideal gas behavior for the oxygen and steady-state operation of the diffuser, determine the following: (a) the exit temperature, in r(b) the exit pressure, in lbf/in.^2 (c) the mass flow rate, in lb/s

This lab will not "work" for some people - they won't be able to collect a clump of dna for their necklace. explain how it is possible to have actually extracted dna from your cheek cells, yet at the end of the lab procedures, it is not obviously visible.