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?

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?