Q. At first, the translational rms speed of a molecule of an ideal gas is 484m/s. The pressure and volume of this gas are kept constant, as the number of molecules is doubled, what is the final translational rms speed of molecules?
Q. A snowball rolls off a barn roof that slopes downward at the angle of 40 ^circ. The edge of the roof is 14.0 {rm m} above the ground, and the snowball has a speed of 7.00 {rm m/s} as it rolls off the roof. Ignore air resistance.