A cross-country skier moves 36 meters eastward, then 44 meters westward, and finally 22 meters eastward. Determine the magnitude of the distance the object traveled and the magnitude and direction of the displacement.

On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s.t.p.?