What is the type of friction force if the object appears just about to start motion? Why?

What is the momentum of a 2 kg object moving at 15 meters per second

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.?

Atomic nuclei of almost all elements consist of