I just need #2, this is academic physics pls help

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?