In every atom, one or more positive charges are positioned randomly throughout the atom along the circumference of the atom in evenly spaced orbits around the nucleus in a dense core called the nucleus which material is the best electrical conductor? plastic glass silver nylon

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?