The diagram below represents two carts with low-friction wheels. A magnet is mounted on each cart. The magnet on cart 2 is twice as strong as the magnet on cart 1. Both carts are kept at rest by the attached spring scales. The sprint scale on the left reads 10 N. What does the spring scale on the right read, in Newtons? Explain your reasoning. MY TEST IS ALMOST OVER PLEASE HELP

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?