A 1 kg mass that is moving east at 9 m/s collides with a 2 kg mass that is moving north at 6 m/s. The two masses stick together. What is the speed of the resulting 3 kg mass just after the collision

True or false graphs must include scales that increase by the same amount

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?

If you wanted to move an electron from the positive to the negative terminal of the battery, how much work w would you need to do on the electron? enter your answer numerically in joules.