How much time is required for a car to reach a speed of 100 m/s if it starts from rest and its average acceleration is 12 m/s2?

How do you tell if someone actually cares about you? and just say they do?

What happens to an isotope during radioactive decay?

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?