True or False: The motion of the plates over the surface of the Earth occurs at a noticeable and fairly rapid rate.

12. ritu obtained a distinct image of a distant tree on the screen with the of a concave mirror.to find the focal length of the mirror she has to measure the distance between: (a) mirror and the tree. (b) screen and the tree.(c) mirror and the screen. (d) mirror and tree as well as between screen and the tree.

What is the momentum of 70 kg runner traveling at 10 m/s?

What is the momentum of an 85 kg runner traveling at 8 m/s?