How does the focal length (f) of a convex lens compare with the focal length
of a concave lens?

A. Both are negative.
B. The focal length of the convex lens is positive, and that of the
concave lens is negative.
C. The focal length of the convex lens is negative, and that of the
concave lens is positive.
D. Both are positive.

Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot