Dont answer if you dont know. for a person who is farsighted, what would they need to have a correct focal point?
a. convex lens
b. convex mirror
c. concave lens

Which types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light? check all that apply. radio waves infrared light microwaves gamma rays visible light x-rays

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

Two balls, each with a mass of 0.5 kg, collide on a pool table. is the law of conservation of momentum satisfied in the collision? explain why or why not