Draw a ray diagram for virtual image in case of convex and concave lens and in case of convex and concave mirrors.

If a clock aboard a space ship traveling at 0.900 c of the speed of light relative to earth chimes once at the beginning of the hour and again when it reads one hour later, how much time would an observer on earth say elapsed between the two chimes?

As the distance from a magnet increases, what happens to the magnet force?

Which of the choices are parts of an atom? select all that apply. a.) compound b.) electron c.) neutron d.) molecule e.) photon f.) proton g.) element