1 Rank some of the moving people and things at the skating rink in
order of increasing speed.
2 How do you use changes of speed in
your favorite sport?

Why are gamma rays not affected by a magnet as they pass over it? gamma rays are composed of only energy. gamma rays do not have enough mass to be affected. gamma rays do not have the right electrical charge to be affected. gamma rays move too fast for anything to affect their pathway.

An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons

Fossil fuels are organic compounds that are made from