An archer uses an average force of 50.0 N to draw the string of his bow through a distance of 0.412 m. Then, he
fires a 297 g arrow straight up into the air. Make sure you
show all your work for all of your answers.

Spend time observing or thinking about events that involve matter and energy. which events can you explain? which events can’t you explain?

Which component of the earth’s atmosphere is decreased due to photosynthesis?

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.