2. A projectile is launched at a speed of 35 m/s and an angle of 40 above the horizontal. (A) How long does it take for the projectile to make an angle of 10 with the horizontal (still on its way up)?
(B) What is the object’s speed at that point?

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.