If a baseball has a negative velocity and a negative acceleration, its speed is?

What is a costume plot? why is it important to a film or theater production?

Convection currents are caused by differences in what two things?

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.