9. a meteorologist describes a tropical storm as traveling northwest at 50 mi/h. which attribute of the storms motion has the meteorologist described?
a. force
b. acceleration
c. velocity
d. displacement

What was the first instrument to ever record an earthquake?

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.

In general what determines whether atoms will form chemical bonds?