In a shipping yard, a crane operator attaches a cable to a 1,090 kg shipping container and then uses the crane to lift the container vertically at a constant velocity for a distance of 32 m. Determine the amount of work done (in J) by each of the following.

a. the tension in the cable
b. the force of gravity

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.