During Air Force exercise, a B-52 bomber is flying at the height of 10 km with a constant speed of 900 km/h. The pilot receives a command to drop a mock bomb when the bomber is flying over START reference target placed on the ground. The pilot follows the order and releases the bomb. How far from the reference target does the bomb land?

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.