a particle of matter that has a negative electrical charge and travels around the nucleus of an atom.

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.