If a car previously traveled at 15.0 mph but now covers the same distance in half the time, calculate its speed.

What happens to atoms and chemical bonds during a reaction?

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.