Acompressed spring has 16.2j of elastic potential energy when it is compressed 0.30m . what is the spring constant of the spring?

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.

The air that we breath is made mostly of which gaseous molecule

The energy released by a nuclear fusion reaction is produced when