A rock is thrown downward from the top of a cliff with an initial speed of 13 m/s. If the rock hits the ground after 2.7 s, what is the height of the cliff? (Assume there is no air resistance)

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.

What is the relationship between the direction of motion of the balloon and the wind currents

What are the necessary conditions for fusion?