2. Two projectiles thrown from the same point at angles 0,=60° and 02=30° with the horizontal, attain the same height. What is the ratio of their initial velocities (Voi:Voz)?

Can somebody explain to me how newton's 3rd law relates to momentum? ~ap physics 1

Afixed electric space heater wired by a cable with an ampacity of 30 a should draw a maximum current of a. 30 a. b. 24 a. c. 15 a. d. 27 a.

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.