A 72kg friend is standing still on rollerskates holding a 5.5kg watermelon. He throws the watermelon forward with a velocity of 3.3m/s. What is his recoil velocity?

An equinox occurs when a. neither end of earth's axis is tilted toward or away from the sun. b. the north end of earth's axis is tilted away from the sun. c. the north end of earth's axis is tilted toward the sun. d. earth's axis is parallel to the sun's rays. select the best answer from the choices provided a b c d

Ms.hidalgo opens the door to her classroom. her classroom is 60 degrees and the air outside is 80. predict what will happen using your knowledge of how heat flows.

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig