Johnny and Edward, two students are running against each other. Edward’s mass is 68 kg and is running at 4 m/s. Johnny, 40 kg, is attempting to tackle Edward and stop him. At what velocity should he be running in order to stop Edward?

explanation:

earth's surface is mainly heated by the absorption of infrared radiation from the sun.

evaporation occurs because molecules in liquid water are warmed ( usually by the sun) and vibrate quicker, becoming less dense and rise.

condensation occurs because molecules in water vapor are cooled and therefore vibrate more slowly thus becoming more dense and eventually fall to earth.

lines of equal barometric pressure on a weather map are called: isobars : lines of equal temp on a weather map are called: isotherms.​

talk back to him about the sport and show him your expertise or leave the room