Jason and guy are throwing watermelons straight up from the ground. (they’re making fruit salad.) jason throws his watermelon at speed v and it spends time t in the air before smashing into the ground. not to be outdone, guy then throws his watermelon at speed 2v. how long is guy’s watermelon in the air before it smashes back into the ground?

2t

Explanation:

Given

Jason throwing watermelon at speed v and it spend t time in air

time to reach max height

0=v-gt'

and time to reach bottom is also t'

t=2t'

For guy throws his watermelon at speed 2v

So total time in air will be

t''=2t

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.​

explanation:

newton's third law, for every action there is an equal and opposite reaction.