A boat slows from 50 m/s to 15 m/s at a rate of -20 m/s/hr. How long did it take the boat to slow down?

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.​

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle