Find the gravitational force exerted by the earth on a rock of mass 100kg which lies on the surface of the earth. Mass of earth is 6*10^24 kg, radius if the earth is 6.4*10^6 mand G= 6.67*10^-11 SI units.

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.​

iron would move it is magnetic there is a mag field around the current in the wire