Three identical very small 50-kg masses are held at the corners of an equilateral triangle, 0.30 m on each side. if one of the masses is released, what is its initial acceleration if the only forces acting on it are the gravitational forces due to the other two masses

Gravitational force between any two masses is given by

Now net force on it due to two masses is given by

here

Now acceleration is given by

F= ma

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.​