You have two solid steel spheres; sphere 2 has twice the radius of sphere 1. what is the ratio of the moments of inertia, i2 : i1?

Explanation:

The momentum of inertia of the solid sphere is :

m is the mass of solid sphere

r is the radius of sphere

Since,

........................(1)

Let r' is the radius of second sphere such that, r' = 2r. New moment of inertia is given by :

Similarly,

.

........................(2)

Dividing equation (1) and (2) as :

So, the ratio of their moments off inertia is 32:1

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.​