stone is 90g, water is 50 centimeter cube and water and pebble is 84 centimeter cube, what is the density of stone?

2.65g/cm³

Explanation:

Given parameters:

Mass of stone  = 90g

Volume of water = 50cm³

Volume of water and pebble  = 84cm³

Unknown:

Density of stone = ?

Solution:

Density is the mass per volume of a substance;

        Density =

To find the density of the stone, we know the mass of the stone already. Then let us find the volume of the stone;

 Volume of stone  = Volume of water and Pebble - Volume of water

                               =   84cm³ - 50cm³

                               = 34cm³

So, density of stone  =  = 2.65g/cm³

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.​