Depends upon the two rocks and where they are. You will get dust as one stone wears away the other, or they wear away each other depending on the comparative density. Two rocks in a tumbling drum will slowly round each other off, creating smooth roundish stones. If one has iron content, and the other flint, you could create some sparks that could be used to make a fire. If the rocks are coal, you could get a very fine coal dust that can be lit with a match.
Nothing happens. I have amber and wear it with wool and other clothing. At the very most there is friction.
The paper becomes semi-transparent.
It will just hurt a lot, so I advise you not to do that.
It is when the rocks are breaking under pressure, elastic rebound, and the forces pushing/pulling on rocks.
bad friction is when 2 things rub together .
Rub them together.
get two reddish brownish rocks and rub them together i learned this in science and when i find rocks like that i always rub them together
you will die
rub rocks together and put in water and stir
Friction, resulting in heat
tsunamis and earthquakes
When we rub two objects together then heat energy is generated.
Nothing happens. I have amber and wear it with wool and other clothing. At the very most there is friction.
you need a certain type of rock called flint and you need a stick and you rub the flint and the stick together to cause friction and that causes fire.
Mechanical energy is converted into thermal energy when you rub your hands together. The friction between your hands causes them to generate heat, which warms them up.
nothing happends
nothing happends