Depends on the surface, sandpaper usually.
the polished surface of a rock would be the slickensides
granite
granite
smooth surface.
on a smooth surface
abrasive means to smooth out a rough surface
the rough surface creates more friction as to that of soft surfaced ones
two rough ones - there will be more friction xx
Smooth surface
The rough surface is better than the smooth surface for the frictional force to act.
smooth surface.
on a smooth surface
Its surface is rough because of all the rock's and crater's in its surface.
abrasive means to smooth out a rough surface
no zinc is not rough it's surface is smooth
mars is rough because of it craters
The Rough ER has a surface covered by mitochondria - which appear as small circles, and make the surface "rough" in appearance. The Smooth ER does not have these ribosomes, and so the surface is just one smooth line.
The moon's surface is rough - due to numerous impacts from meteorites
Jupiter is a gas giant. It does not have a surface.
Here we are talking about the surface of the muscles..... Smooth muscles have smooth surface while striated muscles have rough surface.....