The friction caused by the sandpaper being rubbed against the wood will create heat, causing the wood's molecules to move slightly.
yes the grain is still going against the grain
To erase uneven portions and make the surface even.
it is sliding friction
The answer is sliding friction.
it will hum
Um ok
Rolling friction, I believe.
Drag.
sliding friction
static friction
Slidig Friction is the kind of friction.
Rolling friction, I believe.
Drag.
sliding friction
Friction
sandpaper
Shark.
is a kind of stone that may obtained quitly
static friction
static friction
Sliding Friction
Sliding Friction
heat friction