You provide lubrication.
when machines are used
You can describes the friction
Friction will decrease if the coefficient of friction decreases. This can be caused by having a smother surface up to a point. (When two surface are TOO smooth the friction actually increases due to molecular attraction.)
you don't.
brakes
Decrease friction .
by using a lubricant to decrease the friction.
Friction is decreased by means of lubrication.
Decrease friction.
Noise is produced in machines due to friction.
when machines are used
when machines are used
You can describes the friction
Friction will decrease if the coefficient of friction decreases. This can be caused by having a smother surface up to a point. (When two surface are TOO smooth the friction actually increases due to molecular attraction.)
Wax, due to it filling the pores that cause friction will reduce friction.
you don't.
you don't.