by oiling
when machines are used
false
True -It's "False"!
cheese burger.
Rotating bearings.
false; usually it takes more force to overcome static friction which is higher
so you dont get tackled
walking, braking
friction is useful for: you to walk It is needed for braking Can be used to produce heat
No, it CAN'T be greater, and it is usually smaller.
Decrease friction.