You can increase friction by

a. making the surface rougher

b. using oil or another lubricant

c. putting the object
on wheels

d. asking a friend to push or pull

The integral design hub incorporates thento the bearing unit. n a. cv joint n b. mounting carrier n c. brake rotor n d tie rod end

Which is an example of gaining a static charge by conduction? a) rubbing a balloon against your hair. b) shuffling your shoes across a carpet. c) bringing a charged rod near an electroscope. d) touching your car on a cold day and getting a shock.

Explain why electric current cannot exist if a current doesn't have a voltage source.