4. You run from your house to a friend's house that is 3 miles away. You then walk home.
What was your displacement?

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

terd muffin is the correct answer