Aaron+&+Travek's+wiki+project

Also has rotation where an object turns around on an internal axis. The fomula is v=rw. Axis- straight line around which rotation takes place if you fire a cannonball at the right velocity it will travel around earth always falling beacause of the gravitational field but never reaching earth. Equations f gravity.=gm*m squared/d squared
 * [[file:imgres.htm]]
 * circular motion- movement of an object at constant speed with a fixed radius.
 * Gravity & Weight-(newtons universal gravitation) fire a cannonball & it will eventually fall back to earth.


 * friction- surface resistance to relative motion
 * static friction-o< f static <m Fn
 * Kinetic friction force = Mk*Fn
 * Coulombs law- relationship among electrical forces charges and distance.(electric forces can be attractive or repulsive.)
 * Repulsive-positive and positive charge or negative and negative charges
 * Attractive- positive & negative charges discovered by french scientist. Q= charge
 * equations F= Kgaqb/d squared K= electrical proportionality constant
 * 1 proton charge+1.6*10^ -19c
 * 1 electron charge= -1.6*10^ -19c
 * Charge is not a vector quantity
 * Positive or negative refers to either protons or electron
 * media type="custom" key="7705971"