In 1820 the French physics, Andre Marie Ampére discovered that two parallel wire carry electrical current would either be attracted to one another, or repelled by one another, depending on what directs the two cures were going. Devise an experiment to reproduce Ampére results, and determine which direction current must go to produce an attractive verse a repulsive.

double the distance = divide strength by 4

which three statements are true about all alloys?

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

explanation:

wheres the pic