A soccer ball is kicked into the air from level ground with an initial speed of 20. meters per
second and returns to ground level. At which
angle above the horizontal should the ball be
kicked in order for the ball to travel the greatest
total horizontal distance? [Neglect friction.]

An electric current in a wire will push or pull on a permanent magnet. which statement best explains how an electric current creates an electromagnetic force on another magnet?

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.