What is the electrical force between q1 and q2? Recall that k = 8. 99 × 109 N•meters squared over Coulombs squared. 4. 3 × 1010 N 3. 5 × 1010 N –5. 4 × 1010 N –5. 8 × 1010 N.

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

If a simple machine reduces the strength of a force, what must be increased?

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two