How much work is required to move an electron
through a potential difference of 3.00 volts?
(1) 5.33 × 10^–20 j (3) 3.00 j
(2) 4.80 × 10^–19 j (4) 1.88 × 10^19 j

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.