Shown is a top view of a 50-kg person walking on a large horizontal disk, which rotates with constant angular velocity ω0 = 0.3 rad/s. he walks at a constant speed v0 = 5 m/s along a straight line painted on the disk. what is the magnitude of the horizontal force exerted on him by the disk when he is 6 m from the center of the disk? a person is shown walking from the center of a disk.

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

Match each scenario to the form of energy it represents

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.