5. A woman riding a ski lift with a constant velocity of 2.1 m/s up to the top of the hill suddenly hears a loud noise. As she turns to see a fighter jet doing acrobatics involving
sharp turns, she accidentally knocks her skis off the lift. In the moment afterwards, which two objects have the same inertial frame of reference?
"O
the skier and her skis
the pilot and the jet
the skier and the lift
the skis and the ground

Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c