You are at the top of the empire state building on the 102nd floor, which is located 373 m above the ground, when your favorite superhero flies over the building parallel to the ground at 70.0% the speed of light.
you have never seen your favorite superhero in real life. out of curiosity you calculate her height to be 1.50 m . if the superhero landed next to you, how tall would she be when standing?
a). 2.10 m
b). 1.50 m
c).1.15 m
d). 1.07 m

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