Q1. According to the Guinness Book of World Records (1990 edition, p. 169), the highest rotary speed ever attained was 2010 m/s (4500 mph). The rotating rod was 15 cm (5.9 in) long. Imagine the speed quoted is that of the end of the rod.
What is the centripetal acceleration of the end of the rod? Response in units of m/s2
Q2. The thin plastic rod of length L = 10.0 cm has a non uniform linear charge density λ = cx, where c = 49.9 pC/m. (a) With V = 0 at infinity, find an electric potential at point P2 on the y axis, a distance y = D = 3.56 cm. (b) Find electric field component Ey at P2. (c) Why cannot the field component Ex at P2 be found using the result of (a)?