In the figure below, a nonconducting rod of length L = 8.50 cm has charge -q = -4.32 fC uniformly distributed along its length.

(a) What is the linear charge density of the rod?
C/m

(b) What is the magnitude of the electric field at point P, a distance a = 12.0 cm from the end of the rod?
N/C

(c) What is its direction?
° (counterclockwise from the positive x axis)

(d) What is the electric field magnitude produced at distance a = 50 m by the rod?
N/C

(e) Repeat part (d) for a particle of charge -q = -4.32 fC that replaces the rod.
N/C