You know what instead i'll put the questions together for 60 !

1. solve d = rt for r
2. solve p = 144p divided by y for p
3. solve r = cs divided by d for c
4. solve p = a + b + c for b
5. solve t = m - n for n
6. solve a = a+b divided by 2 for b

show substitution for all questions, not just the answers.
include the answers for all the questions and how you solved the questions.

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