Positive charge Q is distributed uniformly along the x axis from x = 0 to x = a.
(a) Determine the magnitude of the electric field at x = l + a on the x axis.
(b) Find an expression for the field if l≫a.

Please find attached file for complete answer solution and explanation.

Explanation:

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.