Answer Happy

A = 9
B = 8
C = 25
You have two square metal plates with side length of (6.50 + C)cm. You want to make a parallel- plate capacitor using Mylar as a dielectric (dielectric constant, K = 3.2) that will hold a charge of (12.5 + A)nC when connected to a (34.8 + B) V potential difference. Determine the necessary separation in mm between the plates (thickness of the Mylar). Round your answer to two significant figures.