Suppose two thin flat plates measure 3.0m x 3.0m and are separated by 6.0 mm. They are oppositely charged with ±20µC.
Part A
Estimate the total force exerted by one plate on the other (ignore edge effects). Express your answer using two significant figures.
Part B
How much work would be required to move the plates from 6.0 mm apart to 2.00 cm apart? Express your answer using two significant figures.