please answer the question below

An infinite, nonconducting sheet has a surface charge density = +7.07 pC/m3. [a) How much work is done by the electric field due to the sheet if a particle of charge 40 = 3.20 x 10" C is moved from the sheet to a point Pat distanced = 3.72 cm from the sheet? (b) If the electric potential Vis defined to be zero on the sheet, what is Vat P? (a) Number i 2.38E-21 Units (b) Number -0.0172 Units V V