$5000\frac{N}{C}1\mathrm{.}5min$ diameter $an$ then measured $an$ electric field $of5000\frac{N}{C}$ near its surface. Each toner particle has the same charge $as20$ electrons.

Part $A$

How many toner particles would have $tobeon$ the surface $to$ produce these results?

Express your answer using two significant figures.

Previous Answers

Part B

What is the total mass of the toner particles? Each toner particle has a mass of $9\mathrm{.}0{10}^{-16}kg.$

Express your answer to two significant figures and include the appropriate units.

$m=()-$

Units