Chapter 18, Problem 59GP

& A small object of unknown mass and charge Is tied to an Insulating string that is connected to a sensitive force sensor. The object is placed between two large conducting plates, and the string is kept taut by charging the plates as shown in Figure P18.59. The mass of the string is 0.030 g and the distance between the plates is 15.0 cm. As the potential difference between the plates increases, the force exerted by the force sensor on the string changes as shown in the table. Determine the mass and charge of the particle (Note: This is a problem that requires linearization of data.)

$\mathrm{**\#x0394;}V\left(\text{V}\right)$	$F_{\text{FS on S }}\left({10}^{-3}\text{N}\right)$
5000	52
5500	67
6000	82
6500	97
7000	110