The charge density on a disk of radius R = 11.4 cm is given by o = ar, with a = 1.34 uC/m and r measured radially outward from the origin (see figure below). What is the electric potential at point A, a distance of 36.0 cm above the disk? Hint: You will need to integrate the nonuniform charge density to find the electric potential. You will find a table of integrals helpful for performing the integration. 333.24 X Your response differs from the correct answer by more than 100%. V A V R