A charged mass on the end of a light string is attached to a point on a uniformly charged vertical sheet (with areal charge density = 0.13 C/m) of infinite extent. 89.7 cm- 0.21 C 1g Find the angle the thread makes with the vertically charged sheet. The acceleration due to gravity is 9.8 m/s and the permittivity of free space is 8.854 x 10-2 C/N m. Answer in units of .