Solve the all parts of given problem:
Problem: The electric field between the plates of a parallel-plate capacitor is horizontal, uniform, and has a magnitude E. Asmall object with a charge of -2.13μC is attached to the string. The tension in the string is 0.480N , and the angle it makes with the vertical is 16.
Part A: What is the mass of the object?
Part B: what is the magnitude of the electric field?
Please give actual answer for above problem.