Two tiny spheres of mass m = 7.50 mg carry charges of equal magnitude, 72.0 nC, but opposite sign. They are tied to the same ceiling hook by light strings of length 0.530 m. When a horizontal uniform electric field E that is directed to the left is turned on, the spheres hang at rest with the angle between the strings equal to 50.0 in the following figure. (Figure 1) Figure The one on the left Submit Previous Answers Part B 1 of 1 > Correct What is the magnitude E of the field? Express your answer with the appropriate units. 0 L L E = Value Submit Request Answer E Provide Feedback ? Units