Two tiny spheres of mass 8.80 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
\theta
between the strings equal to
58.0\deg
(Figure 1 ). Part A Which ball (the one on the right or the one on the left) has positive charge? the one on the right the one on the left Previous Answers Correct Part B What is the magnitude
E
of the field? Express your answer with the appropriate units.
E=,\pi