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Part A A small sphere with mass 3.00 g hangs by a thread between two large parallel vertical plates 5.00 cm apart (Figure 1). The plates are insulating and have uniform What potential difference between the plates will cause the thread to assume an angle of 30.0" with the vertical? surface charge densities to and -o. The charge on the Express your answer in volts. sphere is q = 9.00x10-6 C. IVO AEd 0 2 ? Figure