31 Numerical Response 2. In a Millikan-like experiment a 1.8 x 109 kg charged oil drop accelerates upwards in a vertical electric field of strength 500 N/C. When its acceleration is upwards at 3.0 m/s, the charge on the oil drop must be a.bc x 10 C. Record your values for a, b, c, and d The values of a, b, c, and d are , and (Record all four digits of your answer in the numerical-response section on the answer sheet.)