A charged object is suspended motionless in the air by the gravitational force pulling it down and an electric force pushing it up. The charged object is in a uniform electric field of 4500 N/C and has a weight of 0.05N. What must the charge of the object be?
A. 6.67e-6 C
B. 8.89e-6 C
C. 1.11e-5 C
D. 1.33 e-5 C
Answers: 2
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