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# Two identical small metal spheres are separated by 1.00 105 m and exert an 18.9-N repulsive force on each other. A wire is connected between the...

Two identical small metal spheres are separated by 1.00 × 105 m and exert an 18.9-N repulsive force on each other. A wire is connected between the spheres and then removed. The spheres now repel each other, exerting a 22.5-N force. Assume both charges are positive.

1. Determine the total charge of this system.

q =______ (units)

2. Determine the charges of the spheres before the connection.

q1, q2 = ______ C

.The spheres had the same total charge before the wire was attached. If the two spheres had charges q1 and q2, then:  q1 +... View the full answer

• total charge 7+3=10 c
• expert2
• Jan 30, 2016 at 11:34am
• what is the answer of part 1 and part 2
• arya724578
• Jan 30, 2016 at 11:43am
• part 1 q=q1+q2=7+3=10 C, part 2; q1 = 7 C and q2 = 3 C
• expert2
• Jan 30, 2016 at 11:54am

Forces are proportional to product of charges.. hence [{(q1+q2)/2}²]/q1*q2 = (22.5/18.9) ---------------------- (1) Also... View the full answer

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