What is the force between two balloons with a negative charge of 1.6 ✕ 10 to power of -10 C if the balloons are 7.6 cm apart?
1 answer:
Answer: 4.0·10^-8 N
Explanation: both forces are negative so force is repulsive
F = k q1·q2 /r². K = Coulomb's constant 9·10^ 9 Nm²/C².
Both Charges are -1.6·10^-10 C and r= 0.076 m
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