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Two objects of equal positive charge are separated by 0.0029 m and experience an electric force of 0.98 N What is the charge of each object?
Wiki User
∙ 14y ago
The equation for Coulomb's Law is: Force = k(q1q2)/r2
k is a constant: 9 x 109 Nm2/C2
q1 and q2 are the charges
r is the distance between the two charges
- Since the charges are equal and we are solving for the charges, we should rewrite the equation: F = kq2/r2 which means: q = sqrt(Fr2/k)
- Plug in the given values:
q = sqrt[(0.98 N)(0.0029 m)/(9 x 109 Nm2/C2)]
- q = sqrt(9.1576 x 10-16 C2) (Note: units cancel out)
- q = 3.026 x 10-8 C (Note: 'sqrt' means 'square root')
Wiki User
∙ 14y ago
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