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Question: The force between two charges is 25N and they are separated by a distance of .07m. One charge is 2.3C, what is the other charge?
You can use Coulomb's Law to find the other charge. Coulomb's Law states that the force between two charges is proportional to the product of the charges and inversely proportional to the square of the distance between them. The formula is: F = k * q1 * q2 / r² Where: - F is the force between the charges (25N in your case) - k is Coulomb's constant (approximately 8.99*10^9 N*m²/C²) - q1 and q2 are the charges (we know that one of them is 2.3C and we're trying to find the other) - r is the distance between the charges (0.07m in your case) To find the unknown charge (q2), you can rearrange the formula to solve for q2: q2 = F * r² / (k * q1) q2 = 25N * (0.07m)² / (8.99*10^9 N*m²/C² * 2.3C) Once you compute the above expression, you will find the value of the unknown charge in Coulombs.
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