Two point charges have a total charge of 515 microc. when, Ask an Expert

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Q. A substance carried from point A to B absorbs 50 joules and its internal energy has increased by 20 joules, B to C the internal energy decreases by 5 joules. How much work was done from A to B?

Q. Two point charges have a total charge of 515 µC. When placed 1.15 m apart, the force each exerts on the other is 24.4 N and is repulsive. What is the charge on each?

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