Force of repulsion between an aluminum and copper nucleus
An aluminum nucleus has 13 protons and 14 neutrons. A copper nucleus has 29 protons and 34 neutrons. What is the force of repulsion between an aluminum nucleus and a copper nucleus when they are separated by 10 to the -9 meters?
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A simple Atwood's machine uses two masses, m1 and m2. Starting from rest, the speed of the two masses is 9.0 m/s at the end of 9.0 s.
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What is the total mechanical energy present at the height given? What is its speed just as it left the ground? What is its maximum height?
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