How much work is done by the electric force
The nucleus of a copper atom contains 29 protons and has a radius of 4.8 × 10-15 m. How much work (in electron volts) is done by the electric force as a proton is brought from infinity, where it is at rest, to the "surface" of a copper nucleus?
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A ramp is 25 meters long and is inclined at 30 degrees with the horizontal. A block of mass 25 is pulled up at a constant acceleration of 1m/s2. The coefficient of kinetic friction is 0.15. If the box starts at rest from the bottom, what will be t
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The nucleus of a copper atom contains 29 protons and has a radius of 4.8 × 10-15 m. How much work (in electron volts) is done by the electric force as a proton is brought from infinity, where it is at rest, to the "surface" of a copper nucle
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An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. A 400-g sample of silver at an initial temperature of 87°C is placed in the water. The stirrer is used to stir the mixture until it reaches its final equilibri
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