A positive charge of 4.70 μC is fixed in place. From a distance of 4.10 cm a particle of mass 5.10 g and charge +4.00 μC is fired with an initial speed of 70.0 m/s directly toward the fixed charge. How close to the fixed charge does the particle get before it comes to rest and starts traveling away?
Concept - from conservation of energy principle, the initial sum of potential energy plus kinetic energy will be equal to final potential energy. We use this to find the closest approach distance.
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A positive charge of 4.70 μC is fixed in place. From a distance of 4.10 cm...
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A positive charge of 5.30 μC is fixed in place. From a distance of 4.20 cm a particle of mass 5.00 g and charge +3.10 μC is fired with an initial speed of 70.0 m/s directly toward the fixed charge. How close to the fixed charge does the particle get before it comes to rest and starts traveling away?
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A positive charge of 4.80 μC is fixed in place. From a distance of 3.40 cm a particle of mass 5.20 g and charge +3.70 μC is fired with an initial speed of 66.0 m/s directly toward the fixed charge. How close to the fixed charge does the particle get before it comes to rest and starts traveling away?