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Physics, 22.06.2019 14:00
If element x has 99 protons how many electrons does it have
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For those who need theses answers i just took the test and got everyone of them
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An electron and a proton are held on an x axis, with the electron at x = + 1.000 m and the proton at x = - 1.000 m. part a how much work is required to bring an additional electron from infinity to the origin? express your answer with the appropriate units. part b if, instead of the second electron coming in from infinity, it is initially at x = + 20.00 m on the axis and is given an initial velocity of 100.0 m/s toward the origin, does it reach the origin? part c how close to the origin does it come?
Answers: 3
How was the unit of distance chosen? (Meter)...
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