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A proton has a speed of 2.0 x 105 m/s at a point where the electrical potential is 1000 V. It moves through a point
where the electric potential is 700 V. What is its speed at this second point? (e = 1.6 x 10-19 C, mproton = 1.67 x 10.27
kg)
1.6 x 105 m/s
7.8 x 105 m/s
07
1.3 x 105 m/s
2.6 x 105 m/s
3.1 x 105 m/s
2.8 x 105 m/s

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