A proton (mass m = 1.67 x 10-27 kg) is being accelerated along a straight line at 1.10 × 1012 m/s² in a machine. If the proton has an initial speed of 8.50 x 105 m/s and travels 4.20 cm, what then is (a) its speed and (b) the increase in its kinetic energy? ادا Number Units
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