How much voltage must be used to accelerate a proton (radius 1. 2 ×10−15m) so that it has sufficient energy to just penetrate a silicon nucleus? a silicon nucleus has a charge of +14e, and its radius is about 3. 6 ×10−15m. Assume the potential is that for point charges.

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Which of the following is a characteristic of the coverdell education savings account

Acheetah ran 75 meters at a speed of 25 meters per second. how long was the cheetah running? 3 seconds 5 seconds 30 seconds 50 seconds