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1. A proton is a moderately strong electric field experiences an electric force of F=10-14 N....

1. A proton is a moderately strong electric field experiences an electric force of F=10-14 N. How long would it take this field to accelerate the proton from the rest (v0=0) to 80% of the speed of light (v=0.8c)? Hint: F= (Δp/t); p= mv= m0v/[(1-v2/c2)]1/2 . (Ans.: 66.9 μs).

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