An infinitely long line of charge has a linear charge density of 7.50×10^−12 c/m . a proton is at distance 14.5 cm from the line and is moving directly toward the line with speed 3000 m/s . how close does the proton get to the line of charge? express your answer in meters.

Answerwavelength;

Answerthe energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.explanationwe define electric potential as the ratio electric potential energy to the charge,    then the following gives us the potential difference,      the formula  may be on your formula sheet.the change in electric potential energy would be the energy that would needed to move it from point a to point b. solving for that, we get    using q = 8.00  × 10⁻¹⁹ c and  δv = 2.00 v, we get    the energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.

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