%3Cp%3E%3Cspan%20class%3D%22c1%22%3EA%20point%20charge%20%3C%2Fspan%3E%3Cspan%20
ID: 3893974 • Letter: #
Question
%3Cp%3E%3Cspan%20class%3D%22c1%22%3EA%20point%20charge%20%3C%2Fspan%3E%3Cspan%20class%3D%0A%22replace-insert%20done%20c1%22%20id%3D%0A%22yui_3_11_0_24_1394050816446_12%22%3E%3Cspan%20class%3D%0A%22type-specific%22%3E%3Cspan%20class%3D%22MathJax%20c7%22%20id%3D%0A%22MathJax-Element-1-Frame%22%3E%3Cspan%20class%3D%22c5%22%3E%3Cspan%20class%3D%0A%22c4%22%3E%3Cspan%20class%3D%22mrow%20c3%22%20id%3D%22MathJax-Span-2%22%3E%3Cspan%20class%3D%22mi%20c2%22%0Aid%3D%0A%22MathJax-Span-3%22%3Eq%3C%2Fspan%3E%3C%2Fspan%3E%3C%2Fspan%3E%3C%2Fspan%3E%3C%2Fspan%3E%3C%2Fspan%3E%3C%2Fspan%3E%3Cspan%20class%3D%22c1%22%3E%26nbsp%3B%3D%0A-0.38%3C%2Fspan%3E%3Cspan%20class%3D%22replace-insert%20done%20c1%22%20id%3D%0A%22yui_3_11_0_24_1394050816446_22%22%3E%3Cspan%20class%3D%0A%22type-specific%22%3E%3Cspan%20class%3D%22MathJax%20c7%22%20id%3D%0A%22MathJax-Element-2-Frame%22%3E%3Cspan%20class%3D%22c10%22%3E%3Cspan%20class%3D%0A%22c9%22%3E%3Cspan%20class%3D%22mrow%20c3%22%20id%3D%22MathJax-Span-5%22%3E%3Cspan%20class%3D%0A%22texatom%20c3%22%20id%3D%22MathJax-Span-6%22%3E%3Cspan%20class%3D%22mrow%20c3%22%20id%3D%0A%22MathJax-Span-7%22%3E%3Cspan%20class%3D%22mi%20c8%22%20id%3D%0A%22MathJax-Span-8%22%3En%3C%2Fspan%3E%3Cspan%20class%3D%22mi%20c8%22%20id%3D%0A%22MathJax-Span-9%22%3EC%3C%2Fspan%3E%3C%2Fspan%3E%3C%2Fspan%3E%3C%2Fspan%3E%3C%2Fspan%3E%3C%2Fspan%3E%3C%2Fspan%3E%3C%2Fspan%3E%3C%2Fspan%3E%3Cspan%20class%3D%22c1%22%3E%26nbsp%3Bis%0Afixed%20at%20the%20origin.%3C%2Fspan%3E%3C%2Fp%3E%0A%3Cp%3E%3Cspan%20class%3D%22c1%22%3E%3Cbr%20%2F%3E%3C%2Fspan%3E%3C%2Fp%3E%0A%3Cp%3E%3Cspan%20class%3D%22c1%22%3E%3Cbr%20%2F%3E%3C%2Fspan%3E%3C%2Fp%3E%0A%3Cp%3E%3Cspan%20class%3D%22c1%22%3ER%3D%3F%20km%3C%2Fspan%3E%3C%2Fp%3E%0AExplanation / Answer
Since its is at the origin, Radius will be zero
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