Therefore: <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>x</mi><mo>=</mo><mfrac><mrow><mo>-</mo><mi>b</mi><mo>±</mo><msqrt><msup><mi>b</mi><mn>2</mn></msup><mo>-</mo><mn>4</mn><mi>a</mi><mi>c</mi></msqrt></mrow><mrow><msup><mn>2</mn><mn>4</mn></msup><mi>a</mi></mrow></mfrac><mo> </mo><mo> </mo><msup><mrow><mo> </mo><mn>2</mn></mrow><mn>42</mn></msup><mo> </mo><mn>443</mn></math> Fc=Fe mr2 = kq1q2r2 We can further decompose and write it in terms of the time period T: =2T Therefore, our equation becomes: mr2T2= kq1q2r2 mr42T2=kq1q2r2 42mr3kq1q2=T2 42mr3kq1q2=T