document.write( "Question 894079: 1 problem, no answer, and don't understand...\r
\n" ); document.write( "\n" ); document.write( "E=0.5 * Iw^2 +U (solve for I) ???\r
\n" ); document.write( "\n" ); document.write( "Thank you.
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Algebra.Com's Answer #541732 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
EDIT: Correcting a mistake:\r
\n" ); document.write( "\n" ); document.write( "Undo everything that was done to I, and do the same thing to both sides.\r
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\n" ); document.write( "\n" ); document.write( "Additive Inverse of U;
\n" ); document.write( "Multiplicative Inverse of 0.5;
\n" ); document.write( "Square Root of both sides.
\n" ); document.write( "Multiplicative Inverse of \"w%5E2\";
\n" ); document.write( "The formula for I should be done now.\r
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\n" ); document.write( "\n" ); document.write( "What that means, is that to solve for I, perform these steps:
\n" ); document.write( "Add \"-U\" to both sides of the equation;
\n" ); document.write( "Multiply both sides of the equation by \"1%2F0.5\";
\n" ); document.write( "Multiply both sides of the equation by \"1%2Fw%5E2\";
\n" ); document.write( "\"Take\" or find the square root of both sides of the equation.
\n" ); document.write( "Simplify if necessary.
\n" ); document.write( "You should now have the formula for I.\r
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\n" ); document.write( "\n" ); document.write( "SPECIFIC STEPS (WHICH MAY VARY FROM PERSON TO PERSON)\r
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\n" ); document.write( "\n" ); document.write( "\"E=0.5Iw%5E2%2BU\"
\n" ); document.write( "\"E%2B%28-U%29=0.5Iw%5E2%2BU%2B%28-U%29\", Additive Inverse of U\r
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\n" ); document.write( "\n" ); document.write( "\"E-U=0.5Iw%5E2\"\r
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\n" ); document.write( "\n" ); document.write( "\"%281%2F0.5%29%28E-U%29=%281%2F0.5%29%280.5Iw%5E2%29\", Multiplicative Inverse of 0.5\r
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\n" ); document.write( "\n" ); document.write( "\"%28E-U%29%2F%280.5%29=1%2AIw%5E2\"\r
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\n" ); document.write( "\n" ); document.write( "\"%281%2Fw%5E2%29%28%28E-U%29%2F%280.5%29%29=%281%2Fw%5E2%29Iw%5E2\", Multiplicative Inverse of w^2\r
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\n" ); document.write( "\n" ); document.write( "\"%28E-U%29%2F%280.5w%5E2%29=%28w%5E2%2Fw%5E2%29%2AI\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28E-U%29%2F%28%281%2F2%29w%5E2%29=I\"\r
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\n" ); document.write( "\n" ); document.write( "Continue to simplify,
\n" ); document.write( "The division by \"1%2F2\" is same as multiplication by 2...\r
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\n" ); document.write( "\n" ); document.write( "\"highlight%282%28E-U%29%2Fw%5E2=I%29\"\r
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\n" ); document.write( "\n" ); document.write( "More steps were shown here than earlier listed. I included them to give clarity
\n" ); document.write( "to the solution process. Many people, both students and those beyond students
\n" ); document.write( "do not always need all these steps because they are able to see through most or
\n" ); document.write( "many of them and use some number properties in their heads. Accordingly,
\n" ); document.write( "steps can vary. Look at the identification of property I show with certain of the
\n" ); document.write( "above steps.
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