document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=401986>Question 401986</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Working on radicals and do pretty well, but an struggling with a real life application problem that I don't know where to even start with.  I've spent a couple hours trying where to go, but am totally stumped.\r<BR>\n" );
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document.write( "Using the equation w=Cr^(-2),\r<BR>\n" );
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document.write( "Suppose that an object is 100 pounds when it is at sea level (3,963 miles from the center of the earth).  Find the value of C that makes the equation true.\r<BR>\n" );
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document.write( "I appreciate any help you can give me!  Thanks so much! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #284417 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=284417\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> r^(-2) is the same as [1 / (r^2)]<BR>\n" );
document.write( "this should not be a surprise, as gravity follows the inverse-square law\r<BR>\n" );
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document.write( "multiplying by r^2 ___ wr^2 = C\r<BR>\n" );
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document.write( "substituting ___ (100 lb)(3963 mi)^2 = C </SPAN>\n" );
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