document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=466186>Question 466186</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the half-life of the radioactive element unobtanium-47 is 5 seconds. If 80 grams of this are initially present, how many grams are present after 5 seconds? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #319608 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=319608\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 40 grams (after five seconds, one half-life has elapsed).\r<BR>\n" );
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document.write( "Fortunately, the half-life of unobtanium is longer than 5 seconds. Otherwise, Avatar's Hallelujah Mountains would become lose its magnetic fields (as unobtanium is theoretically a superconductor) and crash to the ground. </SPAN>\n" );
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