document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=99513>Question 99513</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Could you please help me with this word problem.<BR>\n" );
document.write( "Science and medicine. Alkaid, the most distant star in the Big Dipper, is<BR>\n" );
document.write( "2.1 X 10^18 m from the Earth. Approximately how long does it take light to travel from Alkaid to the Earth?\r<BR>\n" );
document.write( "\n" );
document.write( "Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #72383 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=72383\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> c=3X10^8 m/sec ... (2.1X10^18 m)/(3X10^8 m/sec)=7X10^9 sec\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "(60sec/min)(60min/hr)(24hr/day)(365day/yr)=3.16X10^7 sec/yr\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "(7X10^9 sec)/(3.16X10^7 sec/yr)=2.22X10^2 yr </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );