document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=204207>Question 204207</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The Schwarzschild radius describes the critical value to which the radius of a massive body must be reduced fot it to become a black hole.\r<BR>\n" );
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document.write( "R= 2GM/c^2<BR>\n" );
document.write( "where<BR>\n" );
document.write( "G= gravitational constant 6.7x10^-11<BR>\n" );
document.write( "M=mass of the object<BR>\n" );
document.write( "C= speed of light 3x10^8<BR>\n" );
document.write( "The sun has M= 2x10^30  What is Schwarzschild radius for the sun? [Note it's true radius is 700,000.] </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #154172 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=154172\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The Schwarzschild radius describes the critical value to which the radius of a<BR>\n" );
document.write( " massive body must be reduced for it to become a black hole.<BR>\n" );
document.write( "R= 2GM/c^2<BR>\n" );
document.write( "where<BR>\n" );
document.write( "G= gravitational constant 6.7x10^-11<BR>\n" );
document.write( "M=mass of the object<BR>\n" );
document.write( "C= speed of light 3x10^8<BR>\n" );
document.write( "The sun has M= 2x10^30 <BR>\n" );
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document.write( "What is Schwarzschild radius for the sun? [Note it's true radius is 700,000.]<BR>\n" );
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document.write( "R = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2GM%2Fc%5E2 ALIGN=MIDDLE  ALT=\"2GM%2Fc%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Wouldn't just be:<BR>\n" );
document.write( "R = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%286.7%2810%5E-11%29%29%2A+2%2810%5E30%29%29%2F%283%2810%5E8%29%29%5E2 ALIGN=MIDDLE  ALT=\"%282%286.7%2810%5E-11%29%29%2A+2%2810%5E30%29%29%2F%283%2810%5E8%29%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%286.7%2810%5E-11%29%29%2A+2%2810%5E30%29%29%2F%289%2810%5E16%29%29 ALIGN=MIDDLE  ALT=\"%282%286.7%2810%5E-11%29%29%2A+2%2810%5E30%29%29%2F%289%2810%5E16%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=26.8%2810%5E%28%2830-11-16%29%29%29%2F9 ALIGN=MIDDLE  ALT=\"26.8%2810%5E%28%2830-11-16%29%29%29%2F9\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2.98%2810%5E3%29 ALIGN=MIDDLE  ALT=\"2.98%2810%5E3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > m<BR>\n" );
document.write( "Which is about 3 km<BR>\n" );
document.write( " </SPAN>\n" );
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