document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=951049>Question 951049</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A hollow metal sphere has an internal radius of 20cm and an external radius of 30cm. Given that the density of the metal is 7.8g/cm^3, find the mass of the sphere, expressing ur answer in kg. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #580869 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=580869\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A hollow metal sphere has an internal radius of 20cm and an external radius of 30cm.<BR>\n" );
document.write( " Given that the density of the metal is 7.8g/cm^3, find the mass of the sphere, expressing ur answer in kg.<BR>\n" );
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document.write( "Find the vol of the outer and inner spheres <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V+=+4%2F3 ALIGN=MIDDLE  ALT=\"V+=+4%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=pi%2Ar%5E3 ALIGN=MIDDLE  ALT=\"pi%2Ar%5E3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2F3 ALIGN=MIDDLE  ALT=\"4%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=pi%2A30%5E3 ALIGN=MIDDLE  ALT=\"pi%2A30%5E3\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 113097.3355<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2F3 ALIGN=MIDDLE  ALT=\"4%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=pi%2A20%5E3 ALIGN=MIDDLE  ALT=\"pi%2A20%5E3\"   DISABLED_style= \"max-width:90%; height:auto;\" > =  33510.3216<BR>\n" );
document.write( "--------------------------------------Subtraction gives vol of metal<BR>\n" );
document.write( "differ:  79587.014 cu/cm<BR>\n" );
document.write( "Find the weight in grams<BR>\n" );
document.write( "7.8 * 79587.014 = 620778.71 grams<BR>\n" );
document.write( "find the weight in kg<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=620778.71%2F1000 ALIGN=MIDDLE  ALT=\"620778.71%2F1000\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 620.78 kg\r<BR>\n" );
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