document.write( "Question 389561: A solid metal model of a rocket is made by fastening a cone of vertical height 49 cm and base radius 18 cm to a circular cylinder of length 192 cm and radius 18 cm. If the mass of the model is 2145 kg, calculate the density of the metal in kg/m^3, giving your answer correct to the nearest whole number. :) \n" ); document.write( "
Algebra.Com's Answer #276347 by mananth(16946)\"\" \"About 
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A solid metal model of a rocket is made by fastening a cone of vertical height 49 cm and base radius 18 cm to a circular cylinder of length 192 cm and radius 18 cm. If the mass of the model is 2145 kg, calculate the density of the metal in kg/m^3, giving your answer correct to the nearest whole number. :)
\n" ); document.write( "...
\n" ); document.write( "height of cone = 49cm= 0.49m
\n" ); document.write( "base radius = 18 cm = 0.18 m
\n" ); document.write( "...
\n" ); document.write( "Volume of cone V= 1/3 * pi*r^2*h
\n" ); document.write( "V= 1/3 * pi*(0.18)^2*0.49
\n" ); document.write( "V= 0.0166 m^3
\n" ); document.write( "...
\n" ); document.write( "Volume of cylinder = pi*r^2*h
\n" ); document.write( "r=18cm=0.18m
\n" ); document.write( "height = 192 cm = 1.92 m
\n" ); document.write( "Volume = pi*(0.18)^2*1.92
\n" ); document.write( "V= 0.195 m^3
\n" ); document.write( "Total volume = 0.0166+0.195
\n" ); document.write( "Volume = 0.211 m^3...
\n" ); document.write( "Density = Mass/Volume
\n" ); document.write( "Density = 2145/0.211
\n" ); document.write( "Density =10,165kg/m^3
\n" ); document.write( "...
\n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( "
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