document.write( "Question 915410: The diameter of an iron ball used in putting the shot is 12cm.The density of the iron is 7.8g/cm*3.Calculate the mass of the ball in kg to 3significant figures \n" ); document.write( "

Algebra.Com's Answer #555588 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "V = (4/3)pi*r^3 = 288pi
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document.write( "mass =7.8(288pi)g
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document.write( "pi = 3.14 \n" );
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