Question 1129384
Find density of iron in pounds/cubic inch
Volume of iron plate:
{{{ V = 12*12*1 = 144 }}} in3
Density:
{{{ 37.5/144 = .26042 }}} lbs/in3
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Find volume of circular disk
{{{ V = (22/7)*42^2*(4/3) }}} in3
{{{ V = ( 88/21 )*1764 }}}
{{{ V = 7392 }}} in3
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[ weight ] = [ density ] x [ volume ]
{{{ W = .26042*7392 }}}
{{{ W = 1925.025 }}} pounds
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