Posted by madelyn on Tuesday, September 20, 2011 at 5:33pm.
D=2700kg/m^3*1000g/kg*(1/10^5)m^3/cm^3
D = 27g/cm^3.
V = 5.4g * (1/27)cm^3/g = 0.2cm^3.
50cm * 20cm * Xcm = 0.2cm^3,
1000x = 0.2,
X = 2*10^-4 = 0.0002.cm thick.
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