You are working at the National Blood Service Clinical Studies Unit. Recently you have been investigating blood flow in arteries. A 5.5 cm long section of an artery of cylindrical shape is found to have a diameter of about 0.34 mm. If the average mass of blood in this artery section is estimated to be 6.9x10-3 g, determine the density of the blood , by presenting your answer in standard form and to the correct number of significant figures.
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1.3825 * 10³ kg/m³ or 1.3825 g/cm³
Step-by-step explanation:
5.5 cm long section of an artery of cylindrical shape is found to have a diameter of about 0.34 mm
Cylindrical shape
radius r = Diameter/2 = 0.34/2 = 0.17 mm
Length /Height h = 5.5 cm = 55 mm
(as 1 cm = 10 mm)
Volume = πr²h
= 3.14 * (0.17)² * 55
= 4.99103 mm³
Mass = 6.9x10⁻³g
Density = Mass/Volume
= 6.9 x10⁻³ /4.99103
= 1.3825 x10⁻³ g/mm³
1 cm ³ = 1000 mm³
=> 1 mm³ = 10⁻³ cm ³
= 1.3825 g/cm³
= 1.3825 * 10³ kg/m³
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