Question 1125004
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A measuring cylinder contains 20cm^3 of water. When ten identical {{{highlight(cross(stell))}}} <U>steel</U> balls are immersed in water the water level 
rises to 50cm^3. If one ball has mass of 27g, what is the density of {{{highlight(cross(stell))}}} <U>steel</U> in g cm^-3?
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<pre>
The volume of one ball (of each of the ten identical balls) is  {{{(50-20)/10}}} = 3 cubic centimeters.


Hence, the steel density is  {{{27/3}}} = 9 gram per cubic centimeter.
</pre>

Solved.