An iron casting containing a number of cavities weighs 23137.8 N in air and 18521.5 N...
An iron casting containing a number of cavities weighs 23137.8 N in air and 18521.5 N in water. What is the total volume of all the cavities in the casting? The density of iron ( that is a sample with no cavities) is 7.87 g/cm3.
Homework Answers
apparent weight = actual weight - byont force ( density of water * g *V)
=> 18521.5 = 23137.8 - 1000*9.8*V
=> V = 0.47 m^3
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