An iron casting containing a number of cavities weighs 23909.1 N in air and 19693.7 N...
An iron casting containing a number of cavities weighs 23909.1 N in air and 19693.7 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
apparant weight = actual weight - byount force
=> 19693.7 = 23909.1 - V*(density of liquid)*g
=> 19693.7 = 23909.1 - V*(1000*9.8)
=> V = 0.430 m^3
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