A test cylinder of rock has a diameter of 12.6 cm and a length of 14 cm. When dry its weight is 50 N. When saturated with mercury the weight of the sample is 62.8 N. The specific gravity of mercury is 13.6. Find the porosity of the rock

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A:     Since you have asked multiple questions, we will solve the first question for you. If you want a...

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A: Yes i agree with this statement. 

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Q: N

A: For question no 28 option A will be the correct answer.