SPECIFIC GRAVITY. 



EXEKCISES. 



Wote.Be on the alert to recognize Archimedes' Principle in 

 disguise. Consider the weight of water 62| Ibs. per cubic foot. 



The numbers obtained for the right hand column may be either 

 plus or minus ; the former sign denotes weight in the fluid ; the 

 latter, the load it could support in the fluid. 



11. A bone weighs 2.6 ounces in water and 6.6 ounces in air; 

 what is its specific gravity ? 



12. A body weighing 453 g. weighs in water 429.6 g.; what is its 

 specific gravity ? 



13. A piece of metal weighing 52.35 g. is placed in a cup filled 

 with water. The overflowing water weighed 5 g. What was the 

 specific gravity of the metal ? 



14. (a.) A solid weighing 695 g. loses in water 83 g. ; what is its 

 specific gravity ; (&) how much would it weigh in alcohol of specific 

 gravity 0.792? 



15. A 1000 grain bottle will hold 708 grains of benzoline. Find 

 the specific gravity of the benzoline. 



16. A solid which weighs 2.4554 oz. in air, weighs only 2.0778 oz. 

 in water. Find its specific gravity. 



17. A specimen of gold which weighs 4.6764 g. in air loses 0.2447 

 g. weight when weighed in water. Find its specific gravity. 



18. A ball weighing 970 grs., weighs in water 895 grs., in alcohol 

 910 grs. ; find the specific gravity of the alcohol. 



19. A body loses 25 grs. in water, 23 grs. in oil, and 19 grs. in 

 alcohol. Required the specific gravity of the oil and the alcohol. 



