Question

What is tha specific gravity of the metal,if tha piece of metal weighs 150 grams in air and 125 grams in water?

Answer 1

Answer:

Given What is the specific gravity of the metal, if the piece of metal weighs 150 grams in air and 125 grams in water?  

   Now specific gravity is given by weight of object / weight of same volume of water

   Buoyancy or upthrust is an upward force exerted by a fluid that opposes the weight of an immersed object.

   Now Buoyancy is given by weight of displaced water = 150 – 120 = 30 grams

   Therefore Specific gravity of metal will be = 150 / 30  

                                                                        = 5

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