Determine weight and density of metal in kg per meter cubed, Physics

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A block of metal which weighs 60 newtons in air and 40 newtons under water has a density, in kilograms per meter cubed, of:

a) 1000

b) 3000

c) 5000

d) 7000

Ans:

A block of metal that weighs 60 newtons in air and 40 newtons in water has a density, in kilograms per meter cubed, of 3000.


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