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.