Physics (AS & A Level) · Oct / Nov 2022 · Paper 12 · Question 15
A solid cube is floating in equilibrium in liquid mercury. The cube is made of iron of density 7900 kg m⁻³. The cube floats with 42% of its volume above the surface of the mercury. What is the density of the mercury?
- A3300 kg m⁻³
- B4600 kg m⁻³
- C14 000 kg m⁻³
- D19 000 kg m⁻³
As printed in the paper
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Correct answer: C. 14 000 kg m⁻³
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