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Question 4

From Physics HL Paper 1A (May 2025, TZ1)

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  1. A sphere of density ρ\rho and radius RR rests on the bottom of a tank of water. The buoyancy force on the sphere is F1F_1.
    A sphere of density 2ρ2\rho and radius R2\frac{R}{2} is at the bottom of the same tank. The buoyancy force on the second sphere is F2F_2.
    What is F1F2\frac{F_1}{F_2}?

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