Physics (AS & A Level) · Oct / Nov 2017 · Paper 22 · Question 3
9702
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The question as text
A spring is attached at one end to a fixed point and hangs vertically with a cube attached to the other end. The cube is initially held so that the spring has zero extension, as shown in Fig. 3.1. cube weight 4.0 N water density 1000 kg m–3 spring with zero extension 5.1 cm 5.1 cm 7.0 cm Fig. 3.1 Fig. 3.2 The cube has weight 4.0 N and sides of length 5.1 cm. The cube is released and sinks into water as the spring extends. The cube reaches equilibrium with its base at a depth of 7.0 cm below the water surface, as shown in Fig. 3.2. The density of the water is 1000 kg m–3.
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3(a)[2]
3(b)[2]
3(c)[1]
3(d)[3]
3(e)(i)[2]
3(e)(ii)[2]
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