A-LevelPhysicsForces, density and pressure9702/12 · May/June 2012 · Q231 Mark
A pipe is closed at one end and contains gas, trapped by a column of water. [Figure 23.1] The atmospheric pressure is 1.0 × 10⁵ Pa. The density of water is 1000 kg m⁻³. What is the pressure of the gas? (Use g = 10 ms⁻².)
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A0.3 × 10⁵ Pa
B0.5 × 10⁵ Pa
C1.5 × 10⁵ Pa
D1.7 × 10⁵ Pa
✓ Correct answer
C: 1.5 × 10⁵ Pa
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