A borehole of depth 2000 m contains both oil and water, as shown. The pressure due to the liquids at the bottom of the borehole is 17.5MPa. The density of the oil is 830 kg m⁻³ and the density of the water is 1000 kg m⁻³. [Figure showing oil and water in a borehole, with depth x for oil and total depth 2000 m] What is the depth x of the oil?
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The correct answer is D. This question tests the candidate's understanding of forces, density and pressure within the Physicssyllabus. The examiner's mark scheme requires...
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Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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