A-LevelPhysicsForces, density and pressure9702/12 · May/June 2015 · Q201 Mark
The maximum pressure that granite rock can withstand is 2.0 × 10⁸ N m⁻². Above this pressure, the rock begins to flow like a liquid. The density of granite is 2.7 × 10³ kg m⁻³. What would be the height of a pure granite mountain whose base is just beginning to flow?
A3.8 × 10³ m
B7.6 × 10³ m
C3.7 × 10⁴ m
D7.4 × 10⁴ m
✓ Correct answer
B: 7.6 × 10³ m
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