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Evan Toh
Nov 30, 20231 min read
Find atmospheric pressure using 2 scenarios of capillary tube with mercury horizontal and vertical
A uniform capillary tube closed at one end, contained air trapped by a thread of mercury 85 mm long. When the tube was held horizontal,...
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Evan Toh
Nov 30, 20231 min read
N2007P1Q9 Pure Physics – Energy needed to pump water up a building
Answer: Option B Since water will naturally reach 40m high from the bottom of the apartment, you only need to pump the water up by a...
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Evan Toh
Nov 30, 20231 min read
Relationship between Pressure and Length of a Cube
Answer: Option A
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Evan Toh
Nov 30, 20231 min read
Liquid pressure – U-tube manometer question
A U-tube with 30 cm of water is set up vertically and 12 cm of olive oil is poured carefully into the left-hand limb of the tube as shown...
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