Consider two vertical tubes of equal cross-section area, one containing water and the other mercury. If the liquid pressures at the bottom of the tubes are equal, both liquids would have equal

A) volumes.
B) densities.
C) weights.
D) number of molecules.
E) none of the above


Answer: C

Physics & Space Science

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Explain how the specific heats of materials are measured using the technique of calorimetry

What will be an ideal response?

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A 0.20-m radius grinding wheel starts at rest and develops an angular speed of 12.0 rad/s in 4.0 s. What is the average tangential acceleration of a point on the wheel's edge?

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