If one of the caissons of the Falkirk Wheel contained a sunken boat, resting on its bottom, and the other carried a floating boat, the wheel balance would
A) still be maintained.
B) be upset and more energy would be needed for operation.
C) render the machine useless.
D) violate Archimedes' principle.
Question 2
Ice cubes submerged at the bottom of a liquid mixture indicate that the mixture
A) fails to produce a buoyant force on the ice.
B) has dissolved air in a liquid state.
C) is composed of open-structured crystals.
D) is less dense than ice.
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