A piece of rock is in equilibrium at the bottom of a beaker filled with water. Which of the following statements is CORRECT? The buoyant force has a lower magnitude than the weight of the rock. O The normal force and the weight of the rock have equal magnitudes. O The rock experiences a net upward force due to buoyancy. O The weight of the rock is equal to the weight of the fluid it displaced.
A piece of rock is in equilibrium at the bottom of a beaker filled with water. Which of the following statements is CORRECT? The buoyant force has a lower magnitude than the weight of the rock. O The normal force and the weight of the rock have equal magnitudes. O The rock experiences a net upward force due to buoyancy. O The weight of the rock is equal to the weight of the fluid it displaced.
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Transcribed Image Text:A piece of rock is in equilibrium at the bottom of a beaker
filled with water. Which of the following statements is
CORRECT?
O The buoyant force has a lower magnitude than the weight of the
rock.
O The normal force and the weight of the rock have equal
magnitudes.
O The rock experiences a net upward force due to buoyancy.
The weight of the rock is equal to the weight of the fluid it
displaced.
Transcribed Image Text:Which of the following statements is true about an
incompressible fluid moving through a horizontal pipe?
O The volume per unit time is smaller at sections with larger cross-
sectional areas.
O The volume per unit time is larger at sections with larger cross-
sectional areas.
It slows down at sections with larger cross-sectional areas.
O It experiences lower pressure at sections with larger cross-
sectional areas.
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