Chapter 14: Q. 8 (page 383)
Blocks a, b, and c in FIGURE Q14.7 have the same density. This
Short Answer
The figure given with 3 objects with same density is submerged in liquid.
Chapter 14: Q. 8 (page 383)
Blocks a, b, and c in FIGURE Q14.7 have the same density. This
The figure given with 3 objects with same density is submerged in liquid.
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Get started for freeAn aquarium of length , width (front to back) , and depth is filled to the top with liquid of density
a. Find an expression for the force of the liquid on the bottom of the aquarium.
b. Find an expression for the force of the liquid on the front window of the aquarium.
c. Evaluate the forces for a-long, deep aquarium filled with water.
Geologists place tiltmeters on the sides of volcanoes to measure the displacement of the surface as magma moves inside the volcano. Although most tiltmeters today are electronic, the traditional tiltmeter, used for decades, consisted of two or more water-filled metal cans placed some distance apart and connected by a hose. FIGURE shows two such cans, each having a window to measure the water height. Suppose the cans are placed so that the water level in both is initially at the mark. A week later, the water level in can is at the mark.
A. Did can move up or down relative to can ? By what distance?
B. Where is the water level now in can ?
Disk brakes, such as those in your car, operate by using pressurized oil to push outward on a piston. The piston, in turn, presses brake pads against a spinning rotor or wheel, as seen in. Consider a industrial grinding wheel, in diameter, spinning at . The brake pads are actuated by diameter pistons, and they contact the wheel an average distance from the axis. If the coefficient of kinetic friction between the brake pad and the wheel is , what oil pressure is needed to stop the wheel in ?
In FIGURE Q14.5, is pA larger than, smaller than, or equal to pB? Explain
A U-shaped tube, open to the air on both ends, contains mercury. Water is poured into the left arm until the water column is deep. How far upward from its initial position does the mercury in the right arm rise?
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