A cylindrical disk of Figure E12.21 -30.0 cm- wood weighing 45.0 N and hav- ing a diameter of 30.0 cm floats on a cylinder of oil of density 0.850 g/cm (Fig. E12.21). The cylinder of oil is 75.0 cm deep and has a diameter the same as Wooden disk Oil that of the wood. (a) What is the gauge pressure at the top of the oil column? (b) Suppose now that someone puts a weight of 83.0 N on top of the wood, but no oil seeps around the edge of the wood. What is the change 75.0 cm in pressure at (i) the bottom of the oil and (ii) halfway down in the oil?

A cylindrical disk of Figure E12.21 -30.0 cm- wood weighing 45.0 N and hav- ing a diameter of 30.0 cm floats on a cylinder of oil of density 0.850 g/cm (Fig. E12.21). The cylinder of oil is 75.0 cm deep and has a diameter the same as Wooden disk Oil that of the wood. (a) What is the gauge pressure at the top of the oil column? (b) Suppose now that someone puts a weight of 83.0 N on top of the wood, but no oil seeps around the edge of the wood. What is the change 75.0 cm in pressure at (i) the bottom of the oil and (ii) halfway down in the oil?

Name: A cylindrical disk of Figure E12.21-30.0 cm-wood weighing 45.0 N and
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Description: A cylindrical disk of Figure E12.21-30.0 cm-wood weighing 45.0 N and hav-ing a diameter of 30.0 cm floatson a cylinder of oil of density0.850 g/cm (Fig. E12.21). Thecylinder of oil is 75.0 cm deepand has a diameter the same asWoodendiskOilthat of th

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter15: Fluid Mechanics

Section: Chapter Questions

Problem 3CQ: Two thin-walled drinking glasses having equal base areas but different shapes, with very different...

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Concept explainers

Fluid Pressure

The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.

Gauge Pressure

Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.

Topic Video

Question

A cylindrical disk of Figure E12.21
-30.0 cm-
wood weighing 45.0 N and hav-
ing a diameter of 30.0 cm floats
on a cylinder of oil of density
0.850 g/cm (Fig. E12.21). The
cylinder of oil is 75.0 cm deep
and has a diameter the same as
Wooden
disk
Oil
that of the wood. (a) What is the
gauge pressure at the top of the
oil column? (b) Suppose now
that someone puts a weight of
83.0 N on top of the wood, but
no oil seeps around the edge of
the wood. What is the change
75.0
cm
in pressure at (i) the bottom of
the oil and (ii) halfway down
in the oil?

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