Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Chapter 12.1, Problem 2bT
Suppose you wanted to determine the pressure at the top surface of layer 1. Which force would you use to determine this pressure? If necessary, modify your free-body diagrams to include this force. Be sure to label your diagram to indicate the object that exerts this force.
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A chemistry graduate student is designing a pressure vessel for an experiment. The vessel will contain gases at pressures up to 220.0 MPa.
The student's design calls for an observation port on the side of the vessel (see diagram below). The bolts that hold the cover of this port onto
the vessel can safely withstand a force of 10.00 MN.
pressure vessel
bolts
alo
W
Ar
side
view
port
Calculate the maximum safe diameter w of the port. Round your answer to the nearest 0.1 cm.
cm
x1
Explanation
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Hi Staffs,
Why is pressure a function of depth not volume? Please provide a real-world example that normally a student can relate to. It makes sense to me mathematically that the units match in the pressure formula P = pgh.
My thoughts:
If I think of the pressure difference between the bottom of the Pacific Ocean (let's say exactly 4km deep and let's say exactly 15000km wide) and an open cylinder with a width of 50cm and a depth just 1cm deeper than the bottom of the Pacific Ocean floor, I do not see how the pressure at the bottom of the cylinder is greater.
Take care
An oil drop with the diameter of 1mm, is in the contact
with the air with the pressure of 80 KN/m2.
i. Find the dimension of surface tension in MLT
system
ii. If the surface tension of the drop be 42.27x103
N/m, find the pressure difference of the drop.
iii. Calculate the internal pressure of the drop.
iv. Explain briefly, if the oil drop replace by oil bubble,
what changes will happen in internal pressure?
Chapter 12 Solutions
Tutorials in Introductory Physics
Ch. 12.1 - For each layer, draw a free-body diagram in the...Ch. 12.1 - Imagine that a small hole is opened in the...Ch. 12.1 - Prob. 2aTCh. 12.1 - Suppose you wanted to determine the pressure at...Ch. 12.1 - Prob. 2cTCh. 12.1 - Prob. 2dTCh. 12.1 - Draw a freebody diagram for the small voulme of...Ch. 12.1 - Prob. 3bTCh. 12.1 - Use your answer to part B to compare the pressures...Ch. 12.1 - Prob. 3dT
Ch. 12.1 - Consider the following student dialogue: Student...Ch. 12.1 - Prob. 4aTCh. 12.1 - The right end of the tube is now scaled with a...Ch. 12.1 - A syringe is used to remove some water from the...Ch. 12.2 - A cubical block is observed to float in a beaker...Ch. 12.2 - Prob. 1bTCh. 12.2 - Imagine that you were to release the block from...Ch. 12.2 - In general, does the buoyant force on an object...Ch. 12.2 - By how much does the volume reading increase when...Ch. 12.2 - Does the volume of water displaced by a completely...Ch. 12.2 - Consider the following statement made by a...Ch. 12.2 - A rectangular block, A, is released from rest at...Ch. 12.2 - A second block, B,of the same size and shape as A...Ch. 12.2 - A third block, C, of the same size and shape as A...
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