Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (Chs 1-42) Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition)
4th Edition
ISBN: 9780133953145
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
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Chapter 18, Problem 3EAP
What is the diameter of a copper sphere that has the same mass as a 10 cm × 10 cm × 10 cm cube of aluminum?
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PROBLEM 2
A cube of mass m is placed in a rotating funnel.
(The funnel is rotating around the vertical axis shown
in the diagram.) There is no friction between the cube
and the funnel but the funnel is rotating at just the
right speed needed to keep the cube rotating with the
funnel. The cube travels in a circular path of radius r,
and the angle between the vertical and the wall of the
funnel is 0. Express your answers to parts (b) and (c)
in terms of m, r, g, and/or 0.
(a) Sketch a free-body diagram for the cube. Show
all the forces acting on it, and show the appropriate
coordinate system to use for this problem.
(b) What is the normal force acting on the cube?
FN=mg58
(c) What is the speed v of the cube?
(d) If the speed of the cube is different from what you
determined in part (c), a force of friction is necessary
to keep the cube from slipping in the funnel. If the
funnel is rotating slower than it was above, draw a
new free-body diagram for the cube to show which
way friction…
Chapter 18 Solutions
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (Chs 1-42) Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition)
Ch. 18 - Prob. 1CQCh. 18 - Prob. 2CQCh. 18 - Prob. 3CQCh. 18 - Prob. 4CQCh. 18 - Prob. 5CQCh. 18 - Prob. 6CQCh. 18 - Prob. 7CQCh. 18 - Prob. 8CQCh. 18 - Prob. 9CQCh. 18 - A gas undergoes the process shown in FIGURE...
Ch. 18 - Prob. 11CQCh. 18 - Prob. 12CQCh. 18 - Prob. 1EAPCh. 18 - Prob. 2EAPCh. 18 - What is the diameter of a copper sphere that has...Ch. 18 - Prob. 4EAPCh. 18 - Prob. 5EAPCh. 18 - How many atoms are in a 2.0 cm × 2.0 cm × 2.0 cm...Ch. 18 - Prob. 7EAPCh. 18 - An element in its solid phase has mass density...Ch. 18 - .0 mol of gold is shaped into a sphere. What is...Ch. 18 - What volume of aluminum has the same number of...Ch. 18 - Prob. 11EAPCh. 18 - Prob. 12EAPCh. 18 - Prob. 13EAPCh. 18 - A concrete bridge is built of 325-cm-long concrete...Ch. 18 - A surveyor has a steel measuring tape that is...Ch. 18 - Two students each build a piece of scientific...Ch. 18 - Prob. 17EAPCh. 18 -
18. What is the temperature in °F and the...Ch. 18 - Prob. 19EAPCh. 18 - .0 mol of gas at a temperature of -120°C fills a...Ch. 18 - Prob. 21EAPCh. 18 - Prob. 22EAPCh. 18 - Prob. 23EAPCh. 18 - Prob. 24EAPCh. 18 - Prob. 25EAPCh. 18 - Prob. 26EAPCh. 18 - Prob. 27EAPCh. 18 - Prob. 28EAPCh. 18 - A rigid, hollow sphere is submerged in boiling...Ch. 18 -
30. A rigid container holds hydrogen gas at a...Ch. 18 - Prob. 31EAPCh. 18 - Prob. 32EAPCh. 18 - Prob. 33EAPCh. 18 - Prob. 34EAPCh. 18 - Prob. 35EAPCh. 18 - Prob. 36EAPCh. 18 - Prob. 37EAPCh. 18 - .0050 mol of gas undergoes the process 1 2 3...Ch. 18 - Prob. 39EAPCh. 18 - Prob. 40EAPCh. 18 - Prob. 41EAPCh. 18 - Prob. 42EAPCh. 18 - Prob. 43EAPCh. 18 - A 15°C, 2.0-cm-diameter aluminum bar just barely...Ch. 18 - Prob. 45EAPCh. 18 - Prob. 46EAPCh. 18 - Prob. 47EAPCh. 18 - Prob. 48EAPCh. 18 - Prob. 49EAPCh. 18 - The 3.0-m-long pipe in FIGURE P18.50 is closed at...Ch. 18 - Prob. 51EAPCh. 18 - An electric generating plant boils water to...Ch. 18 - Prob. 53EAPCh. 18 - The air temperature and pressure in a laboratory...Ch. 18 - Prob. 55EAPCh. 18 - The mercury manometer shown in FIGURE P18.56 is...Ch. 18 - Prob. 57EAPCh. 18 - The 50 kg circular piston shown in FIGURE P18.58...Ch. 18 - Prob. 59EAPCh. 18 - .0 g of helium gas follows the process 1? 2 ?3...Ch. 18 - Prob. 61EAPCh. 18 - 62. FIGURE P18.62 shows two different processes...Ch. 18 - Prob. 63EAPCh. 18 - Prob. 64EAPCh. 18 - Prob. 65EAPCh. 18 - Prob. 66EAPCh. 18 - Prob. 67EAPCh. 18 - Prob. 68EAPCh. 18 - Prob. 69EAPCh. 18 - Prob. 70EAPCh. 18 - Prob. 71EAPCh. 18 - The cylinder in FIGURE CP18.72 has a moveable...Ch. 18 - Containers A and B in FIGURE CP18.73 hold the same...Ch. 18 - Prob. 74EAP
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