Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Chapter 12.2, Problem 1bT
(1)
To determine
To Draw: The free body diagram for the block at the instant it is released.
(2)
To determine
To Compare: The free body diagram of the block that sinks with the block that floats.
The forces that are different than the previous case.
(3)
To determine
To draw: The vector sum of all the forces on the block and compare it with the block that floats.
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Students have asked these similar questions
Water travels through a garden hose of inner radius 1.9 cm (labelled as R on the
diagram below) at a speed of 16 cm/s. If the speed of the water at the nozzle is 35
cm/s, what is the inner radius of the nozzle in cm (labelled as r below)? Give your
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Activity A (continued from previous page)
4. Analyze: Look carefully for patterns in your data.
A. Does mass alone determine whether an object will float or sink?
Explain:
B. Does volume alone determine whether an object will float or sink?
Explain:
C. Compare the mass and volume of each object. What is true of the mass and volume
of all the floating objects?
D. What is true of the mass and volume of all the sinking objects?
5. Calculate: The density of an object is its mass per unit of volume. Dense objects feel very
heavy for their size, while objects with low density feel very light for their size.
To calculate density, divide the mass by volume: D = m/N. If mass is measured in grams
and volume in cubic centimeters, the unit of density is grams per cubic centimeter (g/cm)
Calculate the density of each object, and record the answers in the last column of your data
table. Label this column "Density (g/cm³)."
6. Analyze: Compare the density of each object to the density of the liquid,…
Liquid A is known to have a lower surface tension and lower viscosity than Liquid B.
Use these facts to predict the result of each experiment in the table below, if you can.
experiment
35.0 mL each of Liquid A and Liquid B are
poured through a funnel, and the times t
and the needed to pour each liquid through
the funnel are measured.
Identical wire loops are dipped into Liquid A
and Liquid B, so that a film of liquid forms
across the loops (like the bubble solution on a
child's bubble blowing wand). The width of
each loop is increased slowly and the forces
F and FB needed to make the loops 5%
wider are measured.
will be greater than t
will be less than f
Ot will be equal to f
predicted outcome
It's impossible to predict whether or fB will be
greater without more information.
F will be greater than FB
will be less than FB
OFA will be equal to FB
O
A
It's impossible to predict whether For FB will
be greater without more information.
X
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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