Physics Laboratory Experiments
8th Edition
ISBN: 9781285738567
Author: Jerry D. Wilson, Cecilia A. Hernández-Hall
Publisher: Cengage Learning
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Textbook Question
Chapter 21, Problem 6ASA
Why is it important to make certain that no air bubbles adhere to objects during the submerged weighing procedures? How would the experimental results be affected if bubbles were present? Is this a random or systematic error? (See Experiment 2.)
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Chapter 21 Solutions
Physics Laboratory Experiments
Ch. 21 - Prob. 1ASACh. 21 - Show that the buoyant force is given by Fb = fgVf...Ch. 21 - Give the conditions on densities that determine...Ch. 21 - Distinguish between density and specific gravity,...Ch. 21 - Describe how the density of an object less dense...Ch. 21 - Why is it important to make certain that no air...Ch. 21 - In Part B, the string will cause error. When does...Ch. 21 - Discuss the situation that occurs when an object...Ch. 21 - (a) Explain how a submarine is caused to submerge...Ch. 21 - A block of wood floats in a beaker of water....
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- What are the air-standard assumptions?arrow_forwardAssume we had accidentally submerged our cube in such a fashion that cube lightly touches the bottom surface of the beaker. Which of the following describes the effect of this poor experimental technique? a. The apparent mass is too small and the calculated density is now too large. b. The apparent mass is too large and the calculated density is now too small. c. The apparent mass is too small and the calculated density is now too large. d. The apparent mass is too small and the calculated density is now too small.arrow_forwardA toy duck is floating on the water. The average density of the duck is ρd = 580 kg/m3, while the density of water is ρ = 1.0 × 103 kg/m3. The volume of the duck is Vd = 0.00013 m3. Randomized Variables ρd = 580 kg/m3Vd = 0.00013 m3 a. Express the weight of the duck, W, in terms of ρd and Vd. b. Calculate the numerical value of W in newtons. c. Express the magnitude of the buoyant force, F, in terms of ρ and the volume of water that the duck displaces, Vw. d. Express the volume of the duck in water, Vw, in terms of ρ, ρd and Vd. e. Calculate the numerical value of the volume of the duck in water, Vw in cubic meters.arrow_forward
- A toy duck is floating on the water. The average density of the duck is ρd = 760 kg/m3, while the density of water is ρ = 1.0 x 103 kg/m3. The volume of the duck is Vd = 0.00011 m3.Randomized Variables ρd = 760 kg/m3Vd = 0.00011 m3 a) Express the weight of the duck, W, in terms of ρd and Vd. b)Calculate the numerical value of W in Newtons. c) Express the magnitude of the buoyant force, F, in terms of ρ and the volume of water that the duck displaces, Vw.arrow_forwardProve that, the dimensional analysis of the physical quantities forces, pressure and energy are MLT-2 , ML-1T-2 and ML2T-2 respectivelyarrow_forwardWhat is the ratio of the average distances that oxygen willdiffuse in a given time in air and water? Why is this distanceless in water (equivalently, why is D less in water)?arrow_forward
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- The pressure difference between an oil tube and a water tube is measured with a dual fluid manometer, as shown in the figure. For specific heights and gravities given of the fluids. Calculate (PB - PA)arrow_forwardCalculate the gauge pressures inside 2.00-cm-radiusbubbles of water, alcohol, and soapy water. Which liquidforms the most stable bubbles, neglecting any effects ofevaporation?arrow_forwardTo explore the bottom of a 10-m-deep lake, your friend Tom proposes to get a long garden hose, put one end on land and the other in his mouth for breathing underwater, and descend into the depths. Susan, who overhears the conversation, reacts with horror and warns Tom that he will not be able to inhale when he is at the lake bottom. Why is Susan so worried?arrow_forward
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