Select two questions as take-home investigation (Worked as homework and pictured them.)(1) Try floating a sewing needle on water. In order for this activity to work, the needle needsto be very clean as even the oil from your fingers can be sufficient to affect the surfaceproperties of the needle.(2) Place the bristlesE of a paint brush into water. Pull the brush out and notice that for ashort while, the bristles will stick together. The surface tension of the water surrounding thebristles is sufficient to hold the bristles together. As the bristles dry out, the surface tensioneffect dissipates.(3) Place a loop of thread on the surface of still water in such a way that all of the thread is incontact with the water. Note the shape of the loop. Now place a drop of detergent into themiddle of the loop. What happens to the shape of the loop? Why?(4) Sprinkle pepper onto the surface of water. Add a drop of detergent. What happens? Why?(5) Float two matches kparallel to each other and add a drop of detergent between them.What happens? Note: For each new experiment, the water needs to be replaced and the bowlwashed to free it of any residual detergent.Question: Calculate the gauge pressure inside a soapbubble 2.00 × 104 m in radius using the surfacetension for soapy water is (0.037 N/m). Convert thispressure to mm Hg.

Name: Select two questions as take-home investigation (Worked as homework a
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Description: Select two questions as take-home investigation (Worked as homework and pictured them.)(1) Try floating a sewing needle on water. In order for this activity to work, the needle needsto be very clean as even the oil from your fingers can be sufficien

For a bubble, gauge pressure is given by:- ∆P=4σR where, ∆P=Gauge Pressureσ=Surface…

Answered: Question: Calculate the gauge pressure…

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Question: Calculate the gauge pressure inside a soap bubble 2.00 × 104 m in radius using the surface tension for soapy water is (0.037 N/m). Convert this pressure to mm Hg.

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 65P

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