Chemistry

Chemistry, 17.11.2019 23:31, yoogirlchloee

In your own words, explain shear adhesion.

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Chemistry, 24.08.2019 15:10, sistersaray

If you held a syrup bottle upside down, it would take a long time for it to come all the way up. explain why by using the words, viscosity, adhesion, and cohesion.

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Physics, 18.09.2019 03:30, QUEEN2267

3. this problem deals with the shear stress-shear rate data below from a 6 wt% sodium cellulose sulfate polymer solution in water at 24.5°c: (a) make a plot of viscosity vs. shear rate. label all axes, including units. (b) identify a shear rate range, if any, over which the fluid displays newtonian behavior. (c) identify a shear rate range, if any, over which the fluid displays power law behavior. if so, determine the power law constants (k and n). (d) if this polymer solution is to be used in a process at a shear rate of 5,000 s–1 , estimate its viscosity under these conditions. do you think the estimated value is reliable? briefly explain why or why not.

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Engineering, 20.09.2019 20:20, Bloom247

The following shear stress-shear rate data were obtained on a 6 wt% solution of sodium cellulose sulfate polymer in water at 24.5 °c. shear rate (s) 0.23 shear stress (pa) shear rate (s) shear stress (pa) 5.5 5.8 52 0.29 7 7.2 57 0.36 8.5 9.1 63 0.46 11.5 11 69 0.58 13 14.5 74 0.72 15 18 80 0.91 17.5 23 85 15 20.5 29 92 1.45 24 36 100 108 1.8 27.5 46 2.3 31.5 58 113 20 2.9 36 72 3.6 41 91 130 4.6 46 log-log scale plot the viscosity-shear rate function on a a. b. is there a shear rate range in which the fluid appears to be newtonian? is there a range in which the viscosity follows a power law relation? if so determine the power law constants and state what type of non-newtonian fluid it is the polymer solution is to be used in a process at a shear rate of 5000 s. estimate the viscosity under these conditions from the available data. do you think that the estimated c. d. value is reliable?

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Physics, 30.10.2019 19:31, harleyandpope90

See right as a square-shaped closed cross-section of a thin-walled beam. shear loads of the same magnitude are applied both in the x and y directions (sx=sy=s0) at the shear center. a) solve for the shear flows along the walls. b) provide a sketch of the shear flows along the walls, in the similar manner as in the slide 35 of ln4.

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In your own words, explain shear adhesion....

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