NO.56 32. In 1onic solids such as NaCI (salt), the potential energy of a pairblr" – alr, where r is the separationof the ions. For NaCl, a and b have the SI values 4.04×10-28 and8.22. Find the equilibriumCHof ions takes the form U-Exe .52X10", respectively, and nseparation in NaCl.53. Repeat Exercise 17 for the case when the coefficient of kineticfriction on both slopes is 0.11, while the level stretches remainSecti frictionless.54. As an energy-efficiency consultant, you’re asked to assess aENV pumped-storage facility. Its reservoir sits 160 m above its gen-erating station and holds 7.6 X 10° kg of water. The power plantgenerates 310 MW of electric power while draining the reser-voir over an 8.0-h period. Its efficiency is the percentage of thestored potential energy that gets converted to electricity. What* Defficiency do you report?55. A spring of constant kblock along a horizontal surface whose coefficient of sliding fric-tion is 0.29. If the spring is compressed 22 cm, how far does the290 N/m is used to launch a 1.9-kgblock slide?56. A bug slides back and forth in a bowl 12 cm deep, starting fromrest at the top, as shown in Fig. 7.20. The bowl is frictionlessexcept for a 1.8-cm-wide sticky patch on its flat bottom, wherethe coefficient of friction is 0.83. How many times does the bugcross the sticky region?doald ods loOCiated wiWashingtonfornia, 86 mmud ot Ho bualw nojalogAylleiino ns212 cmob ovuoYdt.no64Imslenos1.8 cmCHmo 0.0 o1 quFIGURE 7.20 Problem 56Sbaoqa noizill0s muimNNA6.

Given quantities: depth of the bowl (h) = 12 cm width of sticky patch (d) = 1.80 cm coefficient of…

56. A bug slides back and forth in a bowl 12 cm deep, starting from rest at the top, as shown in Fig. 7.20. The bowl is frictionless except for a 1.8-cm-wide sticky patch on its flat bottom, where the coefficient of friction is 0.83. How many times does the bug cross the sticky region? yainqa doald Washington California. 86 m 12 cm noiallog ob ovuoY Imslenoo song 1.8 cm FIGURE 7.20 Problem 56 Sbooga noizilloo mun

56. A bug slides back and forth in a bowl 12 cm deep, starting from rest at the top, as shown in Fig. 7.20. The bowl is frictionless except for a 1.8-cm-wide sticky patch on its flat bottom, where the coefficient of friction is 0.83. How many times does the bug cross the sticky region? yainqa doald Washington California. 86 m 12 cm noiallog ob ovuoY Imslenoo song 1.8 cm FIGURE 7.20 Problem 56 Sbooga noizilloo mun

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Scalars and Vectors

Scalars and Vectors are the classification of physical quantities that are used to denote various terms in physics.

Question

NO.56

32. In 1onic solids such as NaCI (salt), the potential energy of a pair
blr" – alr, where r is the separation
of the ions. For NaCl, a and b have the SI values 4.04×10-28 and
8.22. Find the equilibrium
CH
of ions takes the form U
-
Exe .52X10", respectively, and n
separation in NaCl.
53. Repeat Exercise 17 for the case when the coefficient of kinetic
friction on both slopes is 0.11, while the level stretches remain
Secti frictionless.
54. As an energy-efficiency consultant, you’re asked to assess a
ENV pumped-storage facility. Its reservoir sits 160 m above its gen-
erating station and holds 7.6 X 10° kg of water. The power plant
generates 310 MW of electric power while draining the reser-
voir over an 8.0-h period. Its efficiency is the percentage of the
stored potential energy that gets converted to electricity. What
* Defficiency do you report?
55. A spring of constant k
block along a horizontal surface whose coefficient of sliding fric-
tion is 0.29. If the spring is compressed 22 cm, how far does the
290 N/m is used to launch a 1.9-kg
block slide?
56. A bug slides back and forth in a bowl 12 cm deep, starting from
rest at the top, as shown in Fig. 7.20. The bowl is frictionless
except for a 1.8-cm-wide sticky patch on its flat bottom, where
the coefficient of friction is 0.83. How many times does the bug
cross the sticky region?
doald ods lo
OCiated wi
Washington
fornia, 86 m
mud ot Ho bual
w nojalogA
ylleiino ns212 cm
ob ovuoYdt.no
64
Imslenos
1.8 cm
CH
mo 0.0 o1 qu
FIGURE 7.20 Problem 56
Sbaoqa noizill0s muim
NNA
6.

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