EBK COLLEGE PHYSICS
3rd Edition
ISBN: 9780321989246
Author: Knight
Publisher: PEARSON CO
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 8, Problem 23MCQ
You have a heavy piece of equipment hanging from a 1.0-mm-diameter wire. Your supervisor asks that the length of the wire be doubled without changing how far the wire stretches. What diameter must the new wire have?
A. 1.0 mm
B. 1.4 mm
C. 2.0 mm
D. 4.0 mm
Expert Solution & Answer
![Check Mark](/static/check-mark.png)
Want to see the full answer?
Check out a sample textbook solution![Blurred answer](/static/blurred-answer.jpg)
Students have asked these similar questions
A 4 mm diameter of metal
wire with a length of 4 m is
applied by a certain load due
to this the wire is elongated to
6 mm. what will be the
change in diameter due to the
elongation. The Poisson's ratio
is 0.3.
O a. 0.5*10-6 m
O b. 1.4*10-6 m
O c. 1.8*10-6 m
O d. 2.2*10-6 m
9. Consider a wire with two sections of different diameters.
a) Is I1 less than, greater than, or equal to I2?
• A. I 2
• C. I1 = 12
b) Is J1 less than, greater than, or equal to J2?
• A. Jj J2
• C. Jį = J2
c) Is Ej less than, greater than, or equal to E2?
. А. Ej Е2
• C. Ej = E2
d) Is va,1 less than, greater than, or equal to va,2?
. А. Va,1 Vd,2
• C. vd,1 = Vd,2
pick an equation from this list to answer a.
E=F/q
V=W/q=Ue/q
V=Ed
C=q/V
V=IR
P=IV
E=Pt
Req=Ra+Rb+Rc…….
1/Req=1/Ra+1/Rb+1/Rc……..
µ=micro=x10-6
n=nano=x10-9
k=9.0x109 (N•m2)/C2
e=1.60x10-19C
g=9.80m/s2
Chapter 8 Solutions
EBK COLLEGE PHYSICS
Ch. 8 - An object is acted upon by two (and only two)...Ch. 8 - Prob. 2CQCh. 8 - Could a ladder on a level floor lean against a...Ch. 8 - If you are using a rope to raise a tall mast,...Ch. 8 - Prob. 5CQCh. 8 - Prob. 6CQCh. 8 - Prob. 7CQCh. 8 - A spring exerts a 10 N force after being stretched...Ch. 8 - The left end of a spring is attached to a wall....Ch. 8 - A spring is attached to the floor and pulled...
Ch. 8 - A typical mattress has a network of springs that...Ch. 8 - Take a spring and cut it in half to make two...Ch. 8 - A wire is stretched right to its breaking point by...Ch. 8 - Steel nails are rigid and unbending. Steel wool is...Ch. 8 - The rod in Figure Q8.15 pivots around an axle at...Ch. 8 - Two children hold opposite ends of a lightweight,...Ch. 8 - Prob. 17MCQCh. 8 - Prob. 18MCQCh. 8 - Prob. 19MCQCh. 8 - Prob. 20MCQCh. 8 - Prob. 21MCQCh. 8 - Prob. 22MCQCh. 8 - You have a heavy piece of equipment hanging from a...Ch. 8 - Prob. 24MCQCh. 8 - Prob. 1PCh. 8 - Prob. 2PCh. 8 - Prob. 3PCh. 8 - Prob. 4PCh. 8 - Youre carrying a 3.6-m-long, 25 kg pole to a...Ch. 8 - Prob. 6PCh. 8 - How much torque must the pin exert to keep the rod...Ch. 8 - Prob. 8PCh. 8 - Prob. 9PCh. 8 - Consider the procedure for measuring a womans...Ch. 8 - Prob. 11PCh. 8 - Prob. 12PCh. 8 - Prob. 13PCh. 8 - Prob. 14PCh. 8 - Prob. 15PCh. 8 - Prob. 16PCh. 8 - Prob. 17PCh. 8 - The stability of a vehicle is often rated by the...Ch. 8 - You want to slowly push a stiff board across a 20...Ch. 8 - Prob. 20PCh. 8 - A car manufacturer claims that you can drive its...Ch. 8 - Prob. 22PCh. 8 - One end of a spring is attached to a wall. A 25 N...Ch. 8 - An orthodontic spring, connected between the upper...Ch. 8 - Experiments using optical tweezers measure the...Ch. 8 - A spring has an unstretched length of 10 cm. It...Ch. 8 - One end of a 10-cm-long spring is attached to the...Ch. 8 - A spring stretches 5.0 cm when a 0.20 kg block is...Ch. 8 - A 1.2 kg block is hung from a vertical spring,...Ch. 8 - You need to make a spring scale to measure the...Ch. 8 - A force stretches a wire by 1.0 mm. a. A second...Ch. 8 - What hanging mass will stretch a 2.0-m-long,...Ch. 8 - How much force does it take to stretch a...Ch. 8 - An 80-cm-long, 1.0-mm-diameter steel guitar string...Ch. 8 - A student is testing a 1.0 m length of...Ch. 8 - A 1.2-m-long steel rod with a diameter of 0.50 cm...Ch. 8 - A mineshaft has an ore elevator hung from a single...Ch. 8 - The normal force of the ground on the foot can...Ch. 8 - A three-legged wooden bar stool made out of solid...Ch. 8 - Prob. 40PCh. 8 - A glass optical fiber in a communications system...Ch. 8 - The Achilles tendon connects the muscles in your...Ch. 8 - Prob. 43GPCh. 8 - Prob. 44GPCh. 8 - Using the information in Figure 8.2, calculate the...Ch. 8 - A woman weighing 580 N does a pushup from her...Ch. 8 - Prob. 47GPCh. 8 - Prob. 48GPCh. 8 - Prob. 49GPCh. 8 - The wheel of mass m in Figure P8.50 is pulled on...Ch. 8 - A 5.0 kg mass hanging from a spring scale is...Ch. 8 - Two identical, side-by-side springs with spring...Ch. 8 - Two springs have the same equilibrium length but...Ch. 8 - Figure P8.54 shows two springs attached to a block...Ch. 8 - A 60 kg student is standing atop a spring in an...Ch. 8 - A 25 kg child bounces on a pogo stick. The pogo...Ch. 8 - Figure P8.57 shows a lightweight plank supported...Ch. 8 - In the hammer throw, an athlete spins a heavy mass...Ch. 8 - There is a disk of cartilage between each pair of...Ch. 8 - In Example 8.1, the tension in the biceps tendon...Ch. 8 - Larger animals have sturdier bones than smaller...Ch. 8 - Orb spiders make silk with a typical diameter of...Ch. 8 - Prob. 63MSPPCh. 8 - Prob. 64MSPPCh. 8 - Prob. 65MSPP
Additional Science Textbook Solutions
Find more solutions based on key concepts
Four lawn sprinkler heads are fed by a 1.9-cm-diameter pipe. The water comes out of the heads at an angle of 35...
Physics for Scientists and Engineers with Modern Physics
* Make a rough graph of linear magnification versus object distance for a convex lens of 20-cm focal length as ...
College Physics
66. Astronauts use a centrifuge to simulate the acceleration of a rocket launch. The centrifuge takes 30 s to...
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
37. Knowing that a 1-kg object weighs 10 N. confirm that the acceleration of a 1-kg stone in free fall is 10 m/...
Conceptual Physical Science (6th Edition)
The pV-diagram of the Carnot cycle.
Sears And Zemansky's University Physics With Modern Physics
The diagrams at right show two identical gliders that move to the right without friction. The hands exert ident...
Tutorials in Introductory Physics
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A student taking a quiz finds on a reference sheet the two equations f=1Tandv=T She has forgotten what T represents in each equation. (a) Use dimensional analysis to determine the units required for T in each equation. (b) Explain how you can identify the physical quantity each T represents from the units.arrow_forwardA student taking a quiz finds on a reference sheet the two equations f=1Tandv=T She has forgotten what T represents in each equation. (a) Use dimensional analysis to determine the units required for T in each equation. (b) Explain how you can identify the physical quantity each T represents from the units.arrow_forwardA student taking a quiz finds on a reference sheet the two equations f=lTandv=T She has forgotten what represents in each equation. (a) Use dimensional analysis to determine the units required for T in each equation. (b) Explain how you can identify the physical quantity each T represents from the units.arrow_forward
- A wire of variable cross-section is given below. The relation between the drift speeds on the two cross-sections 1 and 2 is 3a Select one: a. 3V42=Vd1 b. 3V42=2Vd1 c. 9V42=Vd1 d. Va2=Vd1 e. Va2=2Vd1 е.arrow_forwardQ1/ A simple pendulum with an oscillation of 22/7s are long? Q2/ in an experiment measuring the internal resistance of a voltmeter you have the following readings Calculate the magnitude of each 1- The electromotive force of the continuous source E 2- The value of the internal resistance of the voltmeter Rv R(0) V(v) 1000 2.25 2000 1.8 3000 1.5 4000 1.28 5000 1.12 6000 1 7000 0.9 8000 0.81 9000 0.75arrow_forwardMy professor gave me 5 multiple choice answers for this problem. Does any of these fit the answer that you provided? a. v = 1.4 v0 b. v = v0 c. v = 0.87 v0 d. v = 0.71 v0 e. v = 0.50 v0arrow_forward
- Chris and her friends were playing outside when she tripped and fell and got a large piece of metal stuck in her arm. Her friends called for an ambulance and when the EMT's arrive they should do all of the following except: O a Stabilize the object with bulky dressings to reduce motion Control the bleeding by applying pressure on the dressing surrounding the object Leave object in place and do not shorten the object Remove the object immediately to make Chris more comfortable 00 0 0arrow_forward30 kg Fig. P12.11 and P12.12arrow_forwardA stone is dropped from a height of 7m above the ground. The velocity of the ball when reaching the ground is O a. 11.71 m/s O b. -9.8 m/s O C. 8.28 m/s O d. -11.71 m/s Silicon and germanium are examples of, O a. insulators O b. good conductors O c. semiconductors O d. superconductors e to searcharrow_forward
- 21. If X = î - 3 ĵ and Y = 4 î + 4 ĵ, what is X × Ỹ? A. zero C. 16 k B. -8 k D. 4 î - 12 ĵarrow_forwardA carbon nanotube is a nanometer-scale cylindrical tube composed of carbon atoms. One of its interesting properties is a very large Youngs modulus, measured to be more than 1.000 1012 N/m2. A tensile stress of 5.3 1010 N/m2 is exerted on a particular nanotube with a Youngs modulus measured at 2.130 1012 N/m2. Assuming the nanotube obeys Hookes law, by what percentage does the atomic spacing increase?arrow_forwardWhat does the term fibrillation mean in connection with heart function? Give two important causes of heart fibrillation in human beings. How do pacemakers and defibrillators help to prolong life for patients suffering from this condition?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningCollege PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
- Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781133939146/9781133939146_smallCoverImage.gif)
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781285737027/9781285737027_smallCoverImage.gif)
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781337515863/9781337515863_smallCoverImage.jpg)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305116399/9781305116399_smallCoverImage.gif)
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305952300/9781305952300_smallCoverImage.gif)
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
SIMPLE HARMONIC MOTION (Physics Animation); Author: EarthPen;https://www.youtube.com/watch?v=XjkUcJkGd3Y;License: Standard YouTube License, CC-BY