Student Workbook for College Physics: A Strategic Approach
4th Edition
ISBN: 9780134609898
Author: Knight (Professor Emeritus), Randall D.; Jones, Brian; Field, Stuart
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 8, Problem 27MCQ
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
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
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
A measure of the resistance of a material to change of volume without change of shape or form. a.Modulus of rigidity b. Shear modulus c.Young's modulus d.Bulk modulus
What is the probable explanation for observed phenomena which is supported by abundant data?a.Conclusion b.Hypothesis c.Theory d.Axion
If an object is stationary or moving at a constant velocity, then ?a.No forces are acting on the object. b.The forces acting the object are balanced. c.The object is in equilibrium state. d.Either of the above
Which of the following statements is correct?a.The coefficient of kinetic friction is typically greater than the coefficient of static friction. b.The coefficient of static friction is always less than c.The coefficient of static and kinetic friction are always equal. d.The coefficient of static friction is typically greater than the coefficient of kinetic friction.
It states that the elongation is proportional to the force.a.Young's theorem b.Pascal's law c.Farrell's law…
A rigid, uniform, horizontal bar of mass m1 and length L is supported by two identical massless strings. (Figure 1)Both strings are vertical. String A is attached at a distance d<L/2 from the left end of the bar and is connected to the ceiling; string B is attached to the left end of the bar and is connected to the floor. A small block of mass m2 is supported against gravity by the bar at a distance x from the left end of the bar, as shown in the figure.
Throughout this problem positive torque is that which spins an object counterclockwise. Use g for the magnitude of the free-fall acceleration gravity.
Find TA, the tension in string A.
Express the tension in string A in terms of g, m1, L, d, m2, and x.
Find TB, the magnitude of the tension in string B.
Express the magnitude of the tension in string B in terms of TA, m1, m2, and g.
If the mass of the block is too large and the block is too close to the left end of the bar (near string B) then the horizontal bar may become…
Chapter 8 Solutions
Student Workbook for College Physics: A Strategic Approach
Ch. 8 - Prob. 1CQCh. 8 - Could a ladder on a level floor lean against a...Ch. 8 - Prob. 3CQCh. 8 - Prob. 4CQCh. 8 - Prob. 5CQCh. 8 - Prob. 6CQCh. 8 - Prob. 7CQCh. 8 - A spring exerts a 10 N force after being stretched...Ch. 8 - Prob. 9CQCh. 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 - Prob. 13CQCh. 8 - Prob. 14CQCh. 8 - Steel nails are rigid and unbending. Steel wool is...Ch. 8 - Two children hold opposite ends of a lightweight,...Ch. 8 - Prob. 19MCQCh. 8 - Prob. 20MCQCh. 8 - Prob. 21MCQCh. 8 - Prob. 22MCQCh. 8 - Prob. 23MCQCh. 8 - Prob. 24MCQCh. 8 - Prob. 25MCQCh. 8 - Prob. 26MCQCh. 8 - You have a heavy piece of equipment hanging from a...Ch. 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 - Prob. 7PCh. 8 - Prob. 9PCh. 8 - Prob. 11PCh. 8 - Prob. 13PCh. 8 - Prob. 14PCh. 8 - Prob. 15PCh. 8 - The stability of a vehicle is often rated by the...Ch. 8 - Prob. 18PCh. 8 - A car manufacturer claims that you can drive its...Ch. 8 - Prob. 20PCh. 8 - An orthodontic spring, connected between the upper...Ch. 8 - Prob. 22PCh. 8 - Experiments using optical tweezers measure the...Ch. 8 - Prob. 24PCh. 8 - One end of a 10-cm-long spring is attached to the...Ch. 8 - Prob. 26PCh. 8 - A spring has an unstretched length of 10 cm. It...Ch. 8 - A spring stretches 5.0 cm when a 0.20 kg block is...Ch. 8 - You need to make a spring scale to measure the...Ch. 8 - Prob. 30PCh. 8 - A force stretches a wire by 1.0 mm. a. A second...Ch. 8 - Prob. 32PCh. 8 - What hanging mass will stretch a 2.0-m-long,...Ch. 8 - An 80-cm-long, 1.0-mm-diameter steel guitar string...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. 38PCh. 8 - Prob. 39PCh. 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. 44PCh. 8 - Prob. 47PCh. 8 - Prob. 48PCh. 8 - Prob. 49PCh. 8 - Prob. 51GPCh. 8 - Prob. 52GPCh. 8 - Prob. 53GPCh. 8 - Prob. 55GPCh. 8 - Two identical, side-by-side springs with spring...Ch. 8 - Prob. 57GPCh. 8 - Prob. 58GPCh. 8 - Prob. 59GPCh. 8 - A 25 kg child bounces on a pogo stick. The pogo...Ch. 8 - Prob. 61GPCh. 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 - Orb spiders make silk with a typical diameter of...Ch. 8 - Larger animals have sturdier bones than smaller...Ch. 8 - Prob. 67GPCh. 8 - Prob. 68GPCh. 8 - Prob. 69MSPPCh. 8 - Prob. 70MSPPCh. 8 - Prob. 71MSPPCh. 8 - Prob. 72MSPP
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=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_forwardA spring has a length of 0.200 m when a 0.300kg mass hangs from it, and a length of 0.750 m when a 1.95-kg mass hangs from it. (a) What is the force constant of the spring? (b) What is The unloaded length of the spring?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_forward
- In the short story The Pit and the Pendulum by 19th-century American horror writer Edgar Allen Poe, a man is tied to a table directly below a swinging pendulum that is slowly lowered toward him. The bob of the pendulum is a 1-ft steel scythe connected to a 30-ft brass rod. When the man first sees the pendulum, the pivot is roughly 1 ft above the scythe so that a 29-ft length of the brass rod oscillates above the pivot (Fig. P16.39A). The man escapes when the pivot is near the end of the brass rod (Fig. P16.39B). a. Model the pendulum as a particle of mass ms 5 2 kg attached to a rod of mass mr 5 160 kg. Find the pendulums center of mass and rotational inertia around an axis through its center of mass. (Check your answers by finding the center of mass and rotational inertia of just the brass rod.) b. What is the initial period of the pendulum? c. The man saves himself by smearing food on his ropes so that rats chew through them. He does so when he has no more than 12 cycles before the pendulum will make contact with him. How much time does it take the rats to chew through the ropes? FIGURE P16.39arrow_forwardA uniform rope of cross-sectional area 0.50cm2 breaks when the tensile stress in it reaches 6.00106N/m2 . (a) What is the maximum load that can be lifted slowly at a constant speed by the rope? (b)What is the maximum load that can be lifted by the rope with an acceleration of 4.00m/s2 ?arrow_forwardReview. A wire of length L, Youngs modulus Y, and cross-sectional area A is stretched elastically by an amount L. By Hookes law, the restoring force is kL. (a) Show that k = YA/L. (b) Show that the work done in stretching the wire by an amount L is W=12YA(L)2/L.arrow_forward
- Your brother is opening a skateboard shop. He has created a sign for his shop made from a uniform material and in the shape shown in Figure P12.5. The shape of the sign represents one of the hills in the skateboard park he plans on building on land adjacent to the shop. The curve on the top of the sign is described by the function y = (x 3)2/9. When the sign arrives in his shop, your brother wants to hang it from a single wire outside the shop. But he doesnt know where on the sign to attach the wire so that the bottom edge of the sign will hang in a horizontal orientation. He asks for your help. Figure P12.5arrow_forward(a) The "lead" in pencils is a graphite composition with a Young's modulus of about 1109 N/ m2. Calculate the change in length of the lead in an automatic pencil if you tap it straight into the pencil with a force of 4.0 N. The lead is 0.50 mm in diameter and 60 mm long. (b) Is the answer reasonable? That is, does it seem to be consistent with what you have observed when using pencils?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_forward
- You are looking at a small, leafy tree. You do not notice any breeze, and most of the leaves on the tree are motionless. One leaf however, is fluttering hack and forth wildly. After a while, that leaf stops moving and you notice a different leaf moving much more than all the others. Explain what could cause the large motion of one particular leaf.arrow_forwardPlease answer fast A 10 000-N shark is supported by a cable attached to a 4.00-m rod that can pivot at the base. Calculate (a) the tension in the tie-rope between the rod and the wall if it is holding the system in the position shown in Figure P12.49. Find the (b) horizontal and (c) vertical forces exerted on the base of the rod. (Neglect the weight of the rod.)arrow_forwardA 10 000- N Shark is supported by a rope attached to a 4.00-m rod that can pivot at the base (a) Calculate the tension in the cable between the rod and the wall, assuming the cable is holding the system in the position shown in Figure P12.33 Find (b) The horizontal force and (c) The vertical force exerted on the base of the rod. Ignore the weight of the rodarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
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