Fundamentals of Physics
10th Edition
ISBN: 9781118230732
Author: David Halliday
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 12, Problem 49P
GO In Fig. 12-60, a 103kg uniform log hangs by two stool wires,A and B, both of radius 1.20 mm. Initially, wire A was 2.50 m long and 2.00 mm shorter than wire B. The log is now horizontal. What are the magnitudes of the forces on it from (a) wire A and (b) wire B? (c) What is the ratio dA/dB?
Figure 12-60 Problem 49.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A copper wire of length 3 m nas a
diameter 1 mm. If weight of 10 kg is attached to
one end of wire, what is the extension
produced ? Calculate lateral contraction if
Poisson's ratio is 0.25. (Y = 12.5 × 101º N/m²)
A farmer making grape juice fills a glass bottle to the brim and caps it tightly. The juice expands more than the glass when it warms up, in such a way that the volume increases by 0.6%
that is, ΔVV0 = 6 ✕ 10−3
relative to the space available. Calculate the magnitude (in N/m2) of the normal force per square meter exerted by the juice if its bulk modulus is 1.5 ✕ 109 N/m2, assuming the bottle does not break.
A copper wire of length 3 m has a diameter 1 mm. If weight of 10 kg is
attached to one end of wire, what is the extension produced? Calculate
lateral contraction if poisson's ratio is 0.25 (Y=12.5 x 10¹⁰ N/m²)
Chapter 12 Solutions
Fundamentals of Physics
Ch. 12 - Figure 12-15 shows three situations in which the...Ch. 12 - In Fig, 12-16, a rigid beam is attached to two...Ch. 12 - Figure 12-17 shows four overhead views of rotating...Ch. 12 - A ladder leans against a frictionless wall but is...Ch. 12 - Figure 12-18 shows a mobile of toy penguins...Ch. 12 - Figure 12-19 shows an overhead view of a uniform...Ch. 12 - In Fig. 12-20, a stationary 5 kg rod AC is held...Ch. 12 - Three piatas hang from the stationary assembly of...Ch. 12 - In Fig. 12-22, a vertical rend is hinged at its...Ch. 12 - Figure 12-23 shows a horizontal block that is...
Ch. 12 - The table gives the initial lengths of three reds...Ch. 12 - A physical therapist gone wild has constructed the...Ch. 12 - Prob. 1PCh. 12 - An automobile with a mass of 1360 kg has 3.05 m...Ch. 12 - SSM WWWIn Fig. 12-26, a uniform sphere of mass m =...Ch. 12 - An archers bow is drawn at its midpoint until the...Ch. 12 - ILWA rope of negligible mass is stretched...Ch. 12 - A scaffold of mass 60 kg and Length 5.0 m is...Ch. 12 - A 75 kg window cleaner uses a 10 kg ladder that is...Ch. 12 - A physics Brady Bunch, whose weights in newtons...Ch. 12 - SSMA meter stick balances horizontally on a...Ch. 12 - GO The system in Fig. 12-28 is in equilibrium,...Ch. 12 - SSMFigure 12-29 shows a diver of weight 580 N...Ch. 12 - In Fig. 12-30, trying to gel his car out of mud, a...Ch. 12 - Figure 12-31 shows the anatomical structures in...Ch. 12 - In Fig. 12-32, a horizontal scaffold, of length...Ch. 12 - ILWForces F1, F2 and F3 act on the structure of...Ch. 12 - A uniform cubical crate is 0.750 m on each side...Ch. 12 - In Fig. 12-34, a uniform beam of weight 500 N and...Ch. 12 - GO In Fig. 12-35, horizontal scaffold 2, with...Ch. 12 - To crack a certain nut in a nutcracker, forces...Ch. 12 - A bowler holds a bowling ball M = 7.2 kg in the...Ch. 12 - ILWThe system in Fig. 12-38 is in equilibrium. A...Ch. 12 - GO In Fig-12-39, a 55 kg rock climber is in a...Ch. 12 - GO In Fig. 12-40, one end of a uniform beam of...Ch. 12 - GO In Fig. 12-41, a climber with a weight of 533.8...Ch. 12 - SSM WWWIn Fig. 12-42, what magnitude of constant...Ch. 12 - GO In Fig. 12-43, a climber leans out against a...Ch. 12 - GO In Fig. 12-44, a 15 kg block is held in place...Ch. 12 - GO In Fig. 12-45, suppose the length L of the...Ch. 12 - A door has a height of 2.1 m along a y axis that...Ch. 12 - GO In Fig. 12-46, a 50.0 kg uniform square sign,...Ch. 12 - GO In Fig. 12-47, a nonuniform bar is suspended at...Ch. 12 - In Fig. 12-48, the driver of a car on a horizontal...Ch. 12 - Figure 12-49a shows a vertical uniform beam of...Ch. 12 - In Fig. 12-45, a thin horizontal bar AB of...Ch. 12 - SSM WWWA cubical box is filled with sand and...Ch. 12 - Figure 12-50 shows a 70 kg climber hanging by only...Ch. 12 - GO In Fig. 12-51, a uniform plank, with a length L...Ch. 12 - In Fig, 12-52, uniform beams A and B are attached...Ch. 12 - For the stepladder shown in Fig. 12-53, sides AC...Ch. 12 - Figure 12-54a shows a horizontal uniform beam of...Ch. 12 - A crate, in the form of a cube with edge lengths...Ch. 12 - In Fig. 12-7 and the associated sample problem,...Ch. 12 - SSM ILWA horizontal aluminum rod 4.8 cm in...Ch. 12 - Figure 12-55 shows the stressstrain curve for a...Ch. 12 - In Fig. 12-56, a lead brick rests horizontally on...Ch. 12 - Figure 12-57 shows an approximate plot of stress...Ch. 12 - A tunnel of length L = 150 m, height H = 7.2 m,...Ch. 12 - Figure 12-59 shows the stress versus strain plot...Ch. 12 - GO In Fig. 12-60, a 103kg uniform log hangs by two...Ch. 12 - GO Figure 12-61 represents an insect caught at the...Ch. 12 - GO Figure 12-62 is an overhead view of a rigid rod...Ch. 12 - After a fall, a 95 kg rock climber finds himself...Ch. 12 - SSMIn Fig 12-63, a rectangular slab of slate rests...Ch. 12 - A uniform ladder whose length is 5.0 m and whose...Ch. 12 - SSM In Fig. 12-64, block A mass 10 kg is in...Ch. 12 - Figure 12-65a shows a uniform ramp between two...Ch. 12 - GO In Fig. 12-66, a 10 kg sphere is supported on a...Ch. 12 - In Fig. 12-67a, a uniform 40.0 kg beam is centered...Ch. 12 - SSM In Fig. 12-68, an 817 kg construction bucket...Ch. 12 - In Fig. 12-69, a package of mass m hangs from a...Ch. 12 - ILWThe force F in Fig. 12-70 keeps the 6.40 kg...Ch. 12 - A mine elevator is supported by a single steel...Ch. 12 - Four bricks of length L, identical and uniform,...Ch. 12 - Prob. 64PCh. 12 - In Fig. 12-73, a uniform beam with a weight of 60...Ch. 12 - A uniform beam is 5.0 m long and has a mass of 53...Ch. 12 - A solid copper cube has an edge length of 85.5 cm....Ch. 12 - A construction worker attempts to lift a uniform...Ch. 12 - SSM In Fig. 12-76, a uniform rod of mass m is...Ch. 12 - A 73 kg man stands on a level bridge of length L....Ch. 12 - SSMA uniform cube of side length 8.0 cm rests cm a...Ch. 12 - The system in Fig. 12-77 is in equilibrium. The...Ch. 12 - SSMA uniform ladder is 10 m long and weighs 200 N....Ch. 12 - A pan balance is made up of a rigid, massless rod...Ch. 12 - The rigid square frame in Fig. 12-79 consists of...Ch. 12 - A gymnast with mass 46.0 stands on the end of a...Ch. 12 - Figure 12-81 shows a 300 kg cylinder that is...Ch. 12 - In Fig. 12-82, a uniform beam of length 12.0 m is...Ch. 12 - Four bricks of length L, identical and uniform,...Ch. 12 - A cylindrical aluminum rod, with an initial length...Ch. 12 - Prob. 81PCh. 12 - If the square beam in Fig. 12-6a and the...Ch. 12 - Figure 12-84 shows a stationary arrangement of two...Ch. 12 - A makeshift swing is constructed by makings loop...Ch. 12 - Figure 12-85a shows details of a finger in the...Ch. 12 - A trap door in a ceiling is 0.91 m square, has a...Ch. 12 - A particle is acted on by forces given, in...Ch. 12 - The leaning Tower of Pisa is 59.1 m high and 7.44...
Additional Science Textbook Solutions
Find more solutions based on key concepts
44. Vector has a magnitude of 20 m arc makes an angle of 30° above the positive x axis. Vector has a magnitud...
College Physics (10th Edition)
Show that equation (236) follows from the arbitrary four-vector Lorentz transformation equations (235).
Modern Physics
Earth scientists in different locations determine the same earthquake origin. Explain.
Conceptual Physics: The High School Physics Program
Fill in each blank with the most reasonable metric unit (km, m, cm, or mm).
19. The distance between New York a...
Applied Physics (11th Edition)
A pool is to be filled with 60m3 water from a garden hose of 2.5cm diameter flowing water at 2m/s . Find the ma...
Fundamentals Of Thermodynamics
The ramp used by person I in order to do least amount of work.
Glencoe Physics: Principles and Problems, Student Edition
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
- 9-90. The starter for an electric motor is a full cylinder and has the cross-sectional areas shown. If copper wiring has a density of Peu = 8.90 Mg/m³ and the steel frame has a density of Pst = 7.80 Mg/m³, estimate the total mass of the starter. Neglect the size of the copper wire. Problem 9-90 Steel Copper 80 mm 50 mm 30 mm 100 mm 60 mmarrow_forwardTwo wires of equal cross- section one made up of aluminium and other of brass are joined end to end. When the combination at wire is kept under tension the elongation in wires are found to be equal. Find the ratio of lengths of two wires. (Y, = 7 x 10º N/m² and %3D AL Y = 9.1 x 101º N/m²). %3Darrow_forwardlength. Two wires A and B are of the same Their diameters are in the ratio 1: 2 and the Young's modulii are in ratio 2:1. If they are pulled by the same force, then elongations will be in ratio (a) (c) 4:1 1:2 (b) (d) 1:4 2:1arrow_forward
- Q. 29 : A wire of length (L) and radius (r) is loaded with a weight (Mg). If (Y) and (o) denote the Young's modulus and Poisson's ratio of the material of the wire respectively, then the change in the radius of the wire is given by : Mgr (b) Ar = Otr (a) Ar = Mgr %3D TTo Y Mgo Ar = MgY (d) Ar = (c) Try Tcroarrow_forwardFour wire of the same material but having different lengths and radii subjected to same load. Which of the following combinations of length L and radiusr will have the highest elongation ? are (a) L = 200 cm, r= 2 mm (b) L = 3300 cm, r = 3 mm (c) L = 400 cm, r= 4 mm (d) = 100 cm, r=1 mm %3Darrow_forwardFigure 15-47 53 SSM ILW In the overhead view of Fig. 15- 48, a long uniform rod of mass 0.600 kg is free to Problem 52. rotate in a horizontal plane about a vertical axis through its center. A spring with force constant k = 1850 N/m is connected horizontally be- k Wall tween one end of the rod and a Rotation axis fixed wall. When the rod is in equi- librium, it is parallel to the wall. What is the period of the small os- cillations that result when the rod is rotated slightly and released? Figure 15-48 Problem 53.arrow_forward
- Member BC has a square cross section. The diameter of the pins at A and B are 3 cm and 2 cm respectively. If the allowable normal stress for member BC is allow = 25 MPa and the allowable shear stress for the pins iS Tallow = 12 MPa, calculate the maximum force intensity w (in N/m). 4 cm В 50° 3 m A Warrow_forwardQ.29: A wire of length (L) and radius (r) is loaded with a weight (Mg). If (Y) and (o) denote the Young's modulus and Poisson's ratio of the material of the wire respectively, then the change in the radius of the wire is given by : (CET-2009) (a) (c) Ar = Ar = σπι Mgr Mgo nry (b) Ar: (d) Ar= Mgr πσY MgY πίσarrow_forwardA 8-mm-thick rectangular alloy bar is subjected to a tensile load P by pins at A and B, as shown in the figure. The width of the bar is w = 35 mm. Strain gages bonded to the specimen measure the following strains in the longitudinal (x) and transverse (y) directions: & = 740 με and ε,- -270 με. (a) Determine Poisson's ratio for this specimen. (b) If the measured strains were produced by an axial load of P = 16 kN, what is the modulus of elasticity for this specimen? P B Answers: (a) v= i (b) Е- i GPaarrow_forward
- A homogeneous bar, of mass m = 100kg, is suspended from three symmetrically located vertical wires of the same length. Determine the tension of the wires, if the middle wire is steel and the other two are copper. The cross-sectional area of all the wires is equal. The Young's modulus of steel is twice that of copper.arrow_forwardEx 79 : A bar of length 200 cm is supported at its two ends. The breadth and depth of bar are 10 cm and 2 cm respectively. A mass of 150 gm suspended at the centre of bar. Compute the depression produced in the bar. (Y = 4 × 1010 %3D N/m²)arrow_forwardV A solid brass (bulk modulus 6.7 x 1010 N/m²) sphere is subjected to a pressure of 1.0 x 105 Pa due to the earth's atmosphere. On Venus the pressure due to the atmosphere is 9.0 x 106 Pa. By what fraction Ar/ro (including the algebraic sign) does the radius of the sphere change when it is exposed to the Venusian atmosphere? Assume that the change in radius is very small relative to the initial radius. Number i Unitsarrow_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 Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Static Equilibrium: concept; Author: Jennifer Cash;https://www.youtube.com/watch?v=0BIgFKVnlBU;License: Standard YouTube License, CC-BY