1.)When two wires of identical dimensions are used to hang 25 kg weights, wire A is observed to stretch twice as much as wire B. From this observation, you can make the following conclusions about the Young’s moduli of these wires: a.) YA = 4YB     b.) YA = 2YB c.) YA = YB d.) YA = YB

Q: A diamond rod and a tungsten rod have the same length and diameter and are subjected to the same…

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Q: A circular rod of cross-sectional area 2 x 104m² has a tensile force of 80 kN app The stress in the…

A:

Q: Orb spiders make silk with a typical radius of of 75 micrometers. Young’s modulus of spider silk:…

A: Given Data:Radius of silk Young's modulus of silk Tensile strength of silk Mass of the spider…

Q: Bulk modulus is defined as -P / (ΔV/V). Therefore it can be negative. True or False? a) True b)…

A: The Answer is False.

Q: Assume that Young's modulus for bone is 1.5x10 ^ 10 N / m2 and that a bone will fracture if more…

A: Given : Young's modulus (Y) = 1.5 x 1010 N/m2 Stress (σ) = 1.5 x 108 N/m2 Diameter (d) = 2.50 cm =…

Q: Two wires have lengths in the ratio 4 : 3 diameters in the ratio 2 : 1. Calculate elongations…

A: To find-Ratio of elongations x1 : x2Given data-Y1 : Y2=1 : 2,L1 : L2=4 : 3d1 : d2=2 : 1

Q: A femur bone of length 30 cm and diameter 2.5 cm is subjected to a compressive tress of 1.5 *10…

A: Given: Stress σ=1.5×108N/m2Young's modulus (Y)=1.5×1010N/mLength L=30cmDiameter d=2.5cm

Q: empt in Progress When subjected to a force of compression, the length of a bone (compression Young's…

A: Given  Compression young modulus ,Yc = 9.4×109 N/m2  Tensile young modulus, Yt =1.6×1010 N/m2…

Q: 5. Two steel wires P and Q have lengths 1 and 21 respectively, and cross-sectional areas A and A/2…

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Q: Calculate the strain of a brass rod of length 250 mm which is subjected to a tensile load of 50 kN…

A: Length , L = 250 mm Elongation , ∆L = 0.2 mm Load , F = 50 kN To find = Strain

Q: 10) A femur bone of length 30 cm and diameter 2.5 cm is subjected to a compressive tress of 1.5 *10…

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Q: Humans can bite with a force of approximately 810 N. If a human tooth has the Young's modulus of…

A: SOlution: as given F = 810 N E = youngs modulus of bone= A = 1.5 cm2 = 1.5x10-4 m2 L = 1.5 cm =…

Q: A particular human hair has a Young's modulus of 3.65×109 N/m2 and a diameter of 155 μm. If a 259 g…

A: (a)Write the expression for young’s modulus of the material.

Q: SF-1 A coil spring has an unloaded total length of 25.0cm. The spring constant is 1.20N/cm. The left…

A:

Q: WRK-1: The average cross-sectional area of leg 3 cm² and all of body weight 700 orted of this leg,…

A: Cross-sectional area of leg is Weight of body or the force is The change in length of leg is Young's…

Q: A large 75-kg lighting fixture can be hung from wires of identical size and shape made of aluminum,…

A: The change in the length of the wires can be given as, ΔL=PLAE From the above relation, it is…

Q: beyond the maximu Fter some time?

A: Given: What happens when the stress applied to the body is increased beyond the maximum value and is…

Q: Question 7. The following true stress-strain curve for a carbon nanofiber/epoxy with CaCO3…

A: Formula be used  σ=kεnσ is a true stressε is a true straink and n are constant From the graph we get…

Q: A copper wire and a steel wire having the same cross-section area are fastened end to end stretched…

A: Given: The ratio of the length of copper and steel is lcls=21. The ratio of the modulus of…

Q: 14) An object put on a table with four legs. Both the table and the object together have the same…

A: Since we only answer up to 1 question, we’ll answer the first question. Please resubmit the…

Q: A large 75-kg lighting fixture can be hung from wires of identical size and shape made of aluminum,…

A: The mass is 75 kg.The Young's modulus of aluminum is 0.70x1011 Pa.The Young's modulus of brass is…

Q: The dimensions of the Tensile Stress is Select one: O a. MLT-1 O b. ML2T-2 O c. MLT-2 O d. ML-1T-2 O…

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Q: The modulus of rigidity and Poisson’s ratio of the wire are 2.87 × 1010 N/m2 and 0.379 respectively.…

A: B

Q: A HOMEWRK-1: The average cross-sectional area of leg 3 cm² and all of body weight 700 N supported of…

A: We know that young modulus is given by Y=stress÷strain Y=(W/A)÷(∆L/L)=(WL)÷(A∆L) Where W=…

Q: Consider a steel rod with radius r and length L subjected to a constant tensile force T. If instead…

A: W consider a steel rod with radius r and length L subjected to a constant tensile force T. Then the…

Q: The dimensions of the Tensile Strain is Select one: a. MLT-1 b. ML-1T-2 c. Dimensionless d. ML2T-2…

A: The strain is the ratio of the change in dimensions to the original dimension.

Q: Two wires are made out of the same metal, but one wire is twice as long as the other wire. Which…

A: Since elasticity is the material property thus elastic modulus depends upon the nature of material…

Q: A marble column with a cross-sectional area of 25.2 cm2 supports a load of 7.0 × 104 N. The marble…

A:

Q: 2. The "lead" in pencils is a graphite composition with a Young's modulus of approximately 1.0 x 109…

A: Given, Young's modulus 'E' = 1 x 109 N/m2  Force applied 'F' = 4 N  diameter 'd' = 0.5 mm = 0.5 x…

Q: Orb Spiders make silk with a typical diameter of 0.15mm. 1)A typical orb spider has a mass of 0.50…

A: Given:- Orb Spiders make silk with a typical Diameter d= 0.15 mm= 0.15 x 10-3 m    Find:- 1)A…

Q: Describe the stress involved when stretching out a rubber band by pulling its ends apart

A: This question can be solved by using the basic concepts of stress and strain and properties of…

Q: In a garage a 1800 kg truck is lifted and held in place using a solid steel jack with a radius of…

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Q: 1. Two wires are made of the same material, their Young's Modulus constant is 10 x10^10 Pa. Wire X…

A: Young's modulus of a material is defined as the ratio of the longitudinal stress to the longitudinal…

Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).