A 12-mm square steel bearing plate lies between an 8-mm diameter wooden post and a concrete footing as shown in Fig. Determine the maximum value of the load P if the stress in wood is limited to 1800 kN/m2 and that in concrete to 650 kN/m2 .

Q: The elevator in a vertical mine shaft is supported by a steel cable of cross-sectional area 3.20 x…

A:

Q: In a structure you need to place a 7.5 m steel wire that does not stretch more than 6.7 cm when a…

A: Given,

Q: A shaft having length equal to 10 m and diameter equal to (50 + 21) mm is simply supported at both…

A:

Q: A 3800N load is hung on the end of an 18-m steel wire. What must be its diameter so that the stretch…

A:

Q: A nylon rope used by mountaineers elongates under the weight of a 65.0-kg climber. If the rope is…

A: Given , Weight of climber = 65.0 kg             length of rope = 45.0 m             Diameter = 8.00…

Q: "One end of a steel rod of radius R = 10mm and length L = 90 cm is held in a vise. A force of…

A: Youngs modulus=FL/AΔL

Q: 5.8 A reinforced concrete column is 12 feet long, and un- der load, it shortens inches". Determine…

A: Given data: Length of concrete column (L) = 12 feet Change in length (ΔL) = 1/8 inches Required: The…

Q: The following observation were made during a tensile test on a mild steel specimen of 40 mm diameter…

A: The solution is given below

Q: For safety in climbing, a mountaineer uses a nylon rope that is 50. m long and 1.0 cm in diameter.…

A:

Q: In regions of the cardiovascular system where there is steady laminar blood flow, the shear stress…

A:

Q: In a small elevator, a 500-kg load hanging from a steel cable 3.0 m long with a cross section of…

A:

Q: A 3800N load is hung on the end of an 18-m steel wire. What must be its diameter so that the stretch…

A: Given: The load is 3800 N. The length of the wire is 18 m. The elongation in the wire is 9 mm.…

Q: A vertical off-shore structure is built to withstand a maximum stress of 109 Pa. Is the structure…

A: Given : The maximum stress the structure can handle, P = 109 PaDepth of the sea, d = 3 km = 3 × 103…

Q: For safety in climbing, a mountaineer uses a nylon rope that is 65 m long and 1.4 cm in diameter.…

A: In the question given the length of rope , diameter of rope , mass and change in the length and we…

Q: If the shear stress exceeds about 4.00 x 108 N/m2, steel ruptures. Determine the shearing force…

A: Given data *The given shear stress is S = 4.00 × 108 N/m2 *The given bolt diameter is d = 1.00 cm =…

Q: A three-legged wooden bar stool made out of solid Douglas fir has legs that are 2.0 cm in diameter.…

A:

Q: In a structure you need to place a 1.7 m steel wire that does not stretch more than 3.7 cm when a…

A: Given that, Length steel wire = 1.7 m Stretched length = 3.7 cm Force = 417 N Young's modulus =…

Q: Assume a human leg contains a 50cm long bone with an average cross section of 3cm2. By how much (in…

A:

Q: Suppose a person’s femoral diaphysis is idealized as a circular cylinder with a periosteal diameter…

A:

Q: 1.4 Axial loads are applied to the compound rod that is composed of an aluminum segment rigidly…

A: P= 10 kN = 10 * 103 N AAl= 600 mm2 ABr= 400 mm2 ASteel= 300 mm2

Q: After a fall, a 73 kg rock climber finds himself dangling from the end of a rope that had been 17 m…

A: This problem requires following formula to be used. a)Strain is ratio of stretched length to…

Q: A wall climber of mass 85 kg dangles at the end of a rope. The rope has a diameter of 9.6 mm, and is…

A: mass= 85 Kg Length, L= 21 m radius, r= 4.8 mm ∆L= 3.2 cm

Q: In a structure you need to place a 7.8 m steel wire that does not stretch more than 8.5 cm when a…

A:

Q: The figure shows an approximate plot of stress versus strain for a spider-web thread, out to the…

A: We  have,  stress=forcearea and                strain=change in lengthoriginal lengthHence,  work…

Q: After a fall, a 86 kg rock climber finds himself dangling from the end of a rope that had been 16 m…

A:

Q: For safety in climbing, a mountaineer uses a nylon rope that is 50. m long and 1.0 cm in diameter.…

A: Young’s modulus is given by,

Q: Show transcribed image text For safety in climbing, a mountaineer uses a nylon rope that is 51m long…

A: Length, L = 51 m  elongation, l = 2.1 m mass, m = 110 kg diameter, d = 1.1 cm

Q: The perimeter forming rate of the 45 ° jet shown in the figure is calculated when the strain rates…

A:

Q: After a fall, a 80 kg rock climber finds himself dangling from the end of a rope that had been 14m…

A:

Q: A solid cylindrical bar, of 20 mm diameter and 180 mm long, is welded to a hollow tube of 20 mm…

A: Given data as per question Diameter of solid bar =20 mm Length of solid bar =180 mm Internal…

Q: After a fall, a 88 kg rock climber finds himself dangling from the end of a rope that had been 12 m…

A:

Q: The five-bolt connection must support an applied load of P = 3400 lb. If the average shear stress in…

A:

Q: A metallic cube whose each side is 10 cm is subjected to a shearing force of 100 kgf. The top face…

A:

Q: A plank 2.00 cm thick and 16.3 cm wide is firmly attached to the railing of a ship by clamps so that…

A:

Q: The five-bolt connection shown in the figure must support an applied load of P = 270 kN. If the…

A: Stress is defined as the force experienced by the object in unit area which causes change or…

Q: A steel guitar string with a diameter of 0.300 mm and a length of 70.0 cm is stretched by 0.500 mm…

A: Young's modulus= 2 × 1011 N/m2

Q: A cube made of an unknown material has a dimension of 6 cm on all edges. If the upper face is…

A: shear modulus is given by, G =FlA∆xwhere, F=force acting on the body =2×106 dynes = 20 Nl =initial…

Q: Calculate the force a piano tuner applies to stretch a steel piano wire 8.40 mm, if the wire is…

A: change in length (∆L) = 8.40 mm diameter of wire (d) = 0.800 mm Length (L) = 1.35 m Young's modulus…

Q: A lift of mass 2000 kg is supported by thick steel ropes. If maximum upward acceleration of the lift…

A:

Q: The pole in the figure is at a 90° bend in a power line and is therefore T. ubjected to more shear…

A: Young's modulus is the slope of the linear part of the stress-strain curve for a material under…

Q: Calculate the force a piano tuner applies to stretch a steel piano wire 7.50 mm, if the wire is…

A: Write a given values of this question. Original length of piano. L=1.35m Stretch length of piano.…

Q: The figure shows an approximate plot of stress versus strain for a spider-web thread, out to the…

A: Solution:-

Q: Masses M1 and M2 are supported by wires that have equal lengths when unstretched. The wire…

A: masses M1 and M2 Aluminium wire                                           steel wirediameter,d1=1.35…

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).