Explain elasticity using intermolecular force.

Q: Your client asks you to construct a mobile accent for his house. You use an iron wite, 0.75m long…

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Q: Explain why touching your toes while you are seated onthe floor with outstretched legs produces less…

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Q: What is the third kind of stress-strain situation?

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Q: Forces could also cause changes in an object such as its length, and volume, this change is known as…

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Q: Define the term Slope and Elastic Curve?

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

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Q: 4-The stress - strain relationship become nonlinear in the elastic region. True O False

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Q: Study how Earth acts like a gigantic gyroscope.

A: A gyroscope is a device used to measure or maintain orientation and angular velocity. The gyroscope…

Q: What are elastic constants?

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Q: Why are vertical columns not needed to support the middle of domed stadiums, such as the Houston…

A: Because tension along every part of the dome surface is parallel to the surface.

Q: What is meant by a rigid body?

A: In physics, a rigid body (also known as rigid object) is a solid body in which deformation is zero…

Q: Which is more elastic steel or rubber? Why?

A: By this definition, steel is more elastic than rubber because steel comes back to its original shape…

Q: where will you weigh more? at sea level or on a plane, over water or an ore deposit, or a salt…

A: At sea level, you will weight more than other mentioned places, because gravity is stronger at the…

Q: A 2 kg beam is loaded as shown in Figure 4. If the system is in equilibrium, calculate F, and F2. F2…

A: For equilibrium net force as well as net torque acting on the system must be zero.

Q: What factors would affect the elasticity of an object?

A: Required : Factors that affect elasticity.

Q: It can be defined simply as the stiffness of a solid material * Deformation O Plasticity O Hooke's…

A: Deformation occur in the body which is not stiff or which is able to move. So it defined the…

Q: Which (if any) of these objects is also in translational equilibrium?

A: Translational Equilibrium- An object is in translational equilibrium when the sum of all the…

Q: When the branch of a tree is shaken , fruit falls. Why?

A: Tree and the hanging fruit are in the state of rest initially. When the branch is shaken vigorously,…

Q: Explain the need for tall towers on a suspension bridge to ensure stable equilibrium.

A: An object is said to be stable equilibrium means, when the sum of all the forces acting on it should…

Q: Write down the conditions that must be satisfied for an object or structure to be in equilibrium?

A: The two key conditions for a rigid-body equilibrium are to be stated.

Q: what is linear elasticity?

A: Linear elasticity can be defined as a mathematical model that describes how solid objects undergo…

Q: Pat builds a track for his model car out of wood. The track is 14.00 cm wide, 3.00 m long, and 1.00…

A: Write a given values of this question. b=14cmL=3cmh=1m=100cm Equation of the parabola. y=x-329

Q: What is the role of elasticity in everyday life? Give two examples to illustrate.

A: The concept of elasticity is mainly used to make manmade structures.The ropes used in cranes to lift…

Q: There is a disk of cartilage between each pair of vertebrae in your spine. Suppose a disk is 0.50 cm…

A: Given: A thickness of disk = 0.50 cm A diameter of disk = 4.0 cm Disk support half the weight of a…

Q: the boom- cable set-up as shown in the figure, determine the tension in the cable and the force…

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Q: What does it mean when there is an opposing force to the elastic

A: Tension is a force associated with the pulling of an object such as a rope, cable, or chain. It is…

Q: Stress is analogous to:        a. strain       b. moment       c. pressure       d. fracture

A: Stress: - In physics, Stress is defined as the force per unit area applied externally on material…

Q: Differentiate between stress and strain.

A: Stress: - It is defined as the resistive force per unit area that rigid body exerts against an…

Q: Triceps muscle 3 Biceps muscle m=25 kg cm 16 cm 38 cm Calculate the force the biceps muscle must…

A: Given : r1 = 4 cm = 0.04 m r2 = 16 cm = 0.16 m r3 = 38 cm = 0.38 m ma = 2.5 kg mb = 4 kg

Q: When you bend a meterstick, one side is under tension and the other is under compression. Which side…

A: Bending of the stick is represented below.

Q: Differentiate between stress and strain? Give some examples of each?

A: Stress and strain are two very important factors for the study of strength of materials. With the…

Q: The radius ofa copper bar is 4 mm. What force is required to stretch the rod by 20% of its length,…

A: The Young’s modulus is given by,

Q: Explain why scissors for cutting cloth may have baldes longer than the handles, but shears for…

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Q: A rubber band 20 cm long has a cross-sectional area of 4 mm2 . What load will stretch the rubber…

A: The Young's modulus is given by Y =F LA l where, F is the load, l is the extension, A is the area, L…

Q: What is elastic modulus?

A: Elastic modulus

Q: The boom of the wall crane 4m long is held at right angles to the wall by a wire that is attached to…

A: Given that the boom of the wall crane 4m long is held at right angles to the wall by a wire that is…

Q: Each bone in the chain of bones forming your spine is separated from its neighbors by disks of…

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Q: Can a horizontal I-beam support a greater load when the web is horizontal or when the web is…

A: The web of an I-shaped beam is the part that connects the top and bottom flanges. When the web is…

Q: The breaking stress of aluminium is 7.5 x 107 Nm-2. Find the greatest length of aluminium wire that…

A: Given that:-   Breaking stress of aluminium wire=7.5×10^7 N/m^2

Q: A 150-kg crate is supported by two rods as shown in the figure. Each rod can support a normal stress…

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Debye Theory of Solids

In solid-state physics, debye theory is used to estimate the phonons contributing to the specific heat capacity in a solid. It explains that the specific heat is a consequence of the vibrations of the atomic lattice of the solid, which is in contrast to the Einstein model. In the Einstein model, solids are treated as independent, non-interacting quantum harmonic oscillators. This model clearly explains the low-temperature dependence of the heat capacity, which is proportional to T3. This is known as Debye T3 law.