The rotor of a gas turbine is rotating at a speed of 6000 rpm when the turbine is shut down. It is observed that 4 minutes time is required for the rotor to coast to rest. Assuming uniformly accelerated motion, determine (a) the angular acceleration, and (b)number of revolutions that the rotor executes before coming to rest. (no figure is needed for this problem).

Q: Material that exhibit little or no yielding before failure are referred to as Brittle Materials O…

A: Material that exhibit little or no yielding before failure are referred as 1.Brittle Materials 2.…

Q: What is the difference between a solid and a hollow shaft in mechanical engineering?

A: This question is based on the concept of shaft in Mechanical Engineering

Q: You find that the ultimate stress of an object is 15%. What does that mean qualitatively?

A: Given : Ultimate stress is 15% To find: What it means qualitatively

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A: Yes, in engineering, the deformation of the body can be specified using normal and shear strain.…

Q: What are the units and equations for shear stress and shear strain

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A: Resilience is the energy absorbed by the member within elastic region. Or it can be defined as the…

Q: The cylinder has an inner diameter of 4 in. and a wall thickness of 0.1 in. If it is subjected to an…

A:

Q: How is Determining the tensile strength of material relevant in mechanical engineering applications?

A: A tensile strength of any material is the maximum load that a specimen made of any particular…

Q: 2- A piece of muscle specimen has the initial length of 30mm and square cross section with original…

A: Stress : Stress is the force applied to a material, divided by the material's cross-sectional area.…

Q: Poisson's ratio is defined as Lateral strain divided by longitudinal strain Longitudinal strain…

A: To find : Poisson's ratio is defined as

Q: Is internal work also called strain energy?

A: Yes, the internal work is also called strain energy. When an external load is applied to the body,…

Q: The general equation that describes the relationship between the stress and the strain for ductile…

A: Correct answer: 3. Hooke's law

Q: Hooke's Law defines which one of the following regions of the stress strain relationship for…

A: Solution.jpg

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A: Given data: A 50 mm cube of graphite reinforced material was extended by 0.90 mm in the 1-direction.…

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A:

Q: 2.24 Given reasonable values of the material parameters for bone, estimate the axial stress in your…

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A: In the field of mechanical engineering, the selection of materials and cross-sectional geometry of a…

Q: Three rectangular rods experience the same deformation o. Which rod will experience the largest…

A: The normal strain produced in the rods is given by the following expression as, ε = δ / L Where, ε…

Q: Which of the following can be characterized with yield stress?     Thixotropy     Plastic…

A: Four types of fluid are given for which we have to select the option which has yield stress.

Q: If the material behaves in a linear elastic manner, how does Hooke's law apply?

A: Hooke's Law states that stress is directly proportional to the strain within the proportional limit.…

Q: A specimen is originally 300 mm long, has a diameter of 14 mm, and is subjected to a force of 2kN.…

A: The answer is provided below.

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.