You are given three metal test samples, with the same chemical composition and differing yield stresses sizes: A: 120.0, B: 140.0 and C: 160.0 MPa. Samples A and B have been microscopically examined and have grain sizes of 100 mm and 25 mm. Based on this information, which of the following values do you think will be the closest to the grain size of Sample C?

Q: Using the diagram, determine the maximum diameter for DIA B.

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Q: rof. Eduardo Stefanelli www.stefanell.eng.br 0 5 10 45 40 35 30 12.4 mm

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Q: 1. The built-up beam pictured on the right is subjected to an internal moment of M = 75 kNm. a) At…

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Q: 120 mm 60 mm 90 mn D 80 mm C 45 mim 480 N

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Q: 10 mm Y 15 mm 30 mm 40 mm 10 mm 15 mm X

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Moment of Inertia

Inertia can be termed as a resistance offered by a body to change its state. A rigid body initially at rest will apply resistance when acted by an external force that tends to change its state of rest or velocity, or a body initially at motion will provide resistance in changing its state of velocity or motion for coming to a state of rest. In other words, Newton's first law of motion describes the law of inertia of a rigid body.