EXAMPLE 14.2. A copper wire of 2 mm diameter is required to be wound around a drum. Find the minimum radius of the drum, if the stress in the wire is not to exceed 80 MPa. Take modulus of elasticity for the copper as 100 GPa. SOLUTION meter Of WITC (a)- mm ;

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Q: A metal bar AB of length L is held between rigid supports and is heated non-uniformly in such a…

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Q: SITUATION. As shown in the figure below, a rigid bar with negligible mass is pinned at O and…

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Q: A circular tube of aluminum is subjected totorsion by torques T applied at the ends (see figure).The…

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Q: 1. A steel rod of 20 mm diameter passes centrally through a copper tube 40 mm external diameter and…

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Q: The stresses on the surface of a cast iron machine component are sx = 85 MPa, =-230 MPa, and fy =…

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Q: 2.58 Knowing that a 0.02-in. gap exists when the temperature is 75°F, determine (a) the temperature…

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British Gravitational Bg System Of Units

Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.