Engineering, 06.03.2021 01:40 angelinacortes11
Unit 2.3 Review
1. A 25 ft long steel wire has a cross-sectional area of 0.0172 in.?. When a force of
120 lb is applied to the wire, its length increases by 0.34 in. Determine:
a. The stress
b. The strain
c. The modulus of elasticity of the steel
Answers: 1
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Engineering, 04.07.2019 18:10
Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)
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Engineering, 04.07.2019 18:10
Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k
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Engineering, 04.07.2019 18:20
Prove the equivalence between the two statements of the 2nd law of thermodynamics (i.e., a violation of one statement leads to the violatio the other statement)
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Unit 2.3 Review
1. A 25 ft long steel wire has a cross-sectional area of 0.0172 in.?. When a force...
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