Engineering, 07.03.2020 05:02 jenn8055
One mole of iron (6 1023 atoms) has a mass of 56 grams, and its density is 7.87 grams per cubic centimeter, so thecenter-to-center distance between atoms is 2.28 10-10 m. You have a long thin bar ofiron, 2.0m long, with a square cross section, 0.15 cm on a side.
You hang the rod vertically and attach a 231 kg mass to the bottom, and you observe thatthe bar becomes 1.01 cm longer. Fromthese measurements, it is possible to determine the stiffness ofone interatomic bond in iron.
What is the spring stiffness of the entire wire, considered as asingle macroscopic (large scale), very stiff spring?
Answers: 1
Engineering, 04.07.2019 18:10, danksans7011
The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false
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Engineering, 04.07.2019 18:10, keigleyhannah30
Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.
Answers: 3
Engineering, 04.07.2019 18:10, oshawn108
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
Answers: 2
One mole of iron (6 1023 atoms) has a mass of 56 grams, and its density is 7.87 grams per cubic cent...
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