Engineering, 28.09.2019 00:30 reyesmtz5414
Ashaft made of aisi 1020 cold-drawn steel rotates at 1600 rpm and transmits 8 hp. (a) using the maximum shear stress theory, determine the minimum acceptable diameter of the shaft so that there is a factor of safety of 1.8. (b) suppose the shaft still transmits 8 hp, but now the shaft rotates at twice the original speed, i. e., at 3200 rpm. before doing a calculation, can you speculate about whether the required minimum diameter would increase, decrease or stay the same? do the calculation. did it turn out as you expected?
Answers: 2
Engineering, 04.07.2019 18:10
A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.
Answers: 2
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
Answers: 2
Engineering, 04.07.2019 18:10
Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.
Answers: 1
Engineering, 04.07.2019 18:20
Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.
Answers: 3
Ashaft made of aisi 1020 cold-drawn steel rotates at 1600 rpm and transmits 8 hp. (a) using the maxi...
History, 27.08.2019 14:10
Mathematics, 27.08.2019 14:10
Mathematics, 27.08.2019 14:10
Mathematics, 27.08.2019 14:10
Physics, 27.08.2019 14:10
Mathematics, 27.08.2019 14:10
Mathematics, 27.08.2019 14:10
Mathematics, 27.08.2019 14:10
History, 27.08.2019 14:10
History, 27.08.2019 14:10
Geography, 27.08.2019 14:10
Biology, 27.08.2019 14:10
History, 27.08.2019 14:10
Mathematics, 27.08.2019 14:10