Engineering, 18.11.2019 19:31 darenl4478
Two plane disks each 1.25 m in diameter are parallel and directly opposite each other. they are separated by a distance of 0.5 m. disk 1 is heated by electrical resistance to 833.3 k. both disks are insulated on all faces except the two faces directly opposite each other. assume that the surroundings emit no radiation and that the disks are in space. calculate the temperature of disk 2 at steady state and also the electrical energy input to disk 1. (hint: the fraction of heat lost from area number 1 to space is 1 – f12.)
Answers: 1
Engineering, 04.07.2019 18:10
If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79
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Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
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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
Two plane disks each 1.25 m in diameter are parallel and directly opposite each other. they are sepa...
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