Engineering, 19.12.2019 05:31 munchyswish
One crystalline form of silica (sio2) has a cubic unit cell, and from x-ray diffraction data it is known that the cell edge length is 0.700 nm. if the measured density is 2.32 g/cm3, how many
(a) si4+ and
(b) o2- ions are there per unit cell? the atomic weights of si and o are, respectively, 28.09 g/mol and 16.00 g/mol.
Answers: 2
Engineering, 04.07.2019 03:10, lauriepdx17
What precautions should you take to prevent injuries when dealing with heavy loads?
Answers: 1
Engineering, 04.07.2019 18:10, settasav9641
Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.
Answers: 3
Engineering, 04.07.2019 18:10, bckyanne3
Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.
Answers: 1
One crystalline form of silica (sio2) has a cubic unit cell, and from x-ray diffraction data it is k...
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