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A four-threaded worm drives a 60-tooth worm gear with shafts at 90°. If the center distance is 8.00 in. and the lead angle of the worm 20°, calculate the axial pitch of the worm and the pitch diameters of the two gears.
water flows steadily through a 30-ft-long pipe from a hot water heater to a faucet. the velocity is 9 fts. at the
Identify and understand each phase of the product development process: The assignment includes the practical application of the first few phases of a PD process.
The virus is spread through contact between sick and well members of the population. Let P be the proportion of the population that has contracted the virus. The proportion of the population that has been infected can be expressed by the first ord..
hydrogen h2 at 77 c 4bar enters an insulated chamber at steady state where it mixes with nitrogen n2 entering as a
the following factors need to be tested through a doe. it deals with a product made from these constituents. the
A small disk of diameter D1 = 50 mm and emissivity e1 = 0.6 is maintained at a temperature of T1 = 900 K. The disk is covered with a hemispherical radiation shield of the same diameter and an emissivity of e2 = 0.02 (both sides).
gaseous hydrogen at 10 bars and 27c is stored in a 100-mm-diameter spherical tank having a steel wall 2mm thick. the
water 15 c flows in a horizontal schedule 40 pipe that has a nominal diameter of 0.5 in. the reynolds number is re1000.
If the velocity of the airplane in its horizontal flight is 1050 km/h at the end of the 9 s, calculate the timeaverage increase ?R in air resistance. The mass of the rocket fuel used is negligible compared with that of the airplane.
the motion of the uniform slender rod of length l0.5 m and mass m 3 kg is guided by pins at a and b that slide freely
you are designing an ex vivo artificial organ. the cells in the organ cannot tolerate shear stress in excess of 0.5 gcm
A converging-diverging nozzle operates at steady state. Air as an ideal gas with k 5 1.4 enters the nozzle at 500 K, 6 bar, and a Mach number of 0.3. The air flows isentropically to the exit plane, where a normal shock stands. The temperature just..
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