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The coefficient of static friction between block B and the horizontal surface and between the rope and support C is 0.40. Knowing that µA = 12 kg, determine the smallest mass of block B for which equilibrium is maintained.
Refrigerant 22 enters an insulated compressor operating at steady state as saturated vapor at -16oC with a mass flow rate of 1.5 kg/s. Refrigerant exits at 7 bar, 70oC. Changes in KE and PE from inlet to exit can be ignored.
a thin-walled closed end cylindrical pressure vessel for jet fighter lubricant with spherical end caps is internally
energy from a high-temperature reservoir at 750 k flows at a rate of 2.1 kw to a heat engine. if the engine rejects
A satellite is currently in a 300 km altitude circular orbit and needs to be transferred into a geostationary circular orbit. The mission designers require the transfer to have a semi-major axis of 35,000 km. compute the required delta- v values for ..
a partitioned chamber that is well insulated has frac12 filled with h2o at 500 deg f and 50 psia and the other frac12 a
in a design test of penetration resistance a 12-gram bullet is fired through a 400-mm stack of fibrous plates with an
if 10m3 of hydrogen at 0.4 mpa and room temperature is adiabatically mixed with 20m3 of nitrogen at 0.1 mpa and room
the hydraulic actuator moves the pin p upward with velocity v 2j ms. determine the velocity of the pin in terms of
Air at 1 atm 30 C and 80% relative humidity passes over the cold evaporator coil of an air conditioner at constant pressure. The air and condensate leave the coil at 18C. The moist air flow rate is 0.02 kg/s.
Test to determine whether there is a significant difference between mean Value Added by the Manufacturer and the mean Cost of Materials in manufacturing. Use the Manufacturing database as the sample data and let alpha be .01. Use the Manufacturin..
cells need to be close to a blood vessel to obtain sufficient oxygen. model the tissue surrounding a blood vessel as a
a projectile is fired at t 0 with an initial velocity of vi at an angle of ? with respect to the horizontal towards
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