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1. A motor gives gear A an angular acceleration of aA = (2 + 0.006 u2) rad> s2, where u is in radians. If this gear is initially turning at vA = 15 rad> s, determine the angular velocity of gear B after A undergoes an angular displacement of 10 rev.
2. A motor gives gear A an angular acceleration of aA = (2t3) rad> s2, where t is in seconds. If this gear is initially turning at vA = 15 rad> s, determine the angular velocity of gear B when t = 3 s.
an advertising sign is suspended from a horizontal rod and is allowed to swing under wind forces. the rod is to be
The concrete walls and roof of a garage are 15-cm thick. The inside dimensions of the garage are 8-m long, 6-m wide, and 2.5-m high. The door is made of 12-mm thick hardwood and is 6-m wide and 2.5-m high. The garage is modeled in the figure below. O..
A vertical piston-cylinder device contains a gas at a pressure of 100 kPa. The piston has a mass of 5 kg and a diameter of 12 cm. Pressure of the gas is to be increased by placing some weights on the piston. Determine the local atmospheric pressure a..
The horizontal wye fitting in Fig splits the 20°C water flow rate equally, if Q1 = 5 ft3/s and p1 = 25 lbf/in2 (gage) and losses are neglected, estimate (a) p2, (b) p3, and (c) the vector force required to keep the wye in place.
the retracting load on a 2 in diameter hydraulic cylinder increases from 10000 lbto 15000 lb. du to the compressibility
structure of body- centered cubic bcc crystal.a. the body-center atom in a conventional bcc unit cell has
If solar irradiation with GS = 750 W/m2 and the spectral distribution of a blackbody at 5800 K is incident on this material, determine the fractions of the irradiation that are transmitted, reflected, and absorbed by the material.
25 kg of water are placed in a rigid, initially evacuated container which has a volume of 2 m3 . After sitting for some time, the pressure stabilizes at 10.0 bars. What is the specific entropy (kJ/kg K)of the liquid vapor mixture?
at steady state. a power cycle generates 100 mw of electricity while discharging energy by heat transfer at a rate of
consider a piston-cylinder system containing 0.1 kg of water. initially the volume of the system is 0.0125m3 while the
a six cylinder four stroke spark ignition engine operating on the ideal otto cycle takes in air at 1 atm and 18 oc and
In the casting of steel under certain mold conditions, the mold constant in Chvorinov's Rule is known to be 4.0 min/cm2, based on previous experience. The casting is a flat plate whose length = 35 cm, width = 10 cm, and thickness = 15 mm. Determine h..
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