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A ship has an engine that rotates clockwise when viewed from the front. It has an effective moment of inertia of 250 kg m2 and rotates at 400 rev/min. Calculate the magnitude and effect of the gyroscopic torque when the ship pitches the bow (front) down at a rate of 0.02 rad/s.
a solid cylinder 100 mm in diameter generates heat at a uniform rate of 7 x 106 wm3. the thermal conductivity of the
an automobile tire with a volume of 0.5m3 is inflated to a gage pressure of 200 kpa. calculate the mass of air in the
it is proposed to generate electrical power by installing a hydraulic turbine-generator at a site 70 m below the free
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a 115-v shunt motor develops 21 ib-ft when the armature current is 12 a. as the load on the motor is increased the
a spring loaded device imparts an initial vertical velocity of 50 ms to a 0.15 kg ball. the drag force on the ball is
a large guinea pig weighing 2 kg is riding a skateboard horizontally at a speed of 25 ms. then a force causes the
a metal matrix composite mmc is made of a 2024 al alloy matrix and continuous nbspboron fibers. the boron fibers are
now consider the cooling process. it takes place in a heat exchanger hx. warm air. at 75 f is flows into one side of
a thermopane window consists of two 6-mm thick glasses separated by a stagnant air space of thickness 6 mm. the thermal
a gas in a piston-cylinder assembly undergoes two processes in series. from state 1 to state 2 there is energy transfer
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