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A worker standing on a truck uses rope AB to slowly lower object B down a chute. The object weighs 100 lb and fits loosely against the walls of the chute and slides with no friction. In the position shown, the center of object B is halfway down the chute. The person's hand A lies in the xy plane, and the chute lies in a plane parallel to the yz plane.
(a) Determine the tension in rope AB and the reactions between the object and the chute.
(b) If the worker wishes to slowly pull the object up the chute, explain how your answers to Part (a) change.
Explain how this kind of sprinkler is started, and subsequently operated at constant oscillating speed. What is the physical significance of the zero torque condition with the Pelton wheel rotating?
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The ratio of rotor exit mean diameter to rotor inlet tip diameter is chosen as 0.49 and the required rotational speed as 24,000 rev/min.
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Water flows through the pipe at a constant average velocity of 0.5 m/s into the the tank having the width of 1.5 m. Determine the relation between the time needed to fill the tank to a depth of h = 3 m and the diameter D of the pipe at. Plot the time..
a refrigerator removes heat from the refrigerated space at 2 oc at a rate of 300 kjmin and rejects heat to the kitchen
Find the mass flow rate of air into the engine and If the velocity needs to be restricted to 150 [m/s] estimate the diameter of the restriction.
a jet-propelled object has a straight-line motion according to the equation x 2 t2 - 2t - 2 where x is in meters and t
1. an orthopedic called mend-a-bone is made of an extracellular matrix extract plasticized with glycerol mw92 to help
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