Water enters a rotating lawn sprinkler at a steady rate of 16 gal/min. The exit cross-sectional area of each of the two nozzles is 0.04 in2 and the flow leaving is tangential. The radius from the axis of rotation to the centerline of each nozzle is 8 in. (a) determine the resisting torque required to hold the sprinkler head stationary (b) determine the resisting torque associated with a sprinkler rotating at a constant 500 rpm (c) determine the angular velocity of the sprinkler if there is no resisting torque (ans: (a) 2.96 ftlb (b) 1.35 ftlb (c) 920 RPM
Water enters a rotating lawn sprinkler at a steady rate of 16 gal/min. The exit cross-sectional area of each of the two nozzles is 0.04 in2 and the flow leaving is tangential. The radius from the axis of rotation to the centerline of each nozzle is 8 in. (a) determine the resisting torque required to hold the sprinkler head stationary (b) determine the resisting torque associated with a sprinkler rotating at a constant 500 rpm (c) determine the angular velocity of the sprinkler if there is no resisting torque (ans: (a) 2.96 ftlb (b) 1.35 ftlb (c) 920 RPM
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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- Water enters a rotating lawn sprinkler at a steady rate of 16 gal/min. The exit cross-sectional area of each of the two nozzles is 0.04 in2 and the flow leaving is tangential. The radius from the axis of rotation to the centerline of each nozzle is 8 in. (a) determine the resisting torque required to hold the sprinkler head stationary (b) determine the resisting torque associated with a sprinkler rotating at a constant 500 rpm (c) determine the angular velocity of the sprinkler if there is no resisting torque
- (ans: (a) 2.96 ftlb (b) 1.35 ftlb (c) 920 RPM
Transcribed Image Text:8 in.
Nozzle exit
area = 0.04 in.2
Q= 16 gal/min
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