Water is flowing in a weedy excavated earth channel of trapezoidal cross section with a bottom width of 0.8 m, trapezoid angle of 50° and a bottom slope angle of 0.5°. (a) If the flow depth is measured to be 0.52 m, determine the flow rate of water through the channel. (b) What would the flow depth be if the bottom angle were 1°. (note: a = 1 m1/3 /s and the manning coefficient for a weedy excavated earth channel is 0.03) V = 2/31/2 R₁==b+y/tan 6) 2y/sin 8 (b) Trapezoidal channel. I b P
Water is flowing in a weedy excavated earth channel of trapezoidal cross section with a bottom width of 0.8 m, trapezoid angle of 50° and a bottom slope angle of 0.5°. (a) If the flow depth is measured to be 0.52 m, determine the flow rate of water through the channel. (b) What would the flow depth be if the bottom angle were 1°. (note: a = 1 m1/3 /s and the manning coefficient for a weedy excavated earth channel is 0.03) V = 2/31/2 R₁==b+y/tan 6) 2y/sin 8 (b) Trapezoidal channel. I b P
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![Water is flowing in a weedy excavated earth channel
of trapezoidal cross section with a bottom width of
0.8 m, trapezoid angle of 50° and a bottom slope
angle of 0.5°. (a) If the flow depth is measured to be
0.52 m, determine the flow rate of water through the
channel. (b) What would the flow depth be if the
bottom angle were 1°. (note: a = 1 m1/3 /s and the
manning coefficient for a weedy excavated earth
channel is 0.03)
V =
2/31/2
R₁==b+y/tan 6)
2y/sin 8
(b) Trapezoidal channel.
I
b
P](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F353f4476-2375-44e0-a0df-7fa04e9ee69f%2Fa299e989-fdce-412b-8a7b-a078196cb8b7%2Fkoygeb8_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Water is flowing in a weedy excavated earth channel
of trapezoidal cross section with a bottom width of
0.8 m, trapezoid angle of 50° and a bottom slope
angle of 0.5°. (a) If the flow depth is measured to be
0.52 m, determine the flow rate of water through the
channel. (b) What would the flow depth be if the
bottom angle were 1°. (note: a = 1 m1/3 /s and the
manning coefficient for a weedy excavated earth
channel is 0.03)
V =
2/31/2
R₁==b+y/tan 6)
2y/sin 8
(b) Trapezoidal channel.
I
b
P
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