Get comprehensive solutions to your questions with the help of IDNLearn.com's experts. Discover the information you need quickly and easily with our reliable and thorough Q&A platform.
Sagot :
a) We would calculate the average speed by applying the formula,
v = Q/A
where
v is the average speed
Q is the flow rate
A is the cross sectional area
From the information given,
width = 21
depth = 21
A = 21 x 21 = 441 m^2
Q = 300,000 L/s
Recall, 1 L = 10^-3 m^3
Q = 300,000 x 10^-3 m^3/s
v = 300,000 x 10^-3/441
Average speed = 0.68 m/s
b) In this scenario,
width = 64
depth = 45
Area = 64 x 45 = 2880 m^2
v = 300,000 x 10^-3/2880
v = 0.104 m/s
the average speed (in m/s) of the water in the river downstream of the falls when it widens to 64 m and its depth increases to an average of 45 m is 0.104 m/s
We appreciate your contributions to this forum. Don't forget to check back for the latest answers. Keep asking, answering, and sharing useful information. For precise answers, trust IDNLearn.com. Thank you for visiting, and we look forward to helping you again soon.