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Does a stream's velocity increase or decrease downstream?
increase
Why does the velocity of the river increases downstream?
It won't increase BECAUSE it goes downstream. Rather, the speed of the river depends on other factors, such as how narrow the riverbed is, or on the slope.
Why does river velocity increase downstream?
Velocity increases in a downstream direction because more sources of water combine depth and width. A constant flow of water would result in a higher river velocity.
Does the volume of water in a river increase further downstream?
yes
What causes water erosion to increase?
An increase in volume or velocity of the water will increase erosion
How does the gradient of a river affect its flow?
The gradient of a river is mostly flat or downhill which means that as the water flows it is affected by gravity. The steeper the gradient goes downhill, the more gravity will affect the water which will make the water flow faster (increases the velocity).
Why does the valley width increase as you go downstream?
The water is running faster and has eroded the bank.
Why does the rivers wetted perimeter increase as we travele downstream?
Because the Width and Depth both increase downstream. This means the wetted perimeter will also increase.
How does a stream's gradient affect its velocity?
the difference in velocity is mostly due to the great efficiency of the large downstream channel.
What is the greatest velocity that a boat on a river can attain if the boat's motor moves at 10 km per hr and the river's current is 8 km per hr?
Boat WRT land, downstream 10 + 8 = 18 KMH Boat WRT land, upstream 10 - 8 = 2 KMH Boat WRT water 10 KMH
A boat travel 20 km upstream in 6 hrs and 18 km downstream in 4 hrs Find the speed of boat in still water and the speed of water current?
Let the velocity in still water be V and the current be U. The net velocity upstream (against the current) is 20/6 = V - U . The net velocity downstream is ,18/4 = V + U. Add the equations to get 7.83 = 2V . Subtract the equations to get, 1.17 = 2U. So, V= 3.91 and U = .58
Why do the number of bacteria increase downstream from the outflow?
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