Ii) water flows with an average speed of 3.0 m/s through a section of a stream that is 30 m wide and 1.0 m deep. the water then enters a 15 m wide section where the average speed of the water is 2.0 m/s. how deep is that 15 m wide section of stream (3 points)?

The 15 m wide section of the stream is 3 m deep.

Explanation:

The Flow rate of the water remains constant throughout.

Flow rate = Velocity x depth x width

Flow rate = (3)(30)(1)

Now the depth,width and velocity of the flow stream has changed but the flow rate still remains same. So,

Assuming depth to be D,

90 = (2)(15)(D)

D = 3 m

what is the actual question though?

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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