Two hoses, one of 20 mm diameter, the other of 15 mm diameter are connected one

Question

Two hoses, one of 20 mm diameter, the other of 15 mm diameter are connected one behind the other to a faucet. At the open end of the hose, the flow of water measures 10 L/min. Through which pipe does the water flow faster?

the 20 m

the 15

or the same ?

Seawater has a specific gravity of 1.25 (or 1.25 times the density of pure water). If a chemist empties a glass of seawater, how will it fall through the air?

1.25 times faster than fresh water.

1.25 times more slowly than fresh water.

At the same rate as freshwater.

2.5 times more slowly than fresh water.

1.25 times faster than fresh water.

1.25 times more slowly than fresh water.

At the same rate as freshwater.

2.5 times more slowly than fresh water.

Explanation / Answer

apply A1V1 = A2V2

so through lesser diameter , speed will be larger

15mm will have faster flow
---------------------------

C.   

At the same rate as freshwater.

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