SOLUTION
16.
Q = A * v = pi/4 (1.24)^2 * 0.82*100. cm^3/s (milliliteres per sec)
=> Q = 99.03 milliliters/sec (ANSWER).
17.
Volumetric current remains unchanged.
So.
Volumetric current after partial blocking or before
= 0.16 * 4.4 * 100
= 70.4 millilitres/sec (ANSWER)
18.
Let speed of water flowing into hose be v0 m/s.
As flow rate remains unchanged at entry and exit of hose.
Q (entry) = Q(exit)
=> pi/4 (1.2)^2 * v0 * 100 = (0.3) * 3.5 * 100
=> v0 = 0.3 * 3.5 *4/(pi*(1.2)^2) = 0.9284 m/s (ANSWER)
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