Unformatted text preview: A l
P = —lr"
I A] I
Since the cross-sectional areas are proportional to the squares of the respective diameters d. this can be 1.Ivritten equivalently as and We have ebtained an espression fer v; in terms of given quantities. Substitute this in the expression we obtained above for ﬂip to express ﬂip in terms of given quantities.
l ﬂP=P£LV1-y2}+iﬂvi 1- d: For the numerical answer, substitute the given values. Note that sinoe the diameters a pear in a ratio, they may
he espressed in any unit-such as oentimeter. as given—as long as they are espresse In the same unit. 11.? 113 1_ as: [1.13 x 1ﬂ3](9.31}[3.43}+ an: x miHssef ]= 121900 P‘s ...
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- Summer '11
- numerical answer, cross-sectional areas, respective diameters, Sapling, Physics, Fluids, espression fer