Unformatted text preview: 71.1. 5:
_ . ‘3
111 _,/ Lab BFContinuity Equation
— Name Date ”I 0’5} J‘W? Time Will Who/5: '
l} )1.“ {2.61.13 fl
ailM \__ 3 (fir? / It
73..  ‘ f l v: l
1,11 N . I
.r\ ,I
H W/ 1
“P , _
Data H’ f :35” :1"
Container: Circular with D: ~~I" 9 m At: .{l/rfﬁ “1 m2
. , "l
Hole: Circular with d: :05 m . Ah= ADMm n12
Assume vh: (2gh)U2 , From Bernoulli equation (to be covered soon in class)
i will
11.: .sz m I ll aw»:
hf: 4371 m l/p/l"
1/17“ {4 *1. 1
Time readings: {111111; 11‘ {1, /. ‘ I: 1}
Withthe lid on: t1: [NM (3) 1 "I111: , "
Without the lid. t2=_—— (s) 'l W a) Estimate how long it would take for the water level to go from ho to hf when the
container doesn’t have the lid on. Using the continuity equation, we get (see the lab description for details): V2111: —A 3 Substituting v2 =‘/2gh and integrating we obtain:
—2
Ar hm + C When 1:0 h=h{,; CI = M kg” ”W + 2A 112 1/2 A; j ’1 I): ﬂ j
_ r ‘ .
— «lg/1;. (ho — hf ) Wm H I A ...
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 Fall '08
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 Trigraph, Lab BFContinuity Equation

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