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Unformatted text preview: Exam 4 s  '
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i Physics 102,. 2008 Sumimer Session I mistmctdri Bennett Kaiafut ' " 1') The patientin Figure 1532 is to receive an intravenous injection of medication. In order to work properly, the
: pressure of ﬂuid conteining the medicationinust be 109 kPa at the injection point. (a) If the ﬂgid has e density of
: 1020 kg/msiﬁnd the Height at which the bag of ﬂuid must be suspended abqve‘ the patient. Assume that the
pressure inside the bag is orte atrriospher'e.‘ (b) If a less dense ﬂuidi9 used instead, :ﬁust the height of
suspension Be increased or decreased? Explain. ‘ , [Mi w" (a) ,‘ u m Wm as we; «yre7 I pew") v5. ﬂéslluk froisuitj}ju1( {Maull ‘: ; Figure 1562 ‘ 90‘} 4° 5+,de with 0,9 M} oim‘ frag: H Fwd “ 5 ngqulLSS/J 05 ‘Hme. gamer» abaui‘ ﬂange. v5 “Imam; Press“, I
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0559+ Jar6M I‘lA emit», ‘  . 2) A typical arteriole has a diameter of 0.030 mm and carries biooci at the rate of 5.5 x 106 (3116/5. (a) mat is the
speeci of the blood in an arteriole? (b) Suppose an arteriole branches into 340 capillaries, each with a diameter of 4.0 x 10‘6 In. What is the biood speed in the capﬂlaries? (The 10W speed in capillaries is beneﬁcial; it
promotes the diffusion of materials to and from the blood.) (OK) 77W. volumejlaw rad? 5‘s V'A’ wimp; ,4” {k 01w ~5Qc+fywl aw raft. 'm e'aoa’crfN/Wz assumiy
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Qm By divide? 1:7 ‘ﬂ‘ CFWS*'S‘EC+"W “M I We. a m ﬁWocL) {,4 ,Lo 3% 0"; cﬁ/S 3:) Suppose I45 moles of=a monatomic ideal gas undergo an isothermal} expansion from 1.00 m3 to 4.00 m3 as
_ ; shown in Figure 18—25. (a) What is the temperature at the beginning and at the and of this process? (b) How _ much workais done by the gas during this expansion? k3£$.38.>_<_l0‘23 J K'i ; _.Rm8.314}' K“1 mol—1 1;”.
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are 01+ 4k ma! .3 4A gm. (4%) 0min}, am F53+Lm~3 Imus) {dyad emeryr, clot) m‘.‘ slugL +keaL3M. Q 7: nKT In ‘92 (jwvﬂ Jakfuhmla 5A“; ﬁ’wuk art dong“ 4) An 82—kg parachutist descends through a vertical height of 350 m with constant speed. Find the increase in
entropy produced by the parachutist, assuming the air temperature is 21 °C. SM“. «Hm faraclsdd'f)" In.) (emfMal 5/0i’elﬂj #5. Jrﬁan'HUnnl‘ ‘ Fahd”, {My} raw/“felon? Heft/(ma? Ixan Even Jﬁsipghx)‘ (“WWW/1 {J3 Lent?) jﬂ‘é’h‘é". v) I Q:ML9.D%/ FINA 5) At the ioeal icounty fair, you watch as a blacksmith drops a (ISOkg iron horseshoe into a bucket containing 25 ' kg of water? (3)11? the initial temperature of the horseshoe is 450 °C, and the I ‘: initial temperature of :the water is 23 °C, what is the equilibrium temperature of the system? Assume no heat is
exchanged With the smirroundings. (13) Suppose the 0.50~kg iron horseshoe had been a 1.0kg lead horseshoe _ instead. Weuid the equilibrium temperature in this case be greater than, less than, or the same i
as in part (a)? Explain. ﬁ ith The heat capacity ofieenis 0.13*103 I/(kg‘K); that of iron is 0.47*103 fl(kg*K). : .5 ’ v5 C //5“5ar #511! L“) C19)
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 Spring '08
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 equilibrium temperature, mistmctdri Bennett Kaiafut, ‘Hme. gamer» abaui‘, ISOkg iron horseshoe, Jar6M I‘lA emit»

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