The three common phases m*fi6xhw8b/ kof matter are

  Density is

  Substance A has a densiti)kv pm*1nr+ymx8. cnhf5x4 o2y0hes y of $3.0 \; g/cm^{3}$ and substance B has a density of $4.0 \; g/cm^{3}$. In order to obtain equal masses of these two substances, the ratio of the volume of A to the volume of B will be equal to

  Pressure is

  Which of the following is not a unit of oz 9m+ fke,te ha4f5+dpressure?

  Consider three drinking glasses. All three 0hro )s(div8fffx8 g3 have the same area base, and all three are filled to the same depth with water. Glass A is cylindrical. Glass B is wi o3ifs(d)xh r8fv08gf der at the top than at the bottom, and so holds more water than A. Glass C is narrower at the top than at the bottom, and so holds less water than A. Which glass has the greatest liquid pressure at the bottom?

  What is the difference between the pressures inside and out t8ply mjccn6cwd 59eg1.p*s7 side a tire called?

  When atmospheric pressure changes5 4cjet0p azp/*vo6tx05o(y8 qorqq p, what happens to the absolute pressure at the bottom of a pooop5vex /qp(*tc4ap o5q0 t6j 0rq8yzol?

  You are originally 1.0 m beneat 2-+vmy;t; uixt;tyxyh the surface of a pool. If you dive to 2.0 m beneath the surface, what tty;mtvy;; 2+xuxi-yhappens to the absolute pressure on you?

State Pascal's princip;5k1 ;dwvqa jxf,ww 4) yxp 6xkre1ic;x*anw.le.

State Archimedes' princi9c; nve u5wwvu9 vpt+-ple.

  $50 \; cm^{3}$ of wood is floating on water, and $50 \; cm^{3}$ of iron is totally submerged. Which has the greater buoyant force on it?

  As a rock sinks deeper and deeper intof(yitz *:ohd . p f,zxd.e7a*j water of constant density, what happens to the bufti(.zj x. * *hye:fa 7z,ddopoyant force on it?

  Salt water has greater density than fresh water. A boat floats in both freshv 6+ irjf(izr) water and in salt wjrvri6f i+ z)(ater. Where is the buoyant force greater on the boat?

  Salt water is more dense than fresh water. A ship floats in both qf a1i/8.qgle5v4vd v+- jhfyfresh water and salt water. Compared to the fresh water, the volume of water displaced a+yh vl8/dq ff-.15j qiev4gvin the salt water is

  A steel ball sinks in water butj)4ck tnzsf2b*8 ; kymu8 bch2 floats in a pool of mercury. Where is the buoyant force on the baln8mb *;ycztfh k2 8s)j2cku b4l greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, ,ro0xkh r;ul8 w3.svl right next to a 10-kg piece of lead. Which has the ho8.uw;lrsl0v, x r3 kgreater buoyant force on it?

  A piece of iron rests on top of a piece of wood floating in a bathtub. 7fprd1.)l hsrIf the iron is removed from the wood, what happens to the water level in th1.lhp7) dr frse tub?

  A piece of wood is floating in a bathtub. A second piece of wood sits ond;vvu ot/sf1 h0;q, v 0.dyzve top of t/htd0;qedv sv;u,0 y1v fv z.ohe first piece, and does not touch the water. If the top piece is taken off and placed in the water, what happens to the water level in the tub?

  Water flows through a pipe. The diameter of the pipe at point qqj *m*(u3d ,ous pvu.B is larger than at point A. Where is the speed of o u.sdj(u*,mvu3pqq* the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe widens toh.,3(/jawf xai qmtf omb+m6 7 twice its original radius, what is the flow speed in the w6i. oa xw,qfa+ m7j(mh3bt f/mider section?

  An ideal fluid flows at 12 m/s in a horizontal pi(1v)mdv) qx; f ndzc1spe. If the pipe narrows to half its original radius, what is the flow speed )s q xdd1cmv(vnzf;)1in the narrower section?

State Bernoulli's principlc5xupfmu8d 58x k5s p-e.

  Which one of the following is associated with the law of *kcr/r jetm*zen *)de*v :p0lconservation of energy ine*c:t0*/k* pem r) len*zdrjv fluids?

  As the speed of a moving fluid incp j486ihi4 psi4p j8qjwd(7kl reases, the pressure in the fluid

  Water flows through a pipe. The diab :j-1/cx p+h(.wqc2vjbbrf ameter of the pipe at point B is larger than at point A. Where is the water pressurebh/cqaj -2+jv p(cwf.1xbbr : greatest?

  When you blow some air above a paper st g7k8 c qfg40vx/w9tx -om;rssrip, the paper rises. This is because

  A sky diver falls through the air at terminal velocity. The 7qxvr51zgizzx-z7b:8 vp *s dforce of air resistance on him ixb5 7p d zsixz 8rzv1-7v*qzg:s

  Two Styrofoam balls, of radii R and 2R, are released simultapan v1 ljd93+)sw ne8yneously from a tall tower. Which will reach thej1 a+npse9 ) 3ydlvwn8 ground first?

  When a small spherical rock of radius r falls through watero ode0utk m/ (6*4rkah, it experiences a drag forchdo/kou *ame 4rkt 06(e $F=arv$, where $v$ is its velocity and $a$ is a constant proportional to the viscosity of water. From this, one can deduce that if a rock of diameter 2.0 mm falls with terminal velocity, $v$, then a rock of diameter 4.0 mm will fall with terminal velocity .

  Which has the greatest effect on the flow of pw4w 34nbk23j- cpql nfluid through a narrow pipe? That is, if you made a 10% change in each of the quantitie -2b3pj4wwlc npq3 4nks below, which would cause the greatest change in the flow rate?

  Two horizontal pipes are the same length, but pipe B has twicep+poj5n()n h(ggx, ag9 *dlpt the diameter of pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the,*((+9jatxop) g pnl gpg 5hnd lengths of the pipes. If the flow rate in pipe A is Q, what is the flow rate in pipe B?

  Two horizontal pipes have the same diam7 e7x+gs ;qzameter, but pipe B is twice as long as pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the lengths of q m7x;+easg 7zthe pipes. If the flow rate in pipe B is Q, what is the flow rate in pipe A?

  When soup gets cold, it often tastes grea njuhb9 3mbh6;sy. This "greasy" taste seems to be associated with oil spreading out all over the surface of the soup, instead of stayinghjm buh3 n9;b6 in little globules. To us "physikers", this is readily explained in terms of

  When a tube of diameter d is placed i +/hiu-x0 oea1l8ycvyn water, the water rises to a height h. If the diameter were half as greaal +yohivyc18/ e u0x-t, how high would the water rise?

  Certain insects, such as the wa ).e*bq:irw9ywp m;dnter bug, are sufficiently lightweight that they can run on top of water without breaking the surface tension. Water bug A has weight W. Water bug B is twirydq9mb . w;i:new*p )ce as big as bug A, in all dimensions. That is, bug B is twice as long, twice as wide, etc. What is the weight of bug B?

  Certain insects, such as the wan3m+hy x*/a4o b 5varssly*+p ter bug, are sufficiently lightweight that they canbn av5*sphxmr 4 /+ysa+yo*3l run on top of water without breaking the surface tension. This is possible because the water, due to surface tension, exerts an upward force on the bottom of the bug's feet. Suppose that the maximum possible upward force on the feet of water bug A is F. Now suppose that water bug B is twice as big as bug A in every dimension. That is, bug B is twice as long, twice as wide, etc. What is the maximum upward force on the feet of bug B?

  A plastic block of dimensihdy6-.4iimc pbuvc4k 9. 92oasippw )ons 2.00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. What ispd9ci shpi24 v 6p uyi)ck4 b9a-ow..m its density?

  A liquid has a specific gravity of 0.357. Whatc 1ld(m kvd4g7 is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm. What is tv,(ochs(b xusylx1 ))9c f z1ehe maximum pressure ithcxzsyl xu1)1v)feo sb (( c,9 can exert on a horizontal surface?

  A person weighing 900 N is standing (b ak-se +rtx m8- mp8rni.as4vokn37 on snowshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand at a depth of 120.0 20z-hav thy1 v*p;t aa)5vchbsf 0zi+m in the ocean?aby ;av +1-z hfh*5 zpavthti0)2v0s c

  A circular window of 30 cm diameter in a submarine can withstandm:qduwn39r m 5 a maximum force9 5nqmw:3rm du of $5.20 \times 10^{5} \; N$. What is the maximum depth in a lake to which the submarine can go without damaging the window?

  What is the gauge pressure if xb;gxv67z,7eah(tkr 3nu g7t the absolute pressure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below the surface of w-. qyhif r z(lg4mi,/sea? (The density of seawater is im-4 g.yrfh(qizl/w,$1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m v q, a7l79w8+s3wm rrbt9br lgbelow the surface of sea? (The density q 8rb379 s7w,9mtrgvralb+ lwof seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston ofip(y lami17d 6 a hydraulic machine. The small pisto7imya (ldi1p 6n has area $2.0 \; cm^{2}$. If the large piston has area $40 \; cm^{2}$, how much weight can the large piston support?

  In a hydraulic garage lift, the small piston has a radius of 5.0 2/tidi5n uc-j9m:3mdwtv 6z kcm and the large piston has a radius of 15 cm. What forckz-cmt 2 d 5:/i6tiund vmw39je must be applied on the small piston in order to lift a car weighing 20,000 N on the large piston?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter hydraulic pisto wu+-zx:rt3 qxhw42 v 87njic7mjn an9n. What force needs to be applnnw8c+ xt29 naq77r z h4:3jjmwvixu-ied to a 5.0 cm diameter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter of 8.0 cm, and its l3 e/ae1:te .azh zme1)a/ ch43 upruqdarge piston has a diameter of 40 cm. The lift raises a load of 15,0a)m3hatq1c .1 u3r: zhdp/euzeaee4/00 N.
(a) Determine the force that must be applied to the small piston    $N$ (fill in numerical value only)
(b) Determine the pressure applied to the fluid in the lift    $\times 10^5 \; Pa$ (fill in numerical value only)

  A block of metal weighs 40 N i: 0wyf :ibec4z kt6ws6n air and 30 N in water. What is the buoyant force of the wat:t4y k:czw0fw e i6s6ber?

  An object has a volumkpsrjohq 6q6qx:ewjcif),1xmb-25 5e of $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is supported by a string while submerged imrg .ka - vjgcl(+)zv/n water. What is the tension in the string? (The specific gravity of iron is 7.86. m/z(-g.g)la+v ck vjr)

  If the density of gold is,bcn7+jq dh7 * ajcb6v $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel subs *,*l9,vc*vuovco bsmarine (density = $7.8 \times 10^3 \; kg/m^{3}$) of mass 20,000 kg. What is the tension in the lifting cable (1) when the submarine is submerged, and (2) when it is entirely out of the water?

  An object weighs 7.84 N when it issj) 6 lkx4bw kmj :9z -8n7(bauq-ffrj in air and 6.86 N when it is immersed in water. What is the snx m a68wf z-s()jjqjrulk7-: bkf4b 9pecific gravity of the object?

  A container of water is placed on a scale, and the scale reads 120 g. Now a 20-g:/w4bud 0vw8htfv3sss7tdvwrhw+ 7u *o0 h w; piece of copper (specific gravity = 8.9) is suspended from a thread and lowered in8os vwd:wt*; 00 /sd hw4v bt3whu vf7+rwh7suto the water, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum with a mass of 1.0 kg axp)mx ahn:b, xeu)*b+5lu u4 rnd density of $2700 \; kg/m^{3}$ is suspended from a string and then completely immersed in a container of water. The density of water is $1000 \; kg/m^{3}$.
(a) Determine the volume of the piece of aluminum    $\times 10^{-4} \; m^3$ (fill in numerical value only)
(b) Determine the tension in the string after the metal is immersed in the container of water $N$ (fill in numerical value only)

  A cylindrical rod of length 12 cm and d4yrx41i,tge. pu: lr viameter 2.0 cm will just barely float in water. Whatl4i4pr r1 uy.xve,tg: is its mass?

  A rectangular box of negligibojf x r6v*s2)h qgg-u(k+2 zchle mass measures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loaded onto the box be2uz jcgoshkgqh)+(x f*62-rvfore it sinks in a lake?

  A $1.0 m^{3}$ object floats in water with 20% of it above the waterline. What does the object weigh out of the water?

  An object floats with half its volgb+ 6q+tid,c oqh)c.rv7zx6 jume beneath the surface of the water. The weight of the displacvq goc6zbch6),rjtqx+.di+7 ed water is 2000 N. What is the weight of the object?

  A solid object floats in water with three-fourths of its volume eda3g)-;w8rg2* icbyochg) z beneath the surface. What is the object')r8gw;gdazc*y -ei h 2o3gc)bs density?

  A 200-N object floats with thre pex)rl0 rx/,u 7kil;ne-fourths of its volume beneath the surface of the water. What is the bpl ,0;7xe ri)kluxrn/uoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thiy duoki5px4c-i p1s -+ck. What is the minimum area of the floe that will just s - +idoyxck4 1p5p-iusupport the bear in saltwater of specific gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pipe of diameter 3.0 w-effvi+p+t*c q ,g ofy54 /.8pwiain1k fw1zcm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diamet-lgbp5 u 0nbfrh89t 6per pipe at 1.0 m/s. There is a 2.0 cm diameter restriction in the line. What is the velocity in this r -p utpf9h b8n0rb5g6lestriction?

  Water flows at 12 m/s in a horo5aem.2sg*jd, 1i9uam /b //(s: lv mmsumgyyizontal pipe with a pressure of $3.0 \times 10^4 \; N/m^2$. If the pipe widens to twice its original radius, what is the pressure in the wider section?

  How much pressure does it take for a pump to supply a drinking ovv4m eak k ,qhdo 1p8sc4x+mxl)k3 7.fountain with 300 kPa, if the fountain is 30.0 m a.e4hk73d+v l a,kmomx4 k1xcp)qo8sv bove the pump?

  A hole of radius 1.0 mm occurs in the bottom of a water storage tank thak6cuetcwd2 6s 0 muo52t holds water at a depth of 15 m. At what rate wil u02s62uwo6d mtcc5 kel water flow out of the hole?

  Water flows through a horizontalj8m5bydgt y:d v strfl0 8d9i3+l3/cy pipe of cross-sectional area $10.0 \; cm^{2}$ at a pressure of 0.250 atm. The flow rate is $1.00 \times 10^{-3} \; m^{3}/s$. At a valve, the effective cross-sectional area of the pipe is reduced to $5.00 \; cm^{2}$. What is the pressure at the valve?

  SAE No. 10 oil has a viscosity of 0.20 Pa-s. How long would it take to pour 4.0/sl;2ga xrm;5 n2rte c L of oil through a funnel with a neck 15 cm long and 2.0 cm in diameter? Assume the surfacelm2ex r;c2grs/a;t n5 of the oil is kept 6 cm above the top of the neck, and neglect any drag effects due to the upper part of the funnel.

  Suppose that the build-up of fatty tissue on the wall of an artery decrea ex/yfg.df2u3 :2ew7 vy (jyllsed the radius by 10%. By how much would the pressure provided by the heart havef.xw f2l ly3/(yedj2 gu:7 yve to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of water. Tube A has b7 jj3a ay26jl tp/yh lt)syt)5 r5-cjtwice the diameter of tube B. If water j)j5 rcy65l3p /s tjtbh jy)aty7l-a2 rises 24 cm in tube A, how high will it rise in tube B?

  The surface tension o:wbow:i0 ir,qqs, e4ts4:ki v f water is 0.073 N/m. How high will water rise in a capillary tube of diameter 1.2 mm:wiio: tb,qir se0kwq,:vs 44?

  232

  To what height would water at 0 degree Celsius rise in ah6e a1 ae37x5pqrh*zke :gxemy /n.-x glass capillary tube with a d:exe5k3z*h1.x m 7 r ghyq/aaep6x-eniameter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and the water rish,, gk8aveb:xat1 e1qes in the tube to 4.0 cm above the level of the pan. The surface tension in the liquid is lowered to one-half its original value by the addition of some soap. What happens to the height of the vx8h aab1q:1, ek,teg liquid column in the tube?

  Consider a rectangular frame of length :qx1 uk vm*gn 7ndq3.e0.120 m and width 0.600 m with a soap film formed within its confined area. If the surface tensiok me*q3gnn 1 q7dvx:.un of soapy water is 0.0260 N/m, how much force does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and width 5 cm, and9siz9 +yxzw)l is built in such a way that one of the longer sides can be moved without bursting the soap film contained in the frame. Soapy water has surface tension 0.026 N/m. How much work is required to move the adjustable long side so that the frame is 12 cm square?z +z)i xs9y9wl