The three common phases of matte yt1.k 40nnunxr are

  Density is

  Substance A has a density of c5+yba9 baeirt 2v,l.$3.0 \; g/cm^{3}$ 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( dddo24mk hwo:8wfrzc2 -y: s a unit of pressure?

  Consider three drinking glasses. All thr dxtldb0m u3 wzt.uxg,py wyv n.v4g)f30a+31ee have the same area base, and all three are filled to the same depth with water. Glass A is cylindrical. Glass B is wider 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 greatest4)x.u mngywa3wlt v pdxy 0vgb03d z.t,1u+3f liquid pressure at the bottom?

  What is the difference between the pre;jny .f89arsw ssures inside and outside a tire called?

  When atmospheric pressure changes, what happens to the absolute pressur/hvrl d: bxa3.jg0:pzy dj23p e at the bottjr .3jp2bpdvgd0z h :3al:/yxom of a pool?

  You are originally 1.0 m beneath the surfaf xuk(5s5n(q zce of a pool. If you dive to 2.0 m beneath the surface, what happens to the absolute pressure s(f (5qu5zxknon you?

State Pascal's princi7md e+1b dtw5gple.

State Archimedes' princip.l/c v70wlm ,cws*p bile.

  $50 \; cm^{3}$ 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 and3 8ls4v x1xshi deeper into water of constant density, what happens to the buoyant lv x4 s8s3i1hxforce on it?

  Salt water has greater density is5. f l9s:grrthan fresh water. A boat floats in both fresh water and in salt water. Whesrsi:g 5.lrf9re is the buoyant force greater on the boat?

  Salt water is more dense than fresh watv2ar(-,op66xl3 suxm na/bgg u,j k.zer. A ship floats in both fresh water and salt water. Compared to the fresh water, the volume of water displaced in the salt -36p jrol2k x( bs gx6zn,auauv/g.m, water is

  A steel ball sinks in water but floats in a pool of mercury.j2gxh(k fr-9h b.hb+ b0td y0a Where is the buoyant frkb2yh dbfj+hg0.t0 h( b-9xaorce on the ball greater?

  A 10-kg piece of aluminum sits at lf0x(dxp ,eg(v0 0suz the bottom of a lake, right next to a 10-kg piece of lead. Which has the greaterxxvfzg ( (lu,s0ed0p 0 buoyant force on it?

  A piece of iron rests on top of a pies9h/ +lj5(j.t/cbrf/gks q lxpp8d 9uce of wood floating in a bathtub. If the iron is g .kl rh/s+ 5tj lb/(pq8j99 dcfxs/puremoved from the wood, what happens to the water level in the tub?

  A piece of wood is ft/)u .71 9xjqf98bed u bkbiarjm m)(yloating in a bathtub. A second piece of wood sits on top of the first piece, and does not touch the water. If the top piec9fiq jbuj8at1)m. dm rk)b7b/e9yx(ue is taken off and placed in the water, what happens to the water level in the tub?

  Water flows through a pipe. The diameter8x(ddabo 90ygu /ptg- of the pipe at point B is larger than at podx g9(o8-uatpgb0d /y int A. Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a hor8 wf,l01uai2 u sot7viizontal pipe. If the pipe widens to twice its original radius, what is the flow speed ino80viuil2,w u1 f7at s the wider section?

  An ideal fluid flows at 12ac.ft ve:w)+ xw.iznvr* 1cl( m/s in a horizontal pipe. If the pipe narrows to half its original radius, wha.1*r)z .( +wxav:eltn cvifcwt is the flow speed in the narrower section?

State Bernoulli's principle8w mscozc*o01/x 9gfg.

  Which one of the following is a/twx*ixhkkpqssl) q*i7gg +,x 4g ; ua0j9p t2ssociated with the law of conservation of energy in flukh/isq;ti*l 2axx kp g0)jx+ w47gt ,*qup g9sids?

  As the speed of a movingmaj w.;qi vm()z)n2i4 ad4em s5nsdh0 fluid increases, the pressure in the fluid

  Water flows through a pipe. The diameter1 mi bbqwv,0*r of the pipe at point B is larger than at point A. Where is the water v*mw0rb,q 1i bpressure greatest?

  When you blow some air above a paper strip, the paper ris7/ etx o2arev)es. This is because

  A sky diver falls through the air at terq0bcpw6 rjpmyb2 3,:qhad;kbmj0- 8s minal velocity. The force of air resistance oyjkp d2 0ac r6s3b:qjw m 0b,-pbq8m;hn him is

  Two Styrofoam balls, of radii R and 2R, are releasevf*g(o jbik 9k3 2 3adi/ +hu,exb*zard simultaneously from a tall tower. Whichb du zabvo+i*kije/k9fg3a (2r,*3hx will reach the ground first?

  When a small spherical rock of radius r xt yu 5h+08rk3j.da+74uwczm ypxay*falls through water, it experiences a drag force mx7*uyc + hyjuy4zpawd r3a8xt.k+50 $F=arv$, 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 fluid todb 5 ent5: bud/h9ep5hrough a narrow pipe? That is, if you made a 10% change in each of the quantities below, which would cause the greatest change i 5bt5udn /h9oebd :pe5n the flow rate?

  Two horizontal pipes are the same length, but pipe B has twice the + n5.mgdjkqf)+wv,kfdiameter of pipe A. Water undergoes viscous flow in both pipes, subjejgk++5 kvf.qn,mwf)d ct to the same pressure difference across the 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 diameter, but pipe B is twice as long asy 9-q:2 si xl2qzzvo6f3f:2hg hr5fme pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the lengths of the pipes. If thefvf xifgqy5zq l32hr s9 hm e:6z:2-2o flow rate in pipe B is Q, what is the flow rate in pipe A?

  When soup gets cold, it often tastes greasy. Th1 )wd,c0xh4ay x:g;mpfe3s tm is "greasy" taste seems to be associated with oil spreading oux3,0 ;c):m4f gm wyhadp1 sextt all over the surface of the soup, instead of staying in little globules. To us "physikers", this is readily explained in terms of

  When a tube of diameter d is placed in water, the water rises to a height h. Ifv :np/ldnnq7f3j2 xim9*cku 0 the diameter were half as great, how high woul9vupnxm3dn:klf*07 ijqn 2c/ d the water rise?

  Certain insects, such as the water bu8d6y jdi o;dd9g, 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 twice as9ydiddjd 68;o 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 water bug, are sufficiently ligh65kv jj21b n*ibgnt6t be t)e1tweight that they can 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 aj161n b2bgb6t)iv ttek5*e njs long, twice as wide, etc. What is the maximum upward force on the feet of bug B?

  A plastic block of dimensions 2.0 :kvbk;ic6;3*ai kr ub0 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. Wrkik* ;bk63a c: vibu;hat is its density?

  A liquid has a specific gravity of 0.357.zi5prw qx a3e(5+v9ku What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x3zm8uy4 9luek ttbj:. 10.0 cm x 4.00 cm. What is the maximum prkl.u e4tbu3yz8m:j 9tessure it can exert on a horizontal surface?

  A person weighing 900 N is standing on snowshof 2;38zegkf-wx nw a*ges. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarines84xbc 6k+)ggu 5 ay/oj nid*z withstand at a depth of 120.0 m in the cx/jk5u )oggn*i4 b+s 8az6 dyocean?

  A circular window of 30 cm diamet-kyrb qlma:u.j3(o 8k. hihy)er in a submarine can withstand a maximum force ofl-jhu :h)mik..ro k (8b3yqay $5.20 \times 10^{5} \; N$. What is the maximum depth in a lake to which the submarine can go without damaging the window?

  What is the gauge pressure if t.)aw ;eub ;uebhe absolute pressure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below the surfacebre 26 -cu)pkh,3 rnly of sea? (The density of seln- 2)yu k3,6brphecrawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below the surface oez *irdf z1tw-hf;.g :f sea? (The density oiz;z-t* wfg. r:1e fdhf seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machine. The skrszar22 dn-ds+g3jvp4p1 i9mall piston has area2 2rz dsvr-k34j1a i+pp9d ngs $2.0 \; cm^{2}$. If the large piston has area $40 \; cm^{2}$, how much weight can the large piston support?

  In a hydraulic garage lift, the small pist7j-,cy y e yyvloq:k1;wd8kexws /-(fon has a radius of 5.0 cm and the large piston has a radius of 15 cm. What force must be applied on the small piston in order to lift ;y-yxoyyd ew8(c: wk1qs7-kej,v / fla car weighing 20,000 N on the large piston?

  A 13,000 N vehicle is to be 0ef3x 1vuaa 0ulifted by a 25 cm diameter hydraulic piston. What force needs to beeu v 1003axufa applied to a 5.0 cm diameter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter b:vzdvon,+ 41 bnbty 9of 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a load of v9 otbnbvbny4d1z:+, 15,000 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 weiefn9rex p oxb -37)pg3ghs 40 N in air and 30 N in water. What is the buoyant force93)p-x ne 3pfobgxe r7 of the water?

  An object has a volumr+h3036: xnkkhdhbtb e 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 i8gb*sh u. 7fqds supported by a string while submerged in water.hbd8 .7qu*sfg What is the tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gold is 4 js9ex g7tolh 8a1*8onq oe9z$19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel san ga5 -igv+g3d md0k1ubmarine (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 is in wo7ztj-(ql ( au c)7jsair and 6.86 N when it is immersed in water. What is the specific gravity of thwzol)7jq7 (ucs-( atje object?

  A container of water is placed on a scale, and the scale reads 120(ba8q3z; fprx g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread3;a8zbr pfxq( and lowered into the water, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum with a maum:89wu)p he c(fw7cs j,mu o*ss of 1.0 kg and 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 acf viwze0wnid l(mfm1jt+34:p3k / ,snd diameter 2.0 cm will just barely float in water. What idtw i, i 3/wc0lm jf pm+1(snf3evk4z:s its mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0 m wide, b79/lmduf g 6qq;xl (oand 0.50 m high. How m b /oqd;m(9f6g u7lxlqany kilograms of mass can be loaded onto the box before 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 volume beneath the surface of the water. hj(1dry/o:ct8p th r / The weight of the displaced water is 2000 N. What is the weight ofhho(1 :tp/r8tdryj/ c the object?

  A solid object floats in water with three-fourths of its volume beneath the s/ (jk8qed3tgj t66 wvrurface. What is the oe 3 /6 (gkjr6qvdwj8ttbject's density?

  A 200-N object floats with tht;+doy0yb.g wp)h2o-+g :a,mesi6i x1asy fcree-fourths of its volume beneath the surface of the water. a.o y0oh yb: c1f e- gywitx)msp+,gd;a6s2i+What is the buoyant force on the object?

  A polar bear of mass 200 kg stands lw4vxsf2 (w./ ;vaxsion an ice floe 100 cm thick. What is the minimum ar(x 2vx/;si.wal4 wfsv ea of the floe that will just support 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 cm at 2.0 m/s. Find the flowwb 1sscaw. d9 len,63t rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s.a2pma-hpy/x* There is a 2.0 cm diameter re pma*p ha-y2/xstriction in the line. What is the velocity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with a pressurewbu1hat*ny 6q90 me1)pno2 htgn*v d2 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 dwwl3uff7:fr. lru/ 3brinking fountain with 300 kPa, if the fountain is 30.0 m above the pwfl:rf3rwf. u/7u3 blump?

  A hole of radius 1.0 mm occurs ugx: e)bv3a m(/6iv0obl hgk5in the bottom of a water storage tank that holds water at a depth of 15 b03k)gavgol(ex6 i m5b v:uh/ m. At what rate will water flow out of the hole?

  Water flows through a horiz r,:xqh 3hdl jd)1,izqontal 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 m9ue .liio:q0dp7b 9b92mi vmpour 4.0 L of oil through a funnel wmubmd:i97p9blv i 920io mq.eith a neck 15 cm long and 2.0 cm in diameter? Assume the surface 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 decreasedr0hn5s vd0p9t the radius by 10%. By how much would the pressure provided by the heart have to be incre95n0sv0dr t hpased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of water. Tube A has twice the di:1ke6qln b8xk ameter of tube B. If water rises 24 cm in tube A, how high will i6b 8 kkelqn:x1t rise in tube B?

  The surface tension of water is 0.073 N/m. How high will wa,/gcxiqrr89k6 + xsc ffj1;krter rise in a capillary tube of diamec 9g 6x;rfifqsj/18,kr cr+xkter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capillar)k +w0 x)bpgpmy tube with a diamet0) +bpw)mkpxg er of
0.50 mm?

  A narrow tube is placed ge mb4/zmnw,/1rq86e3ts way vertically in a pan of water, and the water rises 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 happeg/ zwmtewbr6431qasny , /8emns to the height of the liquid column in the tube?

  Consider a rectangular frame of length 0.120 m and width 0.600 m.mtb ioef m-7 )l9h f9*ipsn+k with a soap film formed within its confined area. If the surface tension of soapy water is 0.0260 N/m, how much force does the soap film exert on the *mhftl.bmpo9) f7ei9ks i+ n- 0.600 m side?

  An adjustable rectangular frame has length 12 cm andxk 2 leu4be;p(ur3n c/ width 5 cm, and 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 (l nkb4c2;pe 3/xeuurside so that the frame is 12 cm square?