The three common phases of matter+ gkil ,q.a 9cbxgx,4n are

  Density is

  Substance A has a density o il.qpl9dl), lt u3gr2f $3.0 \; g/cm^{3}$ 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 unm .uf)yx4c9 uaz17si hit of pressure?

  Consider three drinkin +r7l/41f gg bujmk;ckg glasses. All three have the same area base, and all three are filled to the same depth with water. Glass A is cylindrigr b41/uc;lgmk k+f7jcal. 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 greatest liquid pressure at the bottom?

  What is the difference betwe,l djp0ii -;hmen the pressures inside and outside a tire called?

  When atmospheric pressure changes, what happens to the absolut-t2b 3g y-js*bw95cdzoud kd* e pressure at the bottom of a po5t -*so udcjgbykwd 2b39*d-zol?

  You are originally 1.0 m be-fzpfzkv4 dkf.d(p9w1ow a ; 8neath the surface of a pool. If you dive to 2.0 m beneath the a-4. 1k;pdzd8 k9 vffzw(fwp osurface, what happens to the absolute pressure on you?

State Pascal's principle.qg3yzq(d/ )zv zpgc48

State Archimedes' principlesmf hh49..*f+r /gojvmbfsl g : *as:m.

  $50 \; cm^{3}$ 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 into water of consta h-(i;p jwkb8tnt density, what happens to the buoyhbt; 8pjwki( -ant force on it?

  Salt water has greater density than fresh water. A boat fuy- b1: tl egy6bfn.3gloats in both fresh water and in salt water. Where is the buoyant force greater onul 6b 1nye-y.g3 :ftgb the boat?

  Salt water is more de)/-(i pl xj1kzbvyh 7y0:mzu3jlg(od nse than fresh water. A ship floats in both fresh water and salt water. Compared to the fresh water, the volume of water displaced in th ly(g(zox3bm/h)k:v u- yz17 0idp ljje salt water is

  A steel ball sinks in water but floats in a pool of mercur 6ay)2ucltpm*y. Where is the buoyant forcc ) tm*a26yuple on the ball greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-mu) * u+ 4eblko* 6m utdic.(ff2b1vtbkg piece of lead. Which has the grdmmb16*u*btf ul i24fub)vokce+. (teater buoyant force on it?

  A piece of iron rests on top of a piece of wood floati (e1lwynp/zi1-x 00 lypr/jc4xed v- dng in a bathtub. If the iron isx0r-yy pdcj-1zlnwd0 /ep(l/x1i4 ve removed from the wood, what happens to the water level in the tub?

  A piece of wood is floating inwp.h h3n6q qp9upj nw*s9y0 o) a bathtub. A second piece of wood sits on top of th*9)n p wsqwyoqp9p3 6j.hhnu0e 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. Tbg*+in; 2zv-an/ke v qhe diameter of the pipe at point B is larger than at point A. Where is the speed of the water great+n znkv ;*gvbqei-2a /er?

  An ideal fluid flows at 12 m/s in a29 dk; yhur65o e uf7os*pi9bx horizontal pipe. If the pipe widens to twice its or 5p9y6riou* ;fko29ud sh ex7biginal radius, what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narrows touf:xce0 r-jj ipw2;j 6 half itiejjwu 0rx;-:pjc 2f6s original radius, what is the flow speed in the narrower section?

State Bernoulli's priz.qbullukcq9 b+z0l+oy 9x; 8 nciple.

  Which one of the fol tn/m8w3(v9hs i3sfg xlowing is associated with the law of conservation of energy in fluixwf 83(g3ns /v9hitsmds?

  As the speed of a moving fluid increases, tyw q t5y wz(;wy+axr43he pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at poinkc3kh 6bvr5xk-o (wae (7 vra9t B is larger than at point A. Where is the water pressure greatb(( a vkx9r7k-wa vr 63e5cohkest?

  When you blow some air above a paper strip, the paper tuh o2v8y2,t4kqdjmd s)/o9j rises. This is because

  A sky diver falls through the air at terminal veloc6 sip(6ubf( ,tc8s- mnpgtxw i/f4 g,nity. The force of air resistance on him ,t6n / xtb(4pwsc8igui,fsgm(p -n f6is

  Two Styrofoam balls, of radii R and 2R, are released simultaneously fro;t iee g/jxg;.m a tall tower. Which will reach the groun t.gji/e;;egxd first?

  When a small spherical rock of radius r falls through water,z)nkht u9ay9*3nvup8 it experiences a drag forckhtuz3u )*pn8ay9 v9 ne $F=arv$, 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 through a zjd5 tr,d.dpq/hdncu:;/ yo+ +6hjih narrow pipe? That is, if you made a 10% change in each of the quantities below, which would cause the greatest change in the flow ratyhd ci++dqrod5d/ j /.zp,n;tu h:h6je?

  Two horizontal pipes aret enq,fo++c) l6jvm)a the same length, but pipe B has twice the diameter of pipe A. Water undergoes viscous flow in bot)jnc +l+a, )qteo6m vfh pipes, subject 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 ther0 l* npz+yplnq)a,5*)gv b yo same diameter, 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 the pipes. If the flow rate in pipe B)0 a vnrlybpp * 5g+l,ynz)*oq is Q, what is the flow rate in pipe A?

  When soup gets cold, it often tast jqd bh0z9j4 h/q,z*wio*i se2es greasy. This "greasy" taste seems to be associated with oil spreading out all over the surface of the soup, instead of staying in little globules. To us "physikers", this is readily explained in terms owhjo9 z jq/0,eqzbidsh2 4**if

  When a tube of diameter d is placednqo44z /h2;+ cgparp d kx;cx1 in water, the water rises to a height h. If the diameter were half as great, how hig 44kpda ;cpr12o+q;g xzxc/nhh would the water rise?

  Certain insects, such as the water bug, are sufficiently lightweight that they ck br8p9pp4n 7dan run on top of water without breaking the surface tension. Water bug A has weight W. Water bug B is twice 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 4pk9p8b d7pnr B?

  Certain insects, such as the water bug, are sufficient sn8 qp e9.fjhqsw,3s vl9+hp(ly lightweight 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 as long, twe,( jqq l3s9h+ f8hsp 9vwnsp.ice as wide, etc. What is the maximum upward force on the feet of bug B?

  A plastic block of dimensions 2.00occew0 r9:j0rqfpt ,t0d; t5tcgt70i cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. What is i,0 fogctt t09;:tjqcdr tcwp 050re7its density?

  A liquid has a specific gravity of 0.357. / ,bw-oh lzti 6hrne ecs+p929 What is its density?

  A brick weighs 50.0 N, and measures 3m;k+ ,*er gzh48 .taje xyte6lr9m *bm0.0 cm x 10.0 cm x 4.00 cm. What is the maximum pressure it can. 4 6 ;* erh+yjkma *xzttr8gmlm9eeb, exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each snowshy t.rv7tsl1vn *5gcy,q2cv s3 oe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) mustl i q8lu.f,z5y a submarine withstand at a depth of 120.0 m in u zl,yfi8.ql5the ocean?

  A circular window of 30 + 5ktio6cod,y2-ent cv4tz2 uku() yqcm diameter in a submarine can withstand a maximum force o,yi-uok2e +zocv dt2(tc5k 64tn uyq)f $5.20 \times 10^{5} \; N$. What is the maximum depth in a lake to which the submarine can go without damaging the window?

  What is the gauge pressure if the absolute ec+++hydm4; nal m )j* n:ttmspressure is 300 kPa?

  What is the gauge pressureeys(/6 lqi ao5 at a location 15.0 m below the surface of sea? (The density of seawater soi/5 6l qyae(is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressurz 3r7x+l(jbqrxu/yi/e at a location 15.0 m below the surface of sea? (The density of seb+7x qxlyju3r /(ri/zawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machineht5yen7vb2 sawpy,:( . The small piston has arvbpen7t:2h(w5 asy,yea $2.0 \; cm^{2}$. If the large piston has area $40 \; cm^{2}$, how much weight can the large piston support?

  In a hydraulic garages wxulalxf4nkf );3 6w5guf;ym+2o: d lift, the small piston 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 a car weighing 20,)2fnkalxsm y ff:4owwgu+3 6 x ld;;5u000 N on the large piston?

  A 13,000 N vehicle is to be l)abdf-w b.(( (, nxnc wlyhn*sifted by a 25 cm diameter hydraulic piston. What force needs to be applied to axd)((h.fn(*n,sy- walcb wb n 5.0 cm diameter piston to accomplish this?

  The small piston of a hydraulic lift has a didbi 6 zsrc6z924o9 zcxameter of 8.0 cm, and its large piston has a diameter of 40 cm. The lift raidix 64 roc9 6c2zb9szzses a load of 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 weighs 40 N in air and 30 N in water. What is ji)b7i1jyj u-v 8(wlzx 2rz6rthe buoyant force of tjbz8iji j-27 y(uzvrxw) l1r6 he water?

  An object has a volume ya4vcke( /xhe 6vuf 8)jpen mz)o9q) 7of $4.0 \; m^{3}$ 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 submex.eaq.2.qt9b;gqrm o rged in water. What is the tension in the string? (The tx mbr;.og eq9..aq q2specific gravity of iron is 7.86.)

  If the density of go h9*9ru)0 eqz d(gzfkx*vm3 jdld is $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steen78 g7 wdjk*sql submarine (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 0 m3f/ bc*vcrkr43cupk f.1xq14 xoocis in air and 6.86 N when it is immersed in water. What is the specific.occvc1x4q01fk 433x km*uo/rrcb fp gravity of the object?

  A container of water is placed on a scale, and the scale reads 120 g. N+ 28 /v wkl2hvtex7yxqism p*+ow a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread al 2+w78s +qpt* mhk2/ixvevx ynd lowered into the water, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum wna *kgo8+ f02f ;qk8-hwy v ,fps;ocmdith a mass 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 c-ena ;t/tmtl9 m and diameter 2.0 cm will just barely float in water. Wenltat/;mt- 9hat is its mass?

  A rectangular box of negligible mass measures 5.0 m v:9jebjpem5ju -n 09glong, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loaded onto the box before itn9euv gj b:e0m-95 jjp 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 surfac3*w /y9j q2to 6qqhhag*db+ lve of the water. The weight of the displaced water is 2000 N. What is o/h2l q9gw*jqdyh+ a*q3vb 6tthe weight of the object?

  A solid object floats in water with three-fourths of its volume b 8ic7toqybx x1+8y b8beneath the surface. What is tiob+cxyb bx8y187q t8he object's density?

  A 200-N object floats with three-fourths of its volume beneath the surfa27+ilibr ..pq) w zxdoce of the water. What is the bliqzd2ir.op b7 w).+x uoyant force on the object?

  A polar bear of massy+6l z -gvx9ocx0df aw wl2ps rb)6q4, 200 kg stands on an ice floe 100 cm thick. What is the minimum area of the floe that will just support the bear in saltwater of specific gravity 1.03? The specific gravity of ice is 0.98.rx ql xlgz2v db-, yosw6+wa6f0)p4c9

  Liquid flows through a pipe of diameter 3.0 cm at 2.0 m/s. Findwk 7l mdga8.eq (9ohb* the flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. There is ahav 9hu9hru(0 2.0 cm diameter restriction in the line. What 0ha (r9vhhuu9is the velocity in this restriction?

  Water flows at 12 m/s in *xe mm32v:whsy )i1(imjo bt 4a horizontal 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 d:hmeyyrx3a6g-k9n; trinking fountain with 300 kPa, if the fountain is 30.0 m a k am9y:x-tyrhn3 ;eg6bove the pump?

  A hole of radius 1.0 m)j* , w:okrs :xt lqic*i-z;)l x9npldm occurs in the bottom of a water storage tank that holds water at a depth of 15 m. At what rate will water flow out of the z 9*s ixw-po:)lk ln*);:x lr,cj qidthole?

  Water flows through a horizontal pid29.trp x rnd/pe 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 lol, vva ms+cmii8v,t,/ ng would it take to pour 4.0 L of oil through a funnel with 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 funne ,,ml8 s+itm, cvaiv/vl.

  Suppose that the build-up of fatty tissue on the wall orv 2txw t5h7nkhvtz09 87df+h f an artery decreased the radius by 10%. By how much would the pressure provided by the heart have to be increased to m+t vh 527tvxfh rt9hknw8d07zaintain a constant blood flow?

  Two narrow tubes are placed in a pan of water. Tube A hash/ x6y+zetca uf1xg7, twice the diameter of tube B. If water ris/7te x+z6fugcxy,h a 1es 24 cm in tube A, how high will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high wmquj5 6p*m.jxo; /9 h8ncgllg)hndz3ill water rise in a capillary tube of diameter 1.2 mln/3cm q*5 m8;gpxgjh .j9 nlduz)6hom?

  232

  To what height would water at 0 degree Ccszm,jrlrxfpol c7m07 8 hroj h c,j6s;, 5u,-elsius rise in a glass capillary tube with a diameljr8u0x oj, r ls- prcshf5jo7,, cmz67hc,m; ter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and the water :aa ()uun+i:v uh; udjrises in the tube to 4.0 cm above the level of the pan. The surface tension in the liquid is lowered :uja dinu+hv(a:uu;) to one-half its original value by the addition of some soap. What happens to the height of the liquid column in the tube?

  Consider a rectangular frame of length 0.;gyq 9qpi(;zz120 m and width 0.600 m with a soap film formed within its confined area. If the surface tension of soapy wiyqg;zp(q;z 9 ater 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 *.1hwt1on z)ku qg *od5 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 i*z*out1hd wng1. qok) s required to move the adjustable long side so that the frame is 12 cm square?