The three common phases of matte.a 1ye/bnkvz7p ;kp9lr are

  Density is

  Substance A has a density bcjn68 )(sy.rg twfi3s,st/b dm.8 gjof $3.0 \; g/cm^{3}$ 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*x be)ek+38d vu/ jrij a unit of pressure?

  Consider three drinking glasses. All three have the same area base, and a/jv xd4jqb 9f4bj52 ugll three adj95b/ x 4ujvj b24fqgre 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 greatest liquid pressure at the bottom?

  What is the difference between the pressures inside and outside a tire calledbd7(zm (k ;*8wswdqmz ?

  When atmospheric pressure changes, what happens to the absolute pressure as qecvz 5x/3749aoy tst the bottom of a p3 yt asoq /evc49sx75zool?

  You are originally 1.0 m beneath the surface of a pool. If you divach*v (kqj.e 0sg.fv4e to 2.0 m beneath the surface, what happens to the absolute pressure on *qcvahk( fe4jg..sv 0you?

State Pascal's principlb0p. c sbjpof.k:x )g*e.

State Archimedes' principle.q r3tv t:n7q)g4ij;tw9z,quzrf 77hv

  $50 \; cm^{3}$ 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 constant de0q6g b9 v2gbjr-(pw(c j ey/xcnsity, what happens to the buoyant forccew2j60qpv c9bgj-bgr ( x y/(e on it?

  Salt water has greaterfcla,( nlql 0oi n p,4vhe.6+t density than fresh water. A boat floats in both fresh water and in salt water. Where is the buoyant force ( te0l f4oi.alv lc,6 +nq,nhpgreater on the boat?

  Salt water is more dense than fresh water. js 7(jfx3f: wu A ship floats in both fresh water and salt water. Compared to the fresh wa:u(jfjf 7sw3 xter, the volume of water displaced in the salt water is

  A steel ball sinks in water but floats in agdf x0k whtz5a9n/)jip ,b2s 3 pool of mercury. Where is the buoyant force on the ball greatfbp ixh 02w)sk3g,59/j ztnad er?

  A 10-kg piece of aluminum sits at the bottom of a lake, t+up*p b0r(yzright next to a 10-kg piece of lead. Whichptbyz0p r(u +* has the greater buoyant force on it?

  A piece of iron rests on top of a piec5jm2avu 5gqi4a/cb7 ye of wood floating in a bathtub. If the iron is removed from thm5cbga5viyu/ 72jaq4 e wood, what happens to the water level in the tub?

  A piece of wood is floating in a9gw qa ;j9q 9c:jrnei2 bathtub. A second piece of wood sits on top of the first piece, 9jra9ei;nj9:qg2 qwcand 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. Tt d 0ac 1mde-7ux;sq+rhe diameter of the pipe at point B is larger than at point A. Where is the +d10xm cu ed;-rqst7aspeed of the water greater?

  An ideal fluid flows at 12 8ychf 6d6ubto8i em1pzt)n0/ m/s in a horizontal pipe. If the pipe widens to twice its original radius, what is the flow speed in the wider section?/zbyn)8mu 8 0t6if 1 coteph6d

  An ideal fluid flows at 12 m/s in+rsy rhhf erp,9 c99z8v +e4zi a horizontal pipe. If the pipe narrows to half its y+zf+,i e9ch8 ev 4phsrz r9r9original radius, what is the flow speed in the narrower section?

State Bernoulli's principdh/ 2-op,d5tha y6hs ule.

  Which one of the following is associated with the law of conservat0qdg6wdmj:.kk m y r4/ion of energy dwmk:md6g. k rjq0/4yin fluids?

  As the speed of a moving fluid increa 60avh cx./ 1vi8vmvoqses, the pressure in the fluid

  Water flows through a pipe. 7uz yyz bzgk 3154k7zdThe diameter of the pipe at point B is larger than at point A. Where is the water pr3z75 g74ykkzz d1ubz yessure greatest?

  When you blow some air above a pape8,n j,pazlkui : b+a/br strip, the paper rises. This is because

  A sky diver falls through the air at terminal velocity. The force of air p600yj54pl+, knhs3opmc;zm vm1 lg5vxoh, yresistp5v4ph6 zmv mjlslop moyyn,53 x 1c0,k0+h;gance on him is

  Two Styrofoam balls, of radi9g5;q9zl ogo gi R and 2R, are released simultaneously from a tall tower. q;olo5g 9 gg9zWhich will reach the ground first?

  When a small spherical rock of radius r falls th6sg ey;b,xtx (j(a*c trough water, it experiences a drt x;bx ay(t*6gc (sej,ag force $F=arv$, 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 narrow pipe? Tf ii(kkl 8ug13l+, ;rlnzc 3axeo;ry)hat is, if you made a 10% change in each of the quantities below, whicig1n,lk8iacz(ly;u 3f k+;3 rox e)rlh would cause the greatest change in the flow rate?

  Two horizontal pipes are the sam( ;f jso2l.t+d(wymq2wy hwm ,e length, but pipe B has twice the diameter of pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the l(jm2mwo;.(sqfwhwd,l2 +y y tengths 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 )r05ldk9yz aelong as pipe A. Water undergoes viscous flow in bot0l9yr 5aze)kdh pipes, subject to the same pressure difference across the lengths of the 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 greasy. This "greasy" tas.c29kgpvmsh2i4k 8ts te seems to be associated with oil spreading out 9 hk4 .8icsvpmgsk22 tall 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 ( kplhcj3d2 ds0/u+qwis placed in water, the water rises to a height h. If the diameter were half as great, how high would the ddj3u +c0p/lk2q h(swwater rise?

  Certain insects, such as the water pwz hxw/ 0iuves 2l+r.ba:pzpz *9:j6bug, are sufficiently lightweight that they can run on top of water without brbxzp:el j pw9h6 auwizr+*02/:vzsp.eaking 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 B?

  Certain insects, such as the water bugg n8/y(b ub ms68pag-s, are sufficiently lightweight that they can run on top of water without break n6b 8g8/u(mb-p gsasying 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 dimensions5.m)npjt yr+jf 5ia2 m 2.00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. What is its y5a5 mp jf m.t2)+njridensity?

  A liquid has a specific gravity of 0.357. What is its densilyhh+op f 3g 46r q6h3 u+0kb6zqxglw,ty?

  A brick weighs 50.0 N, and measu/4 djj(cl,bperes 30.0 cm x 10.0 cm x 4.00 cm. What is the maximum pressure( elb/,pjcd 4j it can exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each snowshoe has area hs zn-ano6z25*lixaa- lsu : 4$2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absol rfz6 6v.;1q(0sixwo xcgx,b/lf 8pj xute) must a submarine withstand at a depth of 120.0 m in the 6 rsfbi/ 8c,0p6x q(gv o1j.wxf;zxlxocean?

  A circular window of 30 cm diameter in a submarine can withstand a maxid/ga t hx6 0pa;s:;tjdmum force ddp/ax h06;sjt ga:;t 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 pressu 05 aiys7p2 ks(ar,vkdre if the absolute pressure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below the e m;a1rnjix;x t-sf+ oq:-ma u+.5 /s/b dvqjxsurface of sea? (The dx f +b-rt/qdsexi.m+/a ; -s5qnj;1axmu :vojensity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m belp jzn )sg)g 5z*r5krc 6)bg4yeow the surface of sea? (The density of5g )sjc)zz6b ngrp5 4gy )kre* seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston ndb qs+ f,r16ymgq2x2kx 3u1k of a hydraulic machine. The small piston hasq6y2+xkq2d,n3 bf1m rgxku1 s 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 sman+- as hyco3fd9r 7j1 0enepj4ll 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 ordncdjh y+ea 4e3 j sfopr79n01-er 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 piston. Whw i8 )4szmlmp9at force needs to be applied to a 5.0 cm diameter piston to accomplish this?p 4m8smzl9)iw

  The small piston of a hydraulic lift has a diameter of 8.0 cm, and ii1y-0jcd)p bt ts large piston has a diameter of 40 c1t dcb0 p)yi-jm. The lift raises 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 airn3d b9)wzr+vs and 30 N in water. What is the buoyant forcerwsd n+ zbv)39 of the water?

  An object has a volume vze1*e q c q-ssf;,yiz(+ge5jof $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is supporsr- 8t.-kj3niip t zw/ted by a string while submerged in water. What is the tension in the string? (The specific gravip tt8ji-rws3.-n/i kzty of iron is 7.86.)

  If the density of goldvea(,p1 j:l wi 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 steel submarine (density ybhp6 3apv +a,ofdi15= $7.8 \times 10^3 \; kg/m^{3}$) 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 air and 6.86 N when it is im9wf hj x/z*7as1ya;;noam hv 9mersed in water. What is the spe1j hya;aw*h7 f9s;mv/nx a 9ozcific gravity of the object?

  A container of water is placed on a scale, and the scale reads 120 g. Now a 7vlc; ow4h8fw 20-g piece of c8ol4wh 7fcvw;opper (specific gravity = 8.9) is suspended from a thread and lowered into the water, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum with a mass of 1.bceoldt* ro 3 nf 2i ce+,d,i:j90v1kj0 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 ofhge7wf xnck1g-1x zh 5/r1k9 z length 12 cm and diameter 2.0 cm will just barely float in water. What is its1g5khx -97e/k1rnch1zf xgz w mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0 m wide, and:jzdttp1 c34i 0.50 m high. How many kilograms of mass: t1z3jdtip4c 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 os 5siwpmck67 lq .ef8/f the water. The weight of the dp.sm5/k7 isqe c6l8w fisplaced water is 2000 N. What is the weight of the object?

  A solid object floats aq).uwmebcpo -,;+ mxin water with three-fourths of its volume beneath the surface. What is the object's dmqu e)xo p.-cb;+ mw,aensity?

  A 200-N object floats with three-fourths of its volume beneath the surfaglm/xi; bl1p;1b1( ultb ao n5ce of the water. What is the b;5ux bbp1g1(tba ill;1l /m nouoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 10b-am x.*s mfn+s;bnj ,0 cm thick. What is the minimum area of the floe that wb*xnm .fa -,;jsns+mb ill 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 b*03(l k. ovfmykps e,y- oly9diameter 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. There is a 2.0 c nki)s r4;dco3jsxx 43m diameter restriction in thsxi;d)onr43kc4j xs 3e line. What is the velocity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with a pressure o34 lh8s)wlesd f $3.0 \times 10^4 \; N/m^2$. 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 toibwg )-9scbo.w0 yd* h supply a drinking fountain with 300 kPa, if the fou 9-bih)b sgo0dy*ww. cntain is 30.0 m above the pump?

  A hole of radius 1.0 mm occursq 94v*f6a r83vfxper-7wajd o in the bottom of a water storage tank that holds water at a depth of 15 m. At what rate will 4 r86aa 9vdoq3 ex rf*-wj7pvfwater flow out of the hole?

  Water flows through a horizontal pipe of cross-sectional 4*kqw 2ptihjhx zoti3 8/.-ql 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 v)j*5;cpq e f0y1hfld3 xfcm9c iscosity of 0.20 Pa-s. How long would it take to pour 4.0 L of oil tcj*0 9clhqc f efd; mf13px)5yhrough 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 funnel.

  Suppose that the build-up of fatty tissue on the peb-*q 6a *asuwall of an artery decreased the radius by 10%. By how much would the pressure provided by the heart have to be increased to maintain a constant blo6-* qa*uaspb eod flow?

  Two narrow tubes are placed in a pan of water. Tube A has twice the ,/ ge9ebz g5lcdiameter of tube B. If water rises 24 cm in tube A, how high will it rise in tubeeec l5 /z,9bgg B?

  The surface tension of water is 0.073 N/m. How high will water4;b9zl a24 pjry/bvxdb mjoac9h5x99 rise in a capillary tube of dij;l9jaoxapz5h d bbbr9y4 /vm49c x29ameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capim5 m;s9unm3 k-pydz a4zzp 6 /ju0w.ydllary tube wi 9myy.auums340wn ; jkzdp/d5zm6 z-p th a diameter of
0.50 mm?

  A narrow tube is place tk9p*g,9*p rrc*; uusady;ned 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 happens to the 9 usua,;g ed n*rk*y;tp9rp *cheight of the liquid column in the tube?

  Consider a rectangular frame of length 0.120 m and width 0.600 m with a soap fif/h;ehz.g;+8jpn/o 2vd4 exen+ajt a lm formed withinnnj2 x8ot./e+;ep;gj h 4he+aaz/ fdv 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 0.600 m side?

  An adjustable rectangular frame has length 12 cm and width 5 cm, andpe;rztb p ,+2x 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 requ2zrxt +ebp;,p ired to move the adjustable long side so that the frame is 12 cm square?