The three common phases of matter are,uk/g:c ls(-gg wd8rc

  Density is

  Substance A has a density o je/0dqkq(ro /f $3.0 \; g/cm^{3}$ 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 of5ofb p(-jtt)e)/cfdm kej0 1k pressure?

  Consider three drinking glasses. All thdm+xw w(fog 1lphho) 8s/di9 2ree 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 greatxid1m/ ol+ps8 fd2w h9gh) o(west liquid pressure at the bottom?

  What is the difference between the pressures inside and outside a .w r lx;5 tl 6nteg,)/dq6m-kp(dcwrbtire called?

  When atmospheric pressure changes, 19-ttvr72 k0g 6esgq(ukp j;oon ys 6bwhat happens to the absolute pressure at the -;ks 2esk9 tjy61 o6unpgbtv qg0r7o (bottom of a pool?

  You are originally 1.0 m beneath the surface 1tf fad .2tkn+of a pool. If you dive to 2.0 m beneath the surface, wha t2f+ kdfnt.1at happens to the absolute pressure on you?

State Pascal's princd)zb g, r-9j 4sp9vxa;lcvy +kiple.

State Archimedes' princ.kwb-ry+tcl2sgf *:s7 1j pdfiple.

  $50 \; cm^{3}$ 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,2y lxe4pq.x vewg bupm1zwn*0 6-shk g(mg4( constant density, what happens to the buoyant force on iq4(pv0 e1b*6-.mkgwh2l( mu ggyx zenwxp4s,t?

  Salt water has greater density tha90rhgr9)ye am a8uk 0mn fresh water. A boat floats in both fresh water anrkyrm ge) u9 h00ama98d in salt water. Where is the buoyant force greater on the boat?

  Salt water is more dense than fresh water. -j* *rq qgtkizt/c1+w A ship floats in both fresh water and salt water. Compared to the fresh water, the volcj +1igkqw rzt*tq-*/ume of water displaced in the salt water is

  A steel ball sinks in water but floats inc7-q-./f ue hvhjp1ax75kbwc a pool of mercury. Where is the buoyant forcf-w5.e/-kacx u7h7qv 1hb jp ce on the ball greater?

  A 10-kg piece of aluminum sits at the bhl kxj1k),9z cop-7vea tz,j -ottom of a lake, right next to a 10-kg piece of lead. Wh-tv1,xhckaeo)j l97kz, -j pzich has the greater buoyant force on it?

  A piece of iron rests on top of a piece of dg5m:yoidzw *(c w /s.wood floating in a bathtub. If the iron is removed fromyiwgs5c :m dow d*./(z the wood, what happens to the water level in the tub?

  A piece of wood is floatingd,e9uc,c4cg/), st xwetxd e8v8o ev0 in a bathtub. A second piece of wood sits on top of the first piece, and does not touch the water. If the t vt,cgecc4d9 8vte/d,wosue)x8 ,0e xop piece is taken off and placed in the water, what happens to the water level in the tub?

  Water flows through a ptl28o ha20 7tcykc0t)zb)nr; j7g,exx5 ihb yipe. The diameter of the pipe at point B is larger than at point A. Whctik8t0o y 0nby b,lr;)7h2)2gzh57 jxecta xere is the speed of the water greater?

  An ideal fluid flows at 12 mn85hlg kg, b4e/s in a horizontal pipe. If the pipe widens to twice its 5 g,n4elhkg8boriginal radius, what is the flow speed in the wider section?

  An ideal fluid flows at 12 ol4/4.wz.evsaf b s:s m/s in a horizontal pipe. If the pipe narrows to half its original radius, what is the flowb:. wslvs z4e/a .f4os speed in the narrower section?

State Bernoulli's principle.w 5cqjz47gj t 6yatw8a51 fe6g

  Which one of the following is associate.6 fc t,ld0gcyts4 ku-yp:stei85*jgd with the law of conservation of energy in fluid*ij:ttg 4y6 ,8dc.-0eksl5t psgcy f us?

  As the speed of a moving fluid increases, the pressure in4ui5 3 k grn2:jdbm;fg the fluid

  Water flows through a pta7)47g8kagw kwzc mc7.y.y7r c8l mxipe. The diameter of the pipe at point B is larger than at point A. Where is the water pressure greatxt84 c .aykk.grwl ) ycazm7g8777 cwmest?

  When you blow some air above a paper strf:fegu 9jyii-5dm ; q,1 c2rzwpztn*.k v)e+kip, the paper rises. This is because

  A sky diver falls through the air at terminaka z* uy-g*vatx2a/-fl velocity. The force of air resistance on- u-kzax aga/vf *2y*t him is

  Two Styrofoam balls, of radii R and 2R, are released simultaneously from a tall6 r5m,lqd 4jhmfou/c 9 tower. Which will fch 59md6o4r / jm,lqureach the ground first?

  When a small spherical rock of radius r falls through water, i-xdtp:. 8an snt experiences a dra xnat8np .-:sdg 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)xfmp r*- 7zmr through a narrow pipe? That is, if you made a 10% change in each of the quantities below, which would cause tx7mrmzrf)* -p he greatest change in the flow rate?

  Two horizontal pipesz5pw1,hs)xolldd e* uhd 0 w3; are the same length, but pipe B has twice the diameter of pipe A. Water undergoes viscous flow in both pipes, subject to hdw0sldhlup ;3e* o1z dx, )5wthe 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 a)d53.krpq 9 ojxe4 vnfs+js45/jd cnlong as pipe A. Water undergoe)kesjj5 +jvd/or s a9.dnf3xqc p45 n4s viscous flow in both 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" taste seems 05+o lsqige0)1v *beyt xlp)ave k9;h to be associated wit vhbky 9t5 x)p*a0elve)s+ 1ieo0;lq gh 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 of

  When a tube of diameter d is placed in water, the cde6 ) trmd5tdhgm -m)( 5ua.cwater rises to a height h. If the diameter were half as great, how high would the w5t5 r.c-udm hd mgetc)a) (m6dater rise?

  Certain insects, such as the water bug, are sufficiently li yq1:hk)q 8i7yvhuxj4+sa u/+ btm,mjghtweight that they can 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 :y+/,s ) 8u vt7 xjbha+uhqjky 4qmm1iweight of bug B?

  Certain insects, such as the water bug, arec;hp)brgp8zj (,xekc o7 pc 0* sufficiently 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 dim ;e8cp)kjroghx pc (7z*bc,p0ension. 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 dimensions 2.00 cm x 3.00 cm x 4.00 cmjcb asd6x*+h/ rkq.oeqz8 **h has a mass of 30.0 g. e*j/ak d * q h.bhxs6q+c*8zroWhat is its density?

  A liquid has a specifick /f:;4 iwfclw gravity of 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm. W0g h(.w 6smuruhat is the maximum pressure mwu 6u h(rs0.git can exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each snowshoe has3oa7 +k yid-hz9b:znzm8t /x d 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 m in9v ptmr1ouq/ 36xbyul 3-o28asiv1 x f the-3s u6yu1x/lo a m ft2r8pivo93xbv q1 ocean?

  A circular window of 30 cm diameter in a submarine can 66eyq+sp d*c+ feei5 rwithstand a maximum forcece+i d 6r*+fq6se py5e 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 the absolute pressure -hxdt 6)ky z +qv:rgl:is 300 kPa?

  What is the gauge pressure at a location 15.0 m bqy 7oua-0m ;frelow the surface of sea? (The density of s-a;yfqr 0o7u meawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location xn 5)xuhdt 45o4cf1wb15.0 m below the surface of sea? (The densit )d5bnxf4cuot 4 x1hw5y of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic ,qm(qravb-v6w d/ g8)h lk-6omt6 mhimachine. The small piston has are8 ),db/ vr l--6htaq mwiq6vm gkom(h6a $2.0 \; cm^{2}$. 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 cm and the la)8h1k dvhu. ibrge piston has a radius of 15 cm. What force must be applied on the small piston in order to lift a car weighing 20,000 N on the larh 8vibd)k h1.uge piston?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter hydrauliclnzq7/2-w.tyzxiy4 v -0rc3qvw4l vcis5 w 1g piston. What force needs to be applied to a 5.0 cm diameter pistonw5i/r2z1q74vlwzvvwq-s0 -y gx . 4c 3ntyci l to accomplish this?

  The small piston of a hydraulic lifhto.(:ygi mw2iv )ft4 u99clrt has a diameter of 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a load of 15,00 9 cl2.woug9:ft ir)v(4 iyhmt0 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 wm*cg muh;bshmnz16 )zd*1b/ in water. What is the buoyant force of 1 s)dnbz*ch m b;*h61mmz/uwgthe water?

  An object has a volume of 4r pp m64 ;:i kzb. 7ehzip+rmsysqq;+$4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iolpqv w: 1)z/ fbeczy6pr)-1qron is supported by a string while submerged in water. p:fp)v) yb1o- q zq z/e1lr6wc What is the tension in the string? (The specific gravity of iron is 7.86.)

  If the density of goldmxpdd.s 3e,z 9 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 submj7foe bc: x;ja+qg,u:w)6ni sarine (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 ij0tih03i yye2s in air and 6.86 N when it is immersed in water. What is the spi3 0 yethy20jiecific gravity of the object?

  A container of water rp6 cnn3xuosn 6, 5bbobse659 is placed on a scale, and the scale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and lowered into the water, noupnbx6s b6no5s59r ,6n o b3cet touching
the bottom of the container. What will the scale now read?

  A piece of aluminum with a mass of 1.0 kg and22kr*gqyyx. :g ol yz: 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 diameter dn17p ptu6o d:2.0 cm will just barely float in water. p p7n6 od1d:ut What is its mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0 m wide, an)cht2c1gk*m 4k yc(jtd 0.50 m high. How many kilok h2*jc(c)4tgy1tm ckgrams 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 thet flqx kp2s/k.32rb /t water. The weight of the displaced water is 2000 N. What is the weight 3qr/.ttpf/22kxl kbsof the object?

  A solid object floats in water with three-fourthb x *+86,iyy+hhx2bv gmuzjhn4h t)m3s of its volume beneath the surface. What is the object's denst ) xbnm 28+hym+uj xhbvi*4 36yg,hhzity?

  A 200-N object floats with three-fourths of its volume beneath the surfa)r1t q.izguhnj7*u -ace of the water. What i7ut. zq 1ginauh )-j*rs the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. Whah5s s2gff(tc-djo(9oks1 a 4 h0mlh/v t 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 i(( 0tsgfm9f51 odhhk2-shvo/4 jalsc s 0.98.

  Liquid flows through a pipe of diameter 3.0 cm at 2.0 m/s. Find the flow raty3u4r,q/ imkzmz z :39 jlaz.pe.

  Liquid flows through a 4.0 cm diameter piqvq8f9g8is a150qo -ir: itzope at 1.0 m/s. There is a 2.0 cm diameter restriction in the line. What i8 :io -aqqo15v8rfqgist z 90is the velocity in this restriction?

  Water flows at 12 m/s in a horizoh9c-r)/w.o c d.-at:bhpxkr)r hzj2 a ntal 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 f5;f dvrw cxqs *9w)zj(or a pump to supply a drinking fountain with 300 kPa, if the fountain is 30.0 m above ;)q9wcxws(5zdf rj* v the pump?

  A hole of radius 1.0 mm occurs in the bottom of a water storg,t(iw6yblsk(/xbl*( py( x 9 ha6dj ra13qxqage tank that holds water at a depth of 15 m. At ibqags(6l6(jy, b/ x1w( rt9 yk (*paxlxh3dq what rate will water flow out of the hole?

  Water flows through a horic w b(mo+s1ko9zontal 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 viscosit(c;m1,jpdc g s7+4 clayroo9ey of 0.20 Pa-s. How long 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 surfaceescycm4co( rjl+;1 d9po7g a, 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 o,zl * ylc2g8xk7 5mu9n; db a7ldja2akf fatty tissue on the wall of an artery decreased the radius by 10%. By how much would the pressure provided by the heart have to be increased to mainta ,a2cxjd k9kumngdz5* a ay7;2 lll7b8in a constant blood flow?

  Two narrow tubes are placed in a pan ofk/brn8 u+1p nkxh-+ok water. Tube A has twice the diameter of tube B. If uxk/hr-po+n+1 kk8n bwater rises 24 cm in tube A, how high will it rise in tube B?

  The surface tension of water is nhtr,lxsy6tnnb 6;3 fe p 9il(l8u.p20.073 N/m. How high will water rise in a capillary tube of diam66l89lr.lyi hn ,fpu( p x3es bn;tnt2eter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capillary tube kznu( *atx upo x9t1 .+gyy:r4witkr tpu*:+( yyoa.nt94uzx1 xgh a diameter of
0.50 mm?

  A narrow tube is placed vertically in a pan osaa t7xc.uy ch09 -nl-f 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 height of the liquid column in the tube?u-t0c-n ahy9 cx7a s.l

  Consider a rectangular frame of lengthcnjq*v8h: k.e/an 3pn q.q +/8avvqrz 0.120 m and width 0.600 m 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 exertn+jpeac. v8:qn3qh/v 8 nvr*z/qkqa. on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and width 5 cm, and is b233 zh/nsnds26y s9, lxkcpceuilt in such a way that one of the longer sides can be moved without bursting the soap film contdsy3s2n 6 p cs29 kezcxln3,h/ained 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?