The three common phases of matter arec1*q9w frbb3m

  Density is

  Substance A has a density ofvgz qf.3oj7ho,xul/q 3 xxr*/ $3.0 \; g/cm^{3}$ 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 uny(rvmmx2 insm053q ; /fj +cihit of pressure?

  Consider three drinking glasses. All three have tc rwgv+qld/ 5 (9pq hze8qdl* 3.ky9nz (czo7khe 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 greatest liquid pr nekqkplw/qh*l 35yc(ddzz c g+r(q7.oz9v8 9 essure at the bottom?

  What is the difference between the pressures insnz yi1ff c(e ..uzr q yrg/b)ta+77uv3ide and outside a tire called?

  When atmospheric pressure changes, what happens to the abs0x(wrfs0a3t f0l r7bi olute pressure at the bottom of aif0 lrfsx(tr ab0w37 0 pool?

  You are originally 1.0 m beneath the surface of a pool. . yr6g,r;mwki o pz.e)If you dive to 2.0 m beneath the surface, what ha.m zk woi)ep;r.r6, ygppens to the absolute pressure on you?

State Pascal's principle.a10.n dj,g1jzq7j +51rofkahmhx/l q

State Archimedes' principle.w02xwspx91imj+m + ttp 51u xv

  $50 \; cm^{3}$ 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 density, w59)e s* d* zkr2uy5c oxd3giqfhat happens to the buoyant fkdzi*o5c3dq9y*5u rg2fx )e s orce on it?

  Salt water has greater density than fresh water. p,v +z 3etf(a 2f9frytA boat floats in both fresh water and in salt water. Where is the buoyant force greater on tfft,3+av p9zr f2ey( the boat?

  Salt water is more dense than fresh water. A ship flochge:/9x )a;,lwur 8v fe(b yb(bk)veats in both fresh water and salt water. Compared to thlw/u9b hyark;e )e vebg: ),bxc(v(8fe fresh water, the volume of water displaced in the salt water is

  A steel ball sinks in water but floats in a pool of mercury. Whernudlh h17ew0 ;o5:mcv1hu j 0ze is the buoyant force on t1d0m7h hwec5h0zn1 o l ;j:uvuhe ball greater?

  A 10-kg piece of alumry rehvk*0o g.qs+ .r3inum sits at the bottom of a lake, right next to a 10-kg piece of lead. Which hskegh r+v.0yqror3* .as the greater buoyant force on it?

  A piece of iron rests on top of a piece of71v(l/q bc 7u;c e/ nkiu)bigo wood floating in a bathtub. If the iron is removed from(i /egi; 7culu)vn1b/obc7k q the wood, what happens to the water level in the tub?

  A piece of wood is floating in a bathtub. A second piece of wood sits on top5 bhh.9axin nvo21j *)lv5gh v of the first piece, and does not touch the water. If the top piece is taken off and placed in the water, what hai5bjn1 5 ghv)v2*xhlaohv.9 nppens to the water level in the tub?

  Water flows through a pipe. The diameter of the g-wk1ynp-y v7hd*/yp h he+pcv+k83vpipe at point B is larger than at point A. Where is the speed of p-+vh7ck+ kd3 1-/ye 8v*gwpvphn hyy the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pip m(zao t b()t uoxtri+9e*/rb1e. If the pipe widens to twice its original radius, what is the flow speed in the wider b+rtu*(orm( b /atxe o) zi1t9section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narrows to +hxb3e0v l4u0kgr/mr half its original radius, what ek hb 0u0 v4rxlr+3g/mis the flow speed in the narrower section?

State Bernoulli's prin 4d-d05zsuszr1lu l-cciple.

  Which one of the following is associated with the law of z.w llf5+ab6w8m*wo ,fn+tvtp9ne +s conservation of energy in flu w6lpsmo8z v5.awn+,f wb*lft+t9e+n ids?

  As the speed of a moving fluid increases, the pressue 38yp 1gmj1sere in the fluid

  Water flows through a pipe. The diameter of the pipe at point B is larger thgw7r z 9s*ywq)kk* 8xfm5u5pban at point A. Where is the w7w f8bs5 x k**yruzp5g9mqw )kater pressure greatest?

  When you blow some air above a paper strip, the paper rises. This iseor8tb wh+bbu : l36;pf9z:mu9kuat : because

  A sky diver falls through the air at terminal velocity. Thd902v4lx ewe .qmi, ace force of air resistance on him dwl,i0q m v.4aec9ex2 is

  Two Styrofoam balls, of radii R and hn:quk:nueq0j c852 z 2R, are released simultaneously from a tall tower. Wz08un hqeq5k n 2:ucj:hich will reach the ground first?

  When a small spherical rock of radius r falls through water, it experiences a dr smvsvh9k-cr5dsd /,tcm .qy6 w1n/y9ag forcvw9t-m9h q ds 1c .//6yny5 scmd,vrkse $F=arv$, 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 ta a 6s6y4x-mkphrough a narrow pipe? That is, if you made a 10% changaky4pxsa66 - me in each of the quantities below, which would cause the greatest change in the flow rate?

  Two horizontal pipes are the same length, but pipe d(xt20:yb5jhtrp dye +bhv3+ B has twice the diameter of pipe A. Water uy:b3hxv+t0(jb+ydrth2e p 5dndergoes viscous flow in both 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 ha2+sd 2mm2h /5u4oh uh1msztppve the 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. Ih4utsh 1sm25+d2mz mpph/2 uo f the flow rate in pipe B is Q, what is the flow rate in pipe A?

  When soup gets cold, it often tastes greasjp4v7p 1d0 zl a5s+moxy. 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 uspzaplmx+574o jd0 sv 1 "physikers", this is readily explained in terms of

  When a tube of diameter d is placed in water, the water rises to -r le74(9*pm hfpbdr25npzlla height h. If the diameter were half as great, how high would the waterlne2pl5z*drm4( 9l - b frph7p rise?

  Certain insects, such as the water bug, are sufficiently lightwevh8uo ath1 toe1dm5c;;pi4 0wi iuc7+akf0 m+ ight 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, twice7cu8t; 0hmiuf c 1poa dv 4;+1k 0iwhoma5ei+t as wide, etc. What is the weight of bug B?

  Certain insects, such as the water bug,7zqzlva +x2b, are sufficiently lightweight that they can run on top of water without breaking the surface tension. This is possible because vz 2qax7,zbl+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 dimensions 2.00 cm x 3.00 cmk9wx;( 5*)pcjuq5*mxh7ws q xpny:q p x 4.00 cm has a mass of 30.0 g. What *p x9qcx :7wpnuqmykwpj*5xs q;5()his its density?

  A liquid has a specific go5ep( j 6z:njv(nr4,b jtdtz: ravity of 0.357. What is its density?

  A brick weighs 50.0 N, a tii:s3vv6faqg t;,. und measures 30.0 cm x 10.0 cm x 4.00 cm. What is the maximum pressure it can esu.tf6 qti,ai: gvv;3xert on a horizontal surface?

  A person weighing 900 N is standing on snowshop+ iovp..31tf/,kt7 jp ewmmwes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarzzi r4(.tupdvf7p 1igcxcw08 eas ; n3q* pz8,ine withstand at a depth of 120.0 m in the oceaxi47wf 3 8 tr z*(zz0vds1.;app 8gec uipq,cnn?

  A circular window of 30 cm diameter 9*q5 cg:akded in a submarine can withstand a maximum force ofe * d9ca:q5dgk $5.20 \times 10^{5} \; N$. 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 prest6hh p.x)ej) psure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below the surface qm4-s a:2voy1a q.ozhof sea? (The density of seawatera- mq1z4qs h.: voayo2 is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below/miwgsixr2f w2 (f0 rdju:,h9 the surface of sea? (The density of seawatfgr im 2:ru9dxwswhif0j (,/2er is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machine. j( xlaij,c/.3b)dy nv The small piston has /il nvj ()3d .cayjb,xarea $2.0 \; cm^{2}$. 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 andh o,8mtc e0 x;glg iw9-oolyj,1ck,3z 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 20tk1l ,h;x9eg38my0, -wog ccz, loi jo,000 N on the large piston?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter hydraui.:/qng 4 aiyeqfgwc4h:e* 3zlic piston. What force needs to be applied to a 5.0 cm diameter piston to accomplish this?ig . acqq y:z4hne4/: *3fiewg

  The small piston of a hydraulic lift has a diameter of 8.0 cm, and its largll) nh: /fhpl.e piston:p) nl/l hlh.f has a diameter of 40 cm. 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 airo;i-(0 tqr+k;yij pae and 30 N in water. What is the buoyant force+;pr t;iey (iok0j-a q of the water?

  An object has a volume of7vfuk;7q( e x w;j jhik688jgy $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is suppo7qp48 :pxs.1kd+:ufl bjm vho rted by a string while submerged in water. What is the tension in the sd1ph+f m:bk x:vjq4lou8s .7 ptring? (The specific gravity of iron is 7.86.)

  If the density of gol9 aswbevwiz,7s j7m i:0+(8ngyj5c) u mliw)md 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 submarit lki*roo6+x/unysw 1k 6:x/ mne (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 air an1(i-x) w9ui fcma-vctd 6.86 N when it is immersed in water. Whxi -v-twum)a9(f1 cciat is the specific gravity of the object?

  A container of water is placed on a scale, and the scale reads 1me nsqh+zt(y35qe:k(20 g. Now a 20-g piece of q k(sz ee(y5nh3:+qmtcopper (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 1.0 kg and density of q)j5m2.dm6/ n8neviq 4jmuxu$2700 \; kg/m^{3}$ 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 2.0 cm will just bareldzv c;hkwv2u -rn:/ -uy float in water. 2r:-uk/zvcn-w;vdu hWhat is its mass?

  A rectangular box of negligible mass measures 5.0 :zad yyfa)l)z-g1fw8 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loaded onto the box befor)wf-alzfad81 )zygy : e 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 surfacekc-ijo:,3 t.ht1 q 6nzd/ujbl of the water. The weight of the displaced water idknqt/3: z.oiu j,c-t 1jl6bhs 2000 N. What is the weight of the object?

  A solid object floats in water with three-fourt:a*t) 98 ccos63 k0lbz;mize(y0psu r)mmty ahs of its volume beneath the surface. What is the object's densitis lmcr 3kzm0 8t)bcuzm;90*t pe y:ao(as )6yy?

  A 200-N object floats with three-fourths of its volume benea e,v6i:uuv7edye +*b z kqm88bth the surface of the water. What is the buoyant force on the ozk 7:uq bem y8*v,v+ueeb i68dbject?

  A polar bear of mass 200 kg stands on an ice floe 100 8q 5lpt9fceon 9o2ec2 cm thick. What is the minimum area of the floe that will just support the bear in saltwater of specific gravity 1295o9qcpl2e f8 entco .03? The specific gravity of ice is 0.98.

  Liquid flows through a pipe of da fej-2f,0 tiiiameter 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1 rfjl4jp 106v5fcm1on b)czf r* ry(n2f2.wjn.0 m/s. There is a 2.0 cm diameter restriction in the line. What is the velocity i ncnjf 5vr10rpr 461n f m2fwz.oyjfjcl*b2()n this restriction?

  Water flows at 12 m/s in a horizontal pipe with a pressurg /r qkdl)-l+ve 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 fountain c: -4a5; xy x j0 ldkon0qxym3h6sno.lwith 300 kPa, if the fount4xnxoldk-jcx3.:ql0ams6 n yo ;0y5hain is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of a water storvf9 udkm 0h:h/age tank that holds water at a depth of 15 m. At what rate will water ufkh :/9mvhd 0flow out of the hole?

  Water flows through a horizontal pipe of cross-sec(a8m nxxd7iz z0 fysn)4;kws, tional 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 p m u85lre9j l 0xcp7g3jqh:d9sour 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 t7jchs j9 0drp95lq:3 gmx8uelhe 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 ar 2;ofqv:r mx0mtery decreased the radius by 10%. By how much wouldq; v0m: 2xform the pressure provided by the heart have to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of water. Tube A hb*n ndlv/ zrf.m9x;y.6e1nq gas twice the diameter of tube B. If water rises 24. z.x6bng/ 9fneny dl;m vr1*q cm in tube A, how high will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will water ri/(s jt86bzyc wse in a capillary tuzc/8 by(t j6swbe of diameter 1.2 mm?

  232

  To what height would water at 0 degree 5khep4(z+2cla fzd b+ .0dvxa 9s2na m.apk,kCelsius rise in a glass capillary tube with a diammn+za90.kepzsa ac 22pd,xfkhlda( vb 5 .k+ 4eter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and the water rises in ,f5gtrtmb:-s4r 4 d8) ddlb5(ailoq kthe tube to 4.0 cm above the lbtf4dd4 m :)5 b -8g(5srlak,dtqilr oevel 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?

  Consider a rectangular frame of length 0.120 m and* ioajq/r ,- 3qecdbf2 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 exr/a,3ciq-oqf* ed b j2ert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and width 5 cm, and is buie a+,j8f7- 8ebryhyyolt 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 squoe 8j8y7a by, fry-+heare?