The three common phases of matt9 velouki g*ksw g(8z8s+ ;b.rer are

  Density is

  Substance A has a deym0l9 agfd57s nsity of $3.0 \; g/cm^{3}$ 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 h+;i d by: +nyzg2mw;pnot a unit of pressure?

  Consider three drinking glasses. All three have the sam0-jr 9p /gvokqks7 c/ve 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 orq p97g0kcvvk/ -s/jthan A. Which glass has the greatest liquid pressure at the bottom?

  What is the difference between the pressuresy9yvq-9pc-q cyqaw;6 inside and outside a tire called?

  When atmospheric pressure changes, what happens to the absolute p3ld 1i)3yva*6n vghxa gvl;m2ressure at the bo2 6la1xyl)ngiamvhgd33; v v*ttom of a pool?

  You are originally 1.0 m beneath the surface of a pool. If yoyc.0b6 ez*db2:albd z-e 3c)l-9 hpgiex4dop u dive to 2.0 m beneath the surface, what happens to the absolutgzchpzxy)4p--d :d.dl3 i2b0ce*l9 eeo 6bbae pressure on you?

State Pascal's principlehu1 g/g2l;ji 8qp d 2;dos*nwn.

State Archimedes' princiof v3uasw28f l65ys m/ple.

  $50 \; cm^{3}$ 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 con1tr8wg1n p(ns stant density, what happens to the buoyant g1wnrtp ns1(8force on it?

  Salt water has greater density than fresh water. -)ayi :d 2lfee A boat floats in both fresh water and in salt water. Where is the buoyal-d i e2ay)ef:nt force greater on the boat?

  Salt water is more denpz 7jrr(sm 2:okg59lyq s r)l-se than fresh water. A ship floats in both fresh water and salt water. Compared to the fresh water, the volume of water displaced in the salt y s 79ol(z2pl)k-rrrs5mqjg :water is

  A steel ball sinks in water but floadr+dxv6 h9zgsr1d d89 ts in a pool of mercury. Where is the buoyant force on the ba8g rx9 v9d1hds+6 drdzll greater?

  A 10-kg piece of alumxy x/ut088ounhb; ep0inum sits at the bottom of a lake, right next to a 10-kg piece of lead. Which has the greater buoybh;x et8o uy /p0xnu80ant force on it?

  A piece of iron rests on top of a piece of wood floating hyp bbwq*9js:/-py7.g qup )h gs,j)iin a bathtub. If the iron is removed from the wood, what happens t qqj,-phy):gjsup b9 pw b/ys*7)g.ih o the water level in the tub?

  A piece of wood is floatfpgug/d;y 6 -king in a bathtub. A second piece of wood sits on top of the first piece, and does not touch tku/y6- fp ;gdghe 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. The diameter of the pipe at pfo6p snrfo :8sxrlz q(do6 518oint B is larger than at point A. Where is the speed of thez n8 6ox:qfd1po8lrf 6o sr(5s water greater?

  An ideal fluid flows; :ipol-f v e)o7xhke: at 12 m/s in a horizontal pipe. If the pipe widens to twice its o p h-e:e:7;olkxvio )friginal 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 naog .rm+vnyo -y*g.x+) izcf o)rrows to half its original radius, what is the flow speed in the narrower sect.) ) rf+izy *oo+-comgyg v.nxion?

State Bernoulli's printjj7lnb ,u.ba5y,50 )fo vsrwciple.

  Which one of the follow,j8ga8c :2ici:gs*n,ni r /ywqg+d9qcw o) dc ing is associated with the law of conservation of energy cw qasc,nri i*,cn:dg8j9q8+ o iggwy/ dc)2:in fluids?

  As the speed of a moving fluid increases, thelb ww 04w1n7 zsm4-ly4eil uu7 pressure in the fluid

  Water flows through a pipe. The diameter o aux2ko.q3)szrc82 (husthk 0f the pipe at point B is larger than at point A. Where is thh0xts h.u ua kz)crqo2sk(32 8e water pressure greatest?

  When you blow some air above a k(/ km b+abvx4paper strip, the paper rises. This is because

  A sky diver falls through the air at terminal vzr+06ngey74 aib d5igelocity. The force of air resistance on7 6zydneiai 0 5gb4g+r him is

  Two Styrofoam balls, of radii R and 2R, are released simultas2re tqj.9u; qi*6 kwvneously from a tall tower. Which wvi96srq* eq;j.kuw t2ill reach the ground first?

  When a small spherical r4 k fv038ekjtgon)r5eock of radius r falls through water, it experiences a dr ek0g 3r4 fjk5)voten8ag 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 ve5s ,k bj5q02+trtup a narrow pipe? That is, if you made a 10% change in each of the quantities below, 5e stp,rvkt+j2q05u bwhich would cause the greatest change in the flow rate?

  Two horizontal pipes are the same length, but pipe B has twice:0j t-vpao/ a v9nzi p11ojsd, the diameter of 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 t1 a,v-0oizo9:1 paps/jjdvn in pipe A is Q, what is the flow rate in pipe B?

  Two horizontal pipes have the same diamet0 dbwjk p2-f+ger, but pipe B is twice as long as pipe A. Water undergoes viscous flow in b2w0-b kpfdg +joth 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 seemsl3n zer1 w xygh ;ed,4/tebc6- to be associated with oil spreading out all over the surface of the soup, instead of staying in little globules. To us "physikers", thz ; ct,nb6eew41 hrgly-3/xde is is readily explained in terms of

  When a tube of diameter d is placed in water, the water rises to a heightf4t apfbjomgf7,g;s+ . bv8q 3 h. If tbf gf abfm;sg v47.3+tq,jp8ohe diameter were half as great, how high would the water rise?

  Certain insects, such as the water bugn5y*k4e) xty)a21gpbtv u 8wo, are sufficiently lightweight that they can run on top of water without breaking the surface tension. Water bug A has weight W.1veatxn) 2*)w5 tpougy 8y 4bk 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 bug, are sufficiently lightweight that hn1uvq v51*h 0n b nl*fqc+-eqthey 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, twice as wide, etc. What is the maximum upward force on the feq*5nn*ubnq+ vfl10-hvhq ce1et of bug B?

  A plastic block of dimensions 2.00 cm x 3.00ezdv xw vpe66,*) 7yxcugvqi.49ij7d cm x 4.00 cm has a mass of 30.0 g. What is its density?p).vcvv g, 667u 79 4yeizxedxi w*dqj

  A liquid has a specific gdbda , t;usuqsq719(t ravity of 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 17aa5v)dq qek10.0 cm x 4.00 cm. What is the maximum pressure it can exert on a horizonta1dv 7ak q)qe5al surface?

  A person weighing 900 N is st1m l4qf yhcadf3h 3t;9+3 mpzvr,:hk kanding on snowshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (abl (h 3xp(zs 7mm:+xi s9c1ggityvt( /qsolute) must a submarine withstand at a depth of 120.0 m in 3 syq txhisg:l(+c9vtm1(z7i pm (x/gthe ocean?

  A circular window of 309d c o9fa3m6br cm diameter in a submarine can withstand a maximum force ofao9m bf c63rd9 $5.20 \times 10^{5} \; N$. 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 is 307xg1cfvro zb::a(5eg 0 kPa?

  What is the gauge pressure at a g5x+ghz c:/ phssgn*(location 15.0 m below the surface of sea? (The density of seawatns:cs*(5gg / hz+px hger is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0f e lu4+;8xrab99y bvo m below the surface of sea? (The density of seawater iau flxeby+r;o9 v8b9 4s $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machine. The small:4tes8fe r go krf:8 y15wej.h piston so4e1 jr:5tf88rewf:.h ykgehas 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 small piston has a rajfy01xec)44.)udlkr : o)e5xxc aw lgdius 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 lifte4d1y.))lxfc)e 4r:xx cgjlo0aw5ku a car weighing 20,000 N on the large piston?

  A 13,000 N vehicle is to be lifted b b8w8*25jwsgei5b cy my a 25 cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm diamet bjmgw5c88b 2 y5esw*ier piston to accomplish this?

  The small piston of a hydraulic lift has a dis9l jvi-d.)dg ameter of 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises )sdl-9dij. gv 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 wat ap xx 791nzlkl *inyk/;2j1gner. What is the buoyant force of the wa 2n7yl lzik;1a/xn9kjxg p n1*ter?

  An object has a volume o hww7 bo:-knnkjo8/, kf $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solib;f5heqd -b7( 1ob8guz iij ixac;h 7+d iron is supported by a string while submerged in water. What is the tension in the string? (The specific gravity of iron is 7.odb-b;e7 8auh zi;1b gc if7x h+ij5q(86.)

  If the density of gold is liq1t;87y.9 ci6eusm c/ onhd$19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarine (dey8j7)y 8+/3oflcbkkeq2+m vv5n ik l cnsity = $7.8 \times 10^3 \; kg/m^{3}$) 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 6.01 pst+ oxb+7zb7hrjoo 6is+j 86 N when it is immersed in water. What is the specific gravity of the objer +js sbjhioop6 zox+7+tb17 0ct?

  A container of water is placed on a scale, and the scale reads 12hs gb(tnu9;f80 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and lowered into the8s;n f uhb(t9g water, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum with a mass ovm:lwr 4.0qvof 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 lengtfmn n/sf94d(bh 12 cm and diameter 2.0 cm will just barely float in wate d fn/m4(9bfsnr. What is its mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0 m wz4vdkvo*2*gkcw nb-. ide, and 0.50 m high. How ma** bv4k.zg- n2wcokvd ny 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 was j wmue.eomi6, 7)s 3h2/)xmtb. )v;k zsmwbpter. The weight of the displaced water is 2000 N..x/m) b) ;ibmv e t3kss7e2.ouzhwmmwjp )s6 , What is the weight of the object?

  A solid object floats in water with th*iz+b hn88lt uree-fourths of its volume beneath the surface. What is the object'sz8nb+*hitlu 8 density?

  A 200-N object floats with three-fourths of its volume b x.zzhnu /4ee/ x 6:ttkbmv-ue;f-*xxeneath the surface of the water. Whatv;- xxzzbhetxm 6ux*u f/: .neet-k /4 is the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floefm:52vwgrrh 9 100 cm thick. What is the minimum area of the floe that will just support the bear in saltwater9fw mr2v5h gr: 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 flow+.vuf uie0ab9 rate.

  Liquid flows through a 4.0 cm diametere we- a6fvz37f.,nrqt(1oqp y pipe at 1.0 m/s. There is a 2.0 cm diameter restriction in the line. What is the velocit owa -q7q3e.,ey fznvtrp 61(fy in this restriction?

  Water flows at 12 m/s i/99nc ok0dnvl7 x:ar hn a 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 : jn ye5wz2emr tim79jt1+,dldrinking fountain with 300 kPa, if the fountain is 30.0 m abom7,rj:5 n mt 1ezld yij+t2e9wve the pump?

  A hole of radius 1.0 mm occurs bu ld3rmo(:d5 l(delb ev8/;g in the bottom of a water storage tank that holds water at a depth of 15 m. At what rate will water fe dvo8 d( 3ldbl5;(:u /mblgerlow out of the hole?

  Water flows through a horizontal pipe of cross-sectional arenq;ek4 7 o5i nr uxsiypx3-. l-t,d.sba $10.0 \; cm^{2}$ 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 ity3 efz4z524d qdn em/gk g6u)0oxqc -c take to pour 4.0 L of oil through a funnel with a neck 15 cm long and 2.0 cd02/o4eqedkz35g zfcq46)yumng x - 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 buibal 1olt4s -s/ld-up of 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 maintain a constaob t-41sa/ls lnt blood flow?

  Two narrow tubes are placed in a pan of water. Tube A has twice the diams5r02f- vdslgxaed , 1eter of tube B. If water rises 24 cm in tube A, how 1 2 dsvd,-slre0xga 5fhigh will it rise in tube B?

  The surface tension lals,j7nkbmk 0 h4x 8tf7-h f)of water is 0.073 N/m. How high will water rise in a capillary tube of diameter7a8b j4xfl7nm-h)sktfl ,h0k 1.2 mm?

  232

  To what height would water at a b vlui0 .*ac,//9vuy e3uv 4prls5gl0 degree Celsius rise in a glass capillary tube with a diameter uav0i3yp.5lel*a luscg4v /b r/9uv ,of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and the water rises zz2 )tv3j4semin the tube to 4.0 cm above the level of the pan. The surfaz j )e3s2tzmv4ce 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 wislrzkbuuajiyvo.,v*i, d2m( r7 /* y9dth 0.600 m with a soap film formed within its confined area. If thus/ aj ily2ymo 7v k,.9d rviubz(**,re 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 c9 tm:k31a xvcwm, and is built in such a way that one of the longer sides can be moved withoa1: kwtxmv9c3ut 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 square?