The three common phases ofu 48okmrrv(5x matter are

  Density is

  Substance A has a density of(y5 wg+f un7pf $3.0 \; g/cm^{3}$ 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 pjwd, s5i imw.knp4ot4 *you(b5 x+ -qtwf:h3 of pressure?

  Consider three drinking glasses. All three hav/loqc 6 stu.6qe 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 na.losq 6/ uqtc6rrower 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 hj4/c/4w; l3vh r,sx*pq usvven the pressures inside and outside a tire called?

  When atmospheric pressure changes, what happepp:+ty ,f+a dv++hrb+hht,rqn l y6o*ns to the absolute pressure at the bottom of a dp y6 f+p,t +arn+t*qorhv,h+by+hl : pool?

  You are originally 1.0 m beneath the surface of a pool. If you dive to 2.0 m bulwjsz,74 / (shu1-vq t ant-neneath the surt1us7/n(j4v -,zsuathnwq l- face, what happens to the absolute pressure on you?

State Pascal's princiyal3g 5zy/w5))47xsph o h2zcs ghvi6ple.

State Archimedes' principlek(dq6/o)eu b7wf6f vb.

  $50 \; cm^{3}$ 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 watf- k t1:gzu;6cnceknb deq)yw+q-:r8 er of constant density, what happens to the buoyant force on itbkncz:q-dqny-)w ec:gfk+68 t 1e;u r?

  Salt water has greater density than fresh water. A boat floats i6bzi3vwvg 9cvcy p3g3kh l 59)n both fresh water and in salt water. Where is the buoyant forciz y6)vgk9 w5gvlcvh9p3 c33 be greater on the boat?

  Salt water is more dense than fresh water. A ship floatym bhdq(10/ckj (wd.zs in both fresh water and salt water. Compared to the fresh water, the (qbd kz.ym0/(h1j wdcvolume of water displaced in the salt water is

  A steel ball sinks in water but floatsfj5hm;iy ) c0b in a pool of mercury. Where is the buoyant foj 5y0cm if;)hbrce on the ball greater?

  A 10-kg piece of aluminum sits at the bottom of a lak0+ lk4(xao* i(stv o1lmbtv.le, right next to a 10-kg piece of (aov1bl4lotlv.sx+*0kim(t lead. Which has the greater buoyant force on it?

  A piece of iron rests on top of a piece of wood floating in a bathtub. If the ie(af/+u /x xbw2s(nk lron is removed fsb2l n (x/ku/(xafew +rom 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 vankk ti5 8me81(x (b0b ekc*ykog;d*on top of the first piece, and does not touch the watecgky * t mk8(01bek(*iek; o5nb8xvdar. If the top piece is taken off and placed in the water, what happens to the water level in the tub?

  Water flows through (k:t :lttg8 6kjas6jvj,x.txa pipe. The diameter of the pipe at point B is larger than at point Akg8 .ta6x jj,vtt xs:kl jt:(6. Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe widens to t8*4w(x egrmc hwice itc4x *r8ehwmg(s original radius, what is the flow speed in the wider section?

  An ideal fluid flows at 12 3azbs4d-t4bfc3 ( fqlm/s in a horizontal pipe. If the pipe narrows to half its original rat3 bldb4-c ffzqa43s(dius, what is the flow speed in the narrower section?

State Bernoulli's principl pl p9: 4.ozudwmwc(78vt( ac;k kh8ile.

  Which one of the following is associated with the law of conserva(l blvk d8k(7hbynm s0b3 -4oktion of energy id7bs l3b ykkk4no(h 8 -0lvbm(n fluids?

  As the speed of a moving fluid v3,y/smcym 4+ xrk,mzincreases, the pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at po9km3 *ft umu;4y:p*too 6djl cint B is larger than at point A. Where is the water pressure greatesdu4ok3*mt;m ycot *:up6 jf9lt?

  When you blow some air above a paper strovz mrbyx w /2r69sd-a+rzbd 834xj-wip, the paper rises. This is because

  A sky diver falls throicg l-(hdv+zsr3ei 5;. 8zxc iugh the air at terminal velocity. The force of air resistance on h5 3gx;.vdilci c es(hiz r+8-zim is

  Two Styrofoam balls, of radii R and 2R, are releasey c/p7ddyjzdk r*q8.5d simultaneously from a tall tower. Which will reach thez7 5d*dq jk/.y ry8dcp ground first?

  When a small spherical rock bcjvtpii.wo 8-2t5z)w x(r m3of radius r falls through water, it experiences a drai rozjvtm-.5(8c)wbtpix 2w3 g 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 narroz kv,f2o-fz 5hw pipe? That is, if you made a 10% changef5 2 -fzhkzo,v in each of the quantities below, which would cause the greatest change in the flow rate?

  Two horizontal pipes arb;6gt3 ndhg bxtd/d1.e the same 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 lengths of the pipes. If the flow rate in pipe A is Q, what is; gbtgdx1hd tb3dn/ 6. the flow rate in pipe B?

  Two horizontal pipes have the same diameter, but pipe B is twm2l sn;1fcd uvy1 sg5w.7ts3 pice as long as pipe A. Water undergoes viscous flow in both pipes, subject to w 35 u2p gtfdnl11ms7s; .cysvthe 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 of4jvnp j49oui .ten tastes greasy. This "greasy" taste seems to be associated with oil spreading out all over 4.4o 9ipvuj njthe 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 waterxk)ukq.:z fvbj-h g4*, the water rises to a height h. If thu*f) kx qkjb-:hgv4z. e diameter were half as great, how high would the water rise?

  Certain insects, such as the water bug, are sufficiently lightweight that they ,6dk a4qoj0atcan 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, bo jqtad,4a60kug 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 lightwmy0zj74 bkjw+yqd8p4 eight that they can run on top of water without breaking the surface tension. This is possible because the water, due to s4 wp04 7+qzjyk yj8dmburface 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 3.00kv-vot8e,h c70 qqe f;e2j+ wu cm x 4.00 cm has a mass of 30.0 g. What is its dene8;q2qo vce7j t- k0wveuf,+ hsity?

  A liquid has a specific gravity of 0.357;zp)l(auu 3;wn yqt *k. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cmc kabo 4vmi(ro;8uk;q +artrq)*9: cf x 4.00 cm. What is the maximum pressure it can exert on a horizo+4k; mri;vcrabftau :q)* ocqr9k o (8ntal surface?

  A person weighing 900 N is standing on snowshoes. Each snowshoe havz)qauw bh8, .s area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstansmgsb j8he a)j.17+uid at a depth of 120.0 m in the s ms+7a8)jji .bgehu 1ocean?

  A circular window of 30 cm diameter i;bhj u5 -xpq cg :nba4lgq*f0lr;o(n) n a submarine can withstand a maximum force gf0q - ;*x (ja;p5:nqbbnclgr )hol u4of $5.20 \times 10^{5} \; N$. 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 pres2t vej9j1 rt0msure is 300 kPa?

  What is the gauge pressure ati)0o*b1bk. kcryz; j n a location 15.0 m below the surface of sea? (The density of o zyb;)*n b0.k1rcj kiseawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below the y 0wsp i8lg/v kss -ufi4s37(v9zu7ijsurface of sea? (The dens4 ivis 8-si3j0y g9w( puv lfkuz/7s7sity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machinpd2xf*4z8jz::w,q skdj r qs i*lkw ,(e. The small piston has wqdjxz 4 :kwr,f:sq*ld, 2 pik*8js z(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 h/e0ga,za yi )x4(kopij25bko 32 j)tanz6 gismall 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 at( n)2yika 3i2,0 be/k pg5gxz4j)aoihzj o6 order 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 hydraulifcwwar3 ta pjf+)9 /h6c piston. What force needs to be applied to a 5.0 cm diph+ f 3a6tj wc)arf/9wameter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter of 8.0tak+( ,svbi 9w cm, and its large piston has a di+ wt,kav sb9i(ameter 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 weigtg 3h .2 :ud)aceun,y 4houf. m:fxz+xhs 40 N in air and 30 N in water. What is the buoyant force of the h+e g4zfd:yao3mcu h:x.u) xnfut2,. water?

  An object has a volume oc xs-m7fx*fuk fk/; ;of $4.0 \; m^{3}$ 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 submerged in j1etb 7ngu05y water. Whgu7015nby e jtat is the tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gold is ka cy(+pcpj 9tdji;+ s,c9.fk u6pby5$19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarin8q/-n/ cm3 9 rzcnclofyzqi ;-e (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 and +tk/tu p:;cb)bt j 8fx , 1w3rxnm-cpi6.86 N when it is immersed in water. What i-bfmt1)jn t8k/ixxrpbt 3w c+ c;u:,ps the specific gravity of the object?

  A container of water is pl(qh5:k-cgy hg ai6 tu)js+0xmuj1s*yc- ax ;gaced on a scale, and the scale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspende +cuhyma s0kc: ji-gsgt5*g)-u hj(xaq1x; 6yd 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 och fww ad:6o+-f $2700 \; kg/m^{3}$ 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 oftoeg4 yprs: pp*f)s+ 3 length 12 cm and diameter 2.0 cm will just barely float in water. Wha4 o:ps)r ppey+s3t f*gt is its mass?

  A rectangular box of negligible mass measures 5.0 mr6th; u,k5ku a long, 1.0 m wide, and 0.50 m high. ;,kk5tuh rua6 How many 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 (a el6bq5jukw 9ec0z+surface of the water. The weight of the displaced water is 2000(w0 q 9lc+baj6 ee5zuk N. What is the weight of the object?

  A solid object floats in water with three-fourths of its vol/ l3il1xp( b6p lzxgh5ume beneath the surface. What is the object's l/gbl3izl(x5h x61p pdensity?

  A 200-N object floats with three-fourths of its volume beneath the surfa6cgflt,; -/vsn qk. oece of the water. What is the buoyant force on t,l/ ;s -cntg6qfoe vk.he object?

  A polar bear of mass 200 kg stivldic j3s*uj1+q(5f6 k 7 kyj 7vla+aands on an ice floe 100 cm thick. What is the minimum area ju3lal6fv c5(ka 77v j1 d+*j qyis+kiof the floe that will just support the bear in saltwater of specific gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pipek +0wjv y;(hz, qhl1f2c*tuf q of diameter 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 rwow 33n 7 xlnt:(s6k(hsrnt/cm diameter pipe at 1.0 m/s. There is a 2.0 cm diameter restriction in the line. What is the velocity in this restrictslnhwnt3nr 3 /r(:6 t(k7x sowion?

  Water flows at 12 m/s in a horij m rx;nd49e-- t 1httyp1urk4zontal 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 pum/f. zv .nsfhdi8z+))axqr b9 xp to supply a drinking fountain with 300 kPa, if the fd)fxfiszr. 8 .n9 /ab)qxzvh+ountain is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in th2re5g27oeb pdi gy ;(4g u62vs3opb gje bottom of a water storage tank that holds water at a depth of 15 m. v prg g(d5y26 22u3bjeigbeoo;gp 4s7At what rate will water flow out of the hole?

  Water flows through a horizontal py.lj:jny)uia5;x+91l mq au q ipe 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 long woul 8j bva)*h9bidrixcnbh-y:uv1hp*19 d 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 negle)bub19hri*v8*a9hp- : b ji dyhvc1nx ct any drag effects due to the upper part of the funnel.

  Suppose that the build-up of fatty tissue on the wall of an ax poll3 vppw3e/: wh6/rtery decreased the radius by 10%. By how much would the pressure provided by the heart have to be increased3l p3o/vxp 6/plhe ww: to maintain a constant blood flow?

  Two narrow tubes are placed in a pan l:9 sdgx) x;x/lf g4cyof water. Tube A has twice the diameter of tube B. If water rises 24 cm in tf)/;xsl4c : xygglxd9 ube A, how high will it rise in tube B?

  The surface tension of water is 0q k 599c fbj.xzqxihy8o mx5(..073 N/m. How high will water rise in a capillary tube of diametf(xi5k.jx 9 hm 589xqbqzoy.cer 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capi phz8+3r tmta v/ h4hnoqo0l -xt5;ol/llary tube witol; zp85+m4ha /r-htqo t0nholtv3/ x h a diameter of
0.50 mm?

  A narrow tube is placed vertically in a pan of wateu uop,9mx9 6apj8w bw0r, 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. Whaxap ,wo89pmu 9j 0bwu6t happens to the height of the liquid column in the tube?

  Consider a rectangular frame of length 0.120 m and width 0.6000b+* 5g89 kkeikiv kyu m with a soap film for ikkue+k0 k8g9vbi5* ymed within 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 ag jqi9 0pj,z+*8uh ettnd width 5 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/mqze* pt9 jg8u0t+,hji. How much work is required to move the adjustable long side so that the frame is 12 cm square?