The three common phases of 15gaov5uqvv( matter are

  Density is

  Substance A has a densh:v4ju pfu( snb4i4l2ity of $3.0g/c{m}^3$ and substance B has a density of $4.0g/c{m}^3$. 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 /el3usiazd1 3 a unit of pressure?

  Consider three drinking glasses. All three have the same area base, an /vh4qcs;i p3pd 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 than43;s pipqv/ ch 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 tifo sh1l4jl ;+sre called?

  When atmospheric pressure changes, what happens to the abso muvcd p::cx;l-6k;salute pressure at the bot:x;-6am u; sccvldkp:tom of a pool?

  You are originally 1.0 m beneath the surface of a pool. If you dive tozbxak9) 1glc+ 2.0 m beneath the surfaclk)cxag 1b+ z9e, what happens to the absolute pressure on you?

State Pascal's princip(xk w5n3 y22r8k2/pgni fah zg b:./zwirlc7ele.

State Archimedes' pr 9ax;z 9iu4u/ br .lg:lxrvw4oinciple.

  $50c{m}^3$ of wood is floating on water, and $50c{m}^3$ 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, what happens aq7p ldt +sr4:6ao+)fmd7air to tp q:so td)dr+4l 7f7a+ arima6he buoyant force on it?

  Salt water has greater density than freshg v.utgklv2+(as, d no*ey ,vmw4)qn ; water. A boat floats in both fresh water and in salt water. Where is the buoyant force vsg ( nyeot; nwk2, al,v.qd)ugv+m 4*greater on the boat?

  Salt water is more dense than fresh water. A ship floats in b0 a :scdnj8q vf0woul 7l75do)oth fresh water and salt water. Compared to the fresh water, the volume of water displaced in the salt w0lo8 5 asd:)wc7n 7dvj0lqo fuater is

  A steel ball sinks in water but flr/,ygc cp74t-9v4dnjfj qn 0loats in a pool of mercury. Where is the buoyant fo4q0cn y4l ,f9vct7/j jngrpd-rce on the ball greater?

  A 10-kg piece of aluminum sits at the bottom of a eze49.6apthae 7n 6-ao q0 acalake, right next to a 10-kg piece of lead. Which has 0a7-qe e94 ha ea66.pncatazothe greater buoyant force on it?

  A piece of iron rests on top of a piece of wood floating in a bathtub. If the ;k+/k l qac5dri/n8 +hx *ayri1 lsja;iron is removed from the wood, what happens to the wat jq+yixnl;hk *ai+k r;/c l8saa5d1r/er level in the tub?

  A piece of wood is floatingwj 7/:z.e4)od+ 8yw cz gcfcfcu47zyk in a bathtub. A second piece of wood sits on top of the first piece, and doe4c yfe7c zdkz)y4 .ow7c8fwuc: gz+j/s 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. The diameter of the pipe at point B is lar khagb. (u)n jlu/na tg79s,.zger than at point A. Where snu ga uzg )kl/.b79.atnjh( ,is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe2i6 . -u m ev(jrfrgwb)5y,lyz widens to twice its original radius, what iv-wu5rmry bfzy,)jle. 2ig6 (s the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal piu o*ph cia,*qz0jgk + *p5d8njpe. If the pipe narrows to half its original radicpa,nzpi jj+hu d*q**g5o k80us, what is the flow speed in the narrower section?

State Bernoulli's princip.l7d ;ag ixi) 9zxlos7le.

  Which one of the following is associated with the law of conse(z7h cmw uv/.bai5g a0rvation of energy in ia(a bwh0cgm.7z /uv5 fluids?

  As the speed of a moving fg*v bfx il)8 w2c7n0guluid increases, the pressure in the fluid

  Water flows through a pipe. The diamet,+b*/6he r jvc:r klaner of the pipe at point B is larger than at point A. Where is the waterc 6r+r/n j,bv al:ek*h pressure greatest?

  When you blow some air above a paper strip, the paper rx :0.fd 2h l,ampqez3ikk9f 1a)c h3tuises. This is because

  A sky diver falls through the air at termin5q uuo7p//t cnal velocity. The force of air resistance on him isqotcu5np7 u//

  Two Styrofoam balls, of radii R and 2R, 6 t tbkn(zb 4yd;1vm-hare released simultaneously from a tall tower. Which will reach th(tbk-b1zv;4 md 6tyh ne ground first?

  When a small spherical rock of radius r falls through water, it experiences,k5tesid t phij0 9pn(1vm2izw / ;+lw a drag foiwspe 09dnp ti,1km5v;h2ji z+(/wtl rce $F=arv$, 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 thrr 9 5b,ibdwvrt 158 s-vpsb(sdough a narrow pipe? That is,s 5b(bpi - rvr 9t5db,sv1wd8s if you made a 10% change 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 B has twice the diame:nh7v2.tkgc yut 9z 3uter of pipe A. Water undergoes viscous ugh729cnt:.k 3utzy vflow 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 have the same diameter, but pipe B is twice as long as pip4 n 02pg o;jzolcm-:ay7 zxps9e 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 B is Q, what is the ja-:7ln z4x9o gp z;0opc ysm2flow rate in pipe A?

  When soup gets cold, it of;goh ln1:wc, lm q-(fften tastes greasy. This "greasy" taste seems to be associated with oil spreading out all over the surface of the soup,(fmn ,wfg c- o:1hllq; 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, 2 dh(2xl fcjr :hv*q9zthe water rises to a height h. If the diameter were half as great, how high would the watcfh2hq *z d(xv2rl:j 9er rise?

  Certain insects, such1qc(rpy0p4r u+ 9:lf/vtbr) +nciwx*jizh l/ as the water bug, are sufficiently lightweight that they can run on top of water without breaking the surface tension. Water bug A has weight W. l+wz r*li 1c ybfht()qxn0 4 urpc ivr+9/p:/j 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 watra0arq ae2.q v,-ef 6loo5efn9p9 o 0ler bug, are 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 possin 6evqe -lf o0aa05.aerolr2f ,99op qble 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 cm x 4.00 cm has a mass of 30c ,3gstd-o ui3.0 g. What is its d ctu sogi3-3d,ensity?

  A liquid has a specific gravity of 0.357. What is its densi kjmw0d9t:je:10 dd ij( g fbs,bvr,l9ty?

  A brick weighs 50.0 N, and rt9;gj6tjxu fvqa((nf t. d0 ,measures 30.0 cm x 10.0 cm x 4.00 cm. What is the maximum pressur;.f , (gnt(tqxujvd0fa6rt j9 e it can exert on a horizontal surface?

  A person weighing 900 c;ch1fney ut(ndqs7/6 +mza. N is standing on snowshoes. Each snowshoe has area $2500c{m}^2$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine witn52e37vu mli ohstand at a depth of 120.0 m in iol 275muev 3nthe ocean?

  A circular window of 30 cm diameter in a submarin(cx06hm kq+dxvm5 ,qte can withstand a maximum force 0xvm,k x(dq 6qtcmh5+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 ifcb )am/ arab 5399t*4h0)pcj f rwbjmu the absolute pressure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below i91ryd7 ja7lp t q 4szw9(n0cpthe surface of sea? (The densiips9j4yl9 rwcq n77dpz t0a (1ty of seawater is $1.03\times {10}^{3}kg/m^3$.)

  What is the absolute pressure oicd 6w8qhm7bg (v;f :8 zn9vpat a location 15.0 m below the surface of sea? (The densi7pnqi vdcv:;(h8 fbwm 8 o9zg6ty of seawater is $1.03\times {10}^{3}kg/m^3$.)

  A 500-N weight sits on the small piston of a hyj1 8tdhjdg2dz07e*tbdraulic machine. The small piston has areaed2d7h 1d *tjzg8t0b j $2.0c{m}^2$. If the large piston has area $40c{m}^2$, how much weight can the large piston support?

  In a hydraulic garagyw8p:q.f.cy ue lift, the small 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 qy8pc u. yw:f.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 hydraulittu 9fc9+2dmlc piston. What force needs to be applied to a 5.0 cm diameter pidt929lftm +u cston to accomplish this?

  The small piston of a hydraulic lift ha/o0h)0g od(m 2qrc ntzs a diameter of 8.0 cm, and its large piston has a diameter of 40 2(gnod0) o/ t0rhzqm ccm. 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 air and 30 N in water. What ) s z/d/a1ngqkk3ct2bis the buoyant force oda/z3g/scbt k1 nk)q2 f the water?

  An object has a volume7vqu sak ajy *7ne*83e of $4.0m^3$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solicgu7+q 7ypq3wgl 36udrehb ):); a4,wcybqkzd iron is supported by a string while submerged in water. What ibq,3zg7: +wq)) k;blhy re437d c6qy wuacugps the tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gole:wtx.p:n)fz y1rg3bd 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 ( z5bili0+tp xt0q70irdensity = $7.8\times {10}^{3}kg/m^3$) 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 94;e , aknn x4rqyyep/N when it is immersed in water. What is the spe/k4xn an;rey p9yq ,4ecific gravity of the object?

  A container of waterhwoyb2 (/dl 4/ylh16y1vo cujp6c9bi 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 ini/ 2c6yow b9hloujhl14y c1p(yv/b6 dto the water, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum with a mass oy+m1+*ih3i r ro wg3qxf 1.0 kg and density of $2700kg/m^3$ is suspended from a string and then completely immersed in a container of water. The density of water is $1000kg/m^3$.
(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(n8ffa lw ij+9 and diameter 2.0 cm will just barely float in water. What jn9l+ fiaf8(wis its mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0*:fj qava5 5e5p yh+t*q8 nx fea/y9ij m wide, and 0.50 m high. How many kilograms of mass can be loaq5+a x a:ynf/a5eq* vhj*5te9j i8fpyded onto the box before it sinks in a lake?

  A $1.0m^3$ 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 water. The wdqmn:f 5wr/1k1 abb v3d)o ys0eight of the displaced water is 2000 N. What is the weight o: b) 5nadb1/qr3vyskw0m1d fof the object?

  A solid object floats in water with thrbfts0kf /4voj:9y8 0grz 7m syee-fourths of its volume beneath the surface. What is the ob rzo90fmv:t4yyb8/7 j skf0g sject's density?

  A 200-N object floats with three-fourths of its volume bc oa309t, er0)sppfel eneath the surface of the water. Wh9toel0ap)sr ep,f03 cat is the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice flo o16n4)z5 sy4.dbkqqh hce jz(e 100 cm thick. What is the minimum area of the floe that will just support the bear in saltwater of specific gravity 1.03? The specific gravity of.4d6z4ckjsheo (y1qq)zn5 b h ice is 0.98.

  Liquid flows through x28g*3f 5 mpi5z w7srsq ;jokla pipe of diameter 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 ax.b9u 4u tmelz.;:qyq 2.0 cm diameter restriction in u uy.z.lx:e4;mq bq9t the line. What is the velocity in this restriction?

  Water flows at 12 m/s in a horpzz:n .oz u)c7izontal 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 doe)ji/8ab ;d 3 qmyk-jecs it take for a pump to supply a drinking fountain with 300 kPa, if the fountaimq3-k8 )ejj dbc/ia;yn is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of a water storage tank that holb . ixz v2ke qs*a2f)w*qzuq13ds ubazi 3* *2)fvzw qxqkeq2s1 .water at a depth of 15 m. At what rate will water flow out of the hole?

  Water flows through a horizontal pipe 3 ,lsw+eifu8o7kj8 zy of cross-sectional area $10.0c{m}^2$ 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 $5.00c{m}^2$. What is the pressure at the valve?

  SAE No. 10 oil has a viscosity of 0.20 Pa-s. Hlr*1pq5ej- ek ow long would it take to pour 4.0 L of oil through a funnel with a neck 15 cm long and 2.0 cm 1e eklr*qj 5p-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 wall of an e x5(zlru 0c.nartery decreased the radius by 10%. By how much would the pressure provided by the heart have to be increased to maintain a consta.rlcx50(uze nnt blood flow?

  Two narrow tubes are placed inrr 3a)c0lu8fbb (2p6j jqb n0a a pan of water. Tube A has twice the diameter of tube B. If water rises 24 cm in tube A, how high will it r3 2arr bpcq6)n800u(jbf ljab ise in tube B?

  The surface tension of watek,h/aao ft3+mpz:0 qbr is 0.073 N/m. How high will water rise in a capillary tube of diameter 1.h 03:a kapmqf/o, z+bt2 mm?

  232

  To what height would water at 0 degree Celsius ris z)yw6ejgwqxl0(k n( 6e in a glass capillary tube with a diamy gjx)6kl n6weq(z 0w(eter of
0.50 mm?

  A narrow tube is placed vertically in a panpdqm6; 1wd9upcm,y j8or q.g( 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 ooqu;mj1.d 9rg wp6qcd(8m, yp f some soap. What happens to the height of the liquid column in the tube?

  Consider a rectangular frame of length 0.120 m and wi-m*aoer7fb*)0p v o k xu*s adgg+;r)wdth 0.600 m with a soap film formed within its confined*v0xbs* 7wuadr);mrk*afoeg ) -+op g 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 leml7ch)) pt qir-b /*wongth 12 cm and width 5 cm, and is built in such qh)/7tw)ob lrpc*im- 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 square?