The three common phases of mp d ad7xer09e;8ggj a3atter are

  Density is

  Substance A has a density 4 ;s+( yiogot7bhqs-rof $3.0 \; g/cm^{3}$ 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 jis e :kv oy 4- xamgyb*o)o(6y-7lq(ounit of pressure?

  Consider three drinking glasses. All three have the same aree p obuaosw*m1x(,hs- .ap1h.a base, and all three are filled to the same depth with water. Glass A is cylia.o* x.he(u- 1pma,b opws1hs ndrical. 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 pressure at the bottom?

  What is the differenc d )h8c,k bdz *+,k,z)smdyieue between the pressures inside and outside a tire called?

  When atmospheric pressure changes, what happens to the absolu2vbtji, )0hpzam rh)(te pressure at the bottom of a ph2(m)zhr,ji ta)0 b vpool?

  You are originally 1.0 m beneath the surface of a poqr/txp98k4 dvzhb6/mz b/n . s8lwax1ol. If you dive to 2.0 m beneath the surface, what happens to the absolute prebsqn .a8zt/9 wmrb 1hzd x4p//6kl8v xssure on you?

State Pascal's principle 2fx u -6v 9dbp).s;y)rcvabij.

State Archimedes' princupld u5)r2njtv*e)y 7b) 7 dgziple.

  $50 \; cm^{3}$ 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 c1x og z8u dguwp-80l7ronstant density, what happens to the buoyant force on g0p-l81uguz7d wo8 xr it?

  Salt water has greater densit/j9d je( qv;mp6mirk:y than fresh water. A boat floats in both fresh water and in salt water. rqke:;(jmj9vdim 6/p Where is the buoyant force greater on the boat?

  Salt water is more dense than fresh water. A ship floats in both frticyf31q ;pg8;y0lsve+ e3hc esh water and salt water. Compared to the fresh water, the volumh3lgec83ypyi; + ;c1f q0 vtese of water displaced in the salt water is

  A steel ball sinks in water but floats in a pool of mercury. w)a-i *ovw k1hsl0psdcu f5tb0; 72rqWhere is the buoyant force on tbact2dwp vo107)sqw ;r*k5ius -f0h lhe ball greater?

  A 10-kg piece of aluminum sits at the bottomm l1j vhtd87pi.z 5+ u*z342ylrbehl9x hlnf( of a lake, right next to a 10-kg piece of lead. Which has the llp j+1 29l4* unfd8he(mhx rz35.zi7hvyl bt greater buoyant force on it?

  A piece of iron rests on to 1cheolv-u1 ;kp of a piece of wood floating in a bathtub. If the iron is removed from the wood, what happens to the water level in the tubuvhl-1c;k eo1?

  A piece of wood is floating in 5d6q ps8rmeqgv )61vpo*u .n9wz9 bar a bathtub. A second piece of wood sits on top of the first piece, and does not touchvopars1.u g8pve9qzdq59 m) nr*w6 6b 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 uhf7uoa0v11g* - iw dgj yi,*rB is larger than at point A. Where is the speed of the water great uvo ,i-*dyigfw0har1j1*7 gu er?

  An ideal fluid flows at 12 m/s in a horx;6tzkvo b bf-sb,3;qizontal pipe. If the pipe widens to twice its origxt bszo6- b,q;b;kfv3inal radius, what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizo)0 s:+9agzzqs(ni w. keis /ugntal pipe. If the pipe narrows to half its original radius, what is the flow speed in the nasgki0 ne+(u.g9:s wza/siqz)rrower section?

State Bernoulli's prig-8kwa4j47pwk rq: 5 qbtg;nznciple.

  Which one of the follobb;k6qg-1 mrk wing is associated with the law of conservation of energy in fluid61rbbk k-m ;gqs?

  As the speed of a moving f txbvfu5 8xd gig5o,0eh.r5f- luid increases, the pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at point B is l /tf4x9 uivh6cvgv7:carger than at p/fx6v: 94 cv tg7vciuhoint A. Where is the water pressure greatest?

  When you blow some air above a paper strip, the paper rises. Thiuzq*n/o dr6b:q/ir 2gs is because

  A sky diver falls through the air at toy4/+(p r+bhfgre6) b5y faheb (qwz2erminal velocity. The force of air resistan 4obfyh + y(pze 2r+hfaqw 5e)r(bb6g/ce on him is

  Two Styrofoam balls, of radii R and -r;u wm8s ,jjgc 05ymi2R, are released simultaneously from a tall tower. Which will reach the ground firstjsw gj8uc ,; 0-m5myri?

  When a small spherical rock of radius r falls through watwa v35/dsx3zyer, it experiences a drag vd3a53z/ y xswforce $F=arv$, 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 ofqnpbcn-7 ;(o2bq ybz, fluid through a narrow pipe? That is, if you made a 10% change in each of the quantities below, which would cause the greatesob2; (z cnqbny,q7bp-t change in the flow rate?

  Two horizontal pipes are the samexf6o l/ cc)s5 is0sem4jn j3q ;6e7ske 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 the flow rate in ;5/j6e fe s0x3mq4lj7n 6esics sc)okpipe B?

  Two horizontal pipes have the same diameter, but pipe B-.ne(ic p62 iwpv 8eka is twice as long as pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the lengths of i6n(8kie -pcvp.w 2 eathe pipes. If the flow rate in pipe B is Q, what is the flow rate in pipe A?

  When soup gets cold, it oftex;./7d-.+k i3 hu ,* azg jipkfiffyf:9etfvnn tastes greasy. 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 us "physikers", this is readily explainedzfn kfv :hu+.jkg y3 eif9f 7- fd*a;.tpi,xi/ in terms of

  When a tube of diameter d is pla h2(q6hd 7f w* qn2ckxzv,p9acced in water, the water rises to a height h. If the diameter wervpq9ahxdq *2k(h ,7zfw2cn 6ce half as great, how high would the water rise?

  Certain insects, such as the w67xk nuwuzh; :ater bug, are sufficiently lightweight that they can run on top of water without breaking the surfa; unw:6x7ukz hce 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 weight of bug B?

  Certain insects, such as the water buga6f:jrm 0y0sgg e,-ffd ld-z 0, 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 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 ma:m,0eazgfrfs0l6 d-0fjy dg -ximum upward force on the feet of bug B?

  A plastic block of d v*8.y/v f)qp:cmoh pwimensions 2.00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. m:ofq) *wp/v. ch8v pyWhat is its density?

  A liquid has a specific gravity of 0.357. What is3 cy7+dq w85cmr6 ykut its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm6brq5(x j f.9kz5ad0d agr+ ns x 4.00 cm. What is the maxi0+xsf. gqn5z drk9(5raa6dbjmum pressure it can exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each snowshoe hasdpz dny7 5ik -:h5)tvp area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absoluca ttf; ;ps16k:xuk( ete) must a submarine withstand at a depth of 120.0 m in the ocean?tt ;c6 ;:(puaxefkk1s

  A circular window of 30 cm diameter in a submarine can withstand a maximul, his0qns. y-b-ixm6 m force of 0-s6 y.xli,bhsnm -iq$5.20 \times 10^{5} \; N$. 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 absolutewp )s9y p0utrq ifcx:8d/e* /i 6xfvb9 pressure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below th *o .jie,jzxf d,0,vg dvl*l8de surface of sea? (The densit ,vz8jd,dj ielo0*gf,x.ld * vy of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute ( h+zbzvi8o30oan,vei5 h4 l jpressure at a location 15.0 m below the surface of sea? (The density of seawater is+e4 o hh0jza3ov8ivl,(5zbn i $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small pist6b b -zwrwf;gcaua+0o/dwcvk y-8 1 ,yon of a hydraulic machine. The small piston1w- bc;a-rgdu0 focw6yky a+z/w,v8b has 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 radius of 5.0 cm 0fgu 6wyhid;* :7 nmvxand the large piston has a radius of 15 cm. What force must be applied on the small piston in *nxh0d6ygim; :w7 vfuorder to lift a car weighing 20,000 N on the large piston?

  A 13,000 N vehicle is to be lifted byr loc. m2.jv1,onbf38j( zaa i a 25 cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm diameter pis fj.bjnv(8rzmioa 2lac ,.1 o3ton to accomplish this?

  The small piston of a hydraulic l98qxwtn v7lw(nq0x 8 wift has a diameter of 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a loa 07n l vx8wqxwqw(8t9nd 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 j /f)dp,4t.not i at-apmxv oeb5(51yair and 30 N in water. What is the buoyant force of the watebp)mto.t4jxd,(y1an5 voeit5fap -/ r?

  An object has a volume x(,ll vyjyz:,li0kb7srvq ;ie18 e 1eof $4.0 \; m^{3}$ 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 sue x,ps72bb*ly;r x,cmbmerged in water. ce2*,y;m pb,7sxr lx bWhat is the tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gold yteskkj ud-1,w+rx+8is $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submari4aqtv9f br+ (4tu5ue9,bgqnel k8n* vne (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 i m fkj2 dp2h.o58l(xaxs in air and 6.86 N when it is immersed in water. What is the spe2xl2hk m(jdo xp.5a8f cific gravity of the object?

  A container of water is placed on a scale, and the scale reads 120 g. Nown/ tt;adz wj6mcw; d n-.i2 egf*8,tjm a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and lowered into the water, not tot6d,tnmte2wg/*w8; m ;af cn-jd j.izuching
the bottom of the container. What will the scale now read?

  A piece of aluminum with a mass b507tz /)rle ub glpo hwz5q(:of 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 length 12 cm and diameter 2.0 cm will just barely float in idhddsd-5 jd*8 jc+ :zwater. What i5j :idzh- *+ddcdjd s8s its mass?

  A rectangular box of negligible mass measures 5.0 m lona4xc .y n5kqe a7os-ya(lg25eg, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loaded onto the box before it sinks .k yaysa2n5o l 5-xe4qca(e7 gin 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 1ged4ap) jn1oo i,2idk na c sk3-y7:gbeneath the surface of the water. The weight of the displaced water is 2000 N. : dnkpyn 3a d12,sojo - iaice)kgg471What is the weight of the object?

  A solid object floats in water with three-fourths of iq(0nl+rw7w gtdbf+ ) ) hzcz(rts volume beneath the surface. What is the object's density+hcgww 0fn )r7zlt(b+qzdr ()?

  A 200-N object floats with gqqea,c x/8 -h9 s-at8rtpz- uh+ jgr)three-fourths of its volume beneath the surface of the water. What is the buoyan ,raa h gxh -jcq+t8p9/gq-8)user zt-t force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What is bk;wy-;:qt2e*e ebeegtxrqnm, .j, , the minimum area of the floe that will just support the bear in saltwater of specific gravity 1.03? The specific gravity of ice is 0.98b.* y bq, t2:te-qj,krmwngee; eex;,.

  Liquid flows through a pipe of diameter 3.0 cm at 2.0 m/s. Find the 5a3n9emwdoar z9 zd97flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1k7vf,uf dle(/fb)n *wr k/vs..0 m/s. There is a 2.0 cm diameter restriction in the line. Wha.dr b/k ffkv*vn7,(w u)elfs/t is the velocity in this restriction?

  Water flows at 12 m/s in a horfc z60gre d9wi.r s-s0izontal 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 drinking fountx 3i ,.bo.z*ipochu8tain with 300 kPa, if the fountain is 30.0 m cpx. hio but.8z,o*3 iabove the pump?

  A hole of radius 1.0 mm occurs in the bottom of a 2s h3sc,5lcwtwater storage tank that holds water at a depth of 15 m. At what rate will water flow out of5s sw3lt,c ch2 the hole?

  Water flows through a horizontal pipe of croskc i.r8t.e f9rs-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 would it take to c6 9xvl-iu9:mxw3qcg w ret,ns) 3si/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 neglect any drag effects-x sl,m9rx g6nii3wve/:q s9c wtcu 3) due to the upper part of the funnel.

  Suppose that the build-up of fatty tissue on pge+c4eu 9i; ythe wall of an artery decreased the radius by 10%. By how;g+4ui y9cpe e much would 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 has twicepq0z. 29okm *dl7 nnlu the diameter of tube B. If water rises 24 cm in tube A, how high wn0*u ml okpzd. nq92l7ill it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will water rise in o2c auy)5 c+o h2:3qi0xmbepb a capillary tube of diameter 1.2xe:+b50 a o icm3pco2)by2uq h mm?

  232

  To what height would water at 0 degree Celsius rise in a glass cap +2 tb ;fkvyl: dig7zd+ept+/uo u50owillary tube with a diameterfydk l t+z+b;d/+7iowu pu g2:5o0vte of
0.50 mm?

  A narrow tube is placed vert j5)3i0xc suejically in a pan 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 of some soap. What happens to the height of the lique)sui0x j5jc 3id column in the tube?

  Consider a rectangular frame of length 0.120 m a((+ gq/4wvovh6r*fxn wm)b udnd 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 *(nhw )/fmxb uv q+rdgo(6v4wmuch force does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and width 5 cm, and is bu; 1x.zuh1+casm;amlur41q cgilt 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 wusxca h1m;rlqg;+4c.1 zu1 am ork is required to move the adjustable long side so that the frame is 12 cm square?