The three common phases of matteb (al1mb o2 f ,8i*u+rdw6nmiwr are

  Density is

  Substance A has a densi h1c afqu-5vv0ty 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 not a unit ocon1khdtmqf4(1 g lya c9- *l8f pressure?

  Consider three drinking glasses. All three have the same area base, and all11atm1au.f z q 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 ht zau1f1aq .m1as the greatest liquid pressure at the bottom?

  What is the differenc/vt:;kf zt+j ru+cl ;ti*-k3wkv+xr ue between the pressures inside and outside a tire called?

  When atmospheric pressure changes, what happens to t3;ulf(94 rsh)z od vyyhe absolute pressure at the bohsodl(z9 ;vr 4yuyf3) ttom of a pool?

  You are originally 1.0 m beneath the surface of a pool. If you dive to 2.0 m b9j x8w/,c hi.o1*ajf(r+ ml ofq*n gdqeneath the surface, what hadcja 1o xhf/8(9n q*j.i*,m+rlfgqwoppens to the absolute pressure on you?

State Pascal's principl l*tccwb1y l7 bg0f8k:e.

State Archimedes' prqr:w dvj/f)rv-ozl 97inciple.

  $50 \; cm^{3}$ 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, what happens t u vze4:q,7a:pn5 t.nirb 5ff -um6sguas*n(mo the bua.i5e:bnsuz - 6sn4qt u7amrmn ,gf *(:5pfuvoyant force on it?

  Salt water has greater density than fresh water. A beq7 u0(asaoj+1 lzyw( oat floats in both fresh water and in salt water. Where is the buoyant force greater on the b(usqza0+a1j( lyo7ew oat?

  Salt water is more dense than fresh wgtp: /bi/ nbb/ater. A ship floats in both fresh water and salt water. Compared to the fresh water, the volume o /bt/:ibn/b gpf water displaced in the salt water is

  A steel ball sinks in water but floats in a pool of mercury. r1r7j4ks8 (sb o.i5oww5j lz dvl 3r.jWhere is the buoyant forclr s47(.8k.r5bs3iwv1w j l oj5rjdzoe on the ball greater?

  A 10-kg piece of aluminum sits ap0fydrq (q5wg+upuuz,:a 5(lt the bottom of a lake, right next to a 10-kg piecey,u 5p0 z qp q(alruu5g(d:fw+ of lead. Which has the greater buoyant force on it?

  A piece of iron rests on top ofo97+ cww lt(ge a piece of wood floating in a bathtub. If the iron is removed from the wood, what happens to the water level in9wocl 7+(wetg the tub?

  A piece of wood is floating in a bathtub. A second piece of wood sits onxhyzh)3.tvj2ja)cu: jlep - +gm 8*no top of the first piece, and does not touch the water. 8zl)ce2h a*pgjj.ju3mhtv x:o -n+)y 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 iss*32 turs*s :yb;sn bn larger than at point A. Where is the spb*s:3 y2n;utsrsns*beed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. 2yoo aguivjm(n58-;zk+l oht e;..om+q 0dlj If the pipe widens to twice its original radius, what 5jyoigd0(o;mul .lm+ k;.-hj q2zo e o +tnv8ais the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narrows to h s ns+wmxp5f kz66 +zy*p*3jbbxysh*2alf its original radius, what is the flow speed in the narrower sectioysh *w+*z6p *3 bs6m5f2ynj xxb zk+spn?

State Bernoulli's prinz bj2eio3 kc ),vyv/6xciple.

  Which one of the following is associated with the law of conservation of (zh(h 5v asw:iab9p+lenergy in f wh:pi lzasv +(9a5(hbluids?

  As the speed of a moving fluid increases, tw1c b;,a5h rcuhe pressure in the fluid

  Water flows through a pipe.zd 59b0 pzf2sh h0ga5ae-+b btah1)jp The diameter of the pipe at point B is larger than at point A. Where is the water presba2 a)1ajhe -59+bd0sp5zfp h zg thb0sure greatest?

  When you blow some aivx0t o m,9u gi+q pdem8t(vpg+qp+5,oob,k 7dr above a paper strip, the paper rises. This is because

  A sky diver falls through th d)kewdx), :pee air at terminal velocity. The force of air resistance on himew,)edp:d k)x is

  Two Styrofoam balls, of radii R and 2R, are released simultaneously.a/vc9( -8 ub agydlbh from a tall tower. Which will re.b ub8y9 caval(-hd/gach the ground first?

  When a small spherical rock of radius r falls through water, it experiences7f3 2m/y zst)rwf po;n a drag forcezoff;r2n7 y)/ s twm3p $F=arv$, 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 th kl 3(dupf;6tefd0e(ge flow of fluid through a narrow pipe? That is, if you made a 10% change in each of the quantities below, which we(kf0ud;l63(fe pgtd ould cause the greatest change in the flow rate?

  Two horizontal pipes are the same length, but pipe B has tw 6)l,ju oo p 4fp*joaf-k)9+ gqt0rscfice 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 pipe B?+)-q rt69jp c) o ful*oskpa0oj,f4fg

  Two horizontal pipes havz xaf yr0myha*d5 ;f+4e 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;afm zdhr+*4 5axfy y0 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" tasgw3i9c*ia ob.x c5;n yte seems to be associated with oil spreading out all over the surface of the soup, instead of staying in little globules. T wbgi3x n9*a5o;c.iyco us "physikers", this is readily explained in terms of

  When a tube of diameter d is placeee5,qq h6gg q3d in water, the water rises to a height h. If the diameter were half as great, how high would the eegqhgq53,q6water rise?

  Certain insects, such as the water bug, are sufficiently lig t h/)r;zap56;jyvk/ ej:u fqghtweight that they can run on;g5 ;p)j eyatzk/vqhfu:r j/6 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, twice as wide, etc. What is the weight of bug B?

  Certain insects, such as the water bug, are su)s7lkg p )q9nlfficiently 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. Sgs)9l7nl qpk )uppose 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 cm x 4.00 cm has a mass of 30.vqn)8x2 ;wn 6lv2 zvnk0 g. What is its dk26vnqx ) lvnz 2vn8w;ensity?

  A liquid has a specifzy:u8m+s dbn3 ic gravity of 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 c7s3myl ,sx(sz)u v sl/ew dm9)m x 10.0 cm x 4.00 cm. What is the maximum pressure it can exes9md s/ew ,l7m z( ssl)v3uxy)rt on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each snowshoe ht/yqf mjn fa-fr+j71 3as area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand at a depth of 1+rygx 4ly)(qwnk*h)8b fuc u 220.0 m in b w2)+*gunrx8qyc kl)u(fh4y the ocean?

  A circular window of 30 cm diameter in a submarine c;ci)lb) onh od x :r7;zah.4mean withstand a maximum force of h;rz);c:7 nod4emlha )x. iob$5.20 \times 10^{5} \; N$. 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 abso nr3ow i -gh6w3edg/x3lute pressure is 300 kPa?

  What is the gauge presse 9/uid8u9o1s til6ho .o 4+;jhzhtzyure at a location 15.0 m below the surface of sea? (The density of seawater iu9h8s 9 ;yh +io d64uzoe1lto/.jh izts $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a k l,id-m zso9)wiz02tlocation 15.0 m below the surface of sea? (The densityd)it-z ,2s9w o0kmilz of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small pisty1e-r55vi 94cnupv (: sddzrlon of a hydraulic machine. The small piston hurv-:4dpe1 vdszy55rc li 9n( as 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 and b/h eky69t*re/vq+u k the large piston has a radius of 15 cm. What force must be applied on the small erk+t6 h//ye9uqbv*k piston in 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 diamete0iqby zxt39n7c q4vor7c//rrr hydraulic piston. What force needs to be applied to a 5.0 cm diamevtny ozq7r9i0 / /3 c4x7bcrqrter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter of 8.0 cm, ac4f-lz me1nx 4nd its large piston has ae4cxl 1mn-f4 z 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 air and 30 N in w- xe 63z bumah.1nzx pe2q.j mom657psater. What is the buoyant force of the water eb7 ame1h-zs 5qxm .n3z2 umppj6.ox6?

  An object has a volu pw0up3numd255 f qy5gr5f 6nnme 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 sui5(sp5mfc o(s3c 9ur opported by a string while submerged in water. What is3(so um9i5o5sc crpf( the tension in the string? (The specific gravity of iron is 7.86.)

  If the density of golt x/rjv/ ab46dd 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 (densz ypq5,ri;h3dity = $7.8 \times 10^3 \; kg/m^{3}$) 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 N when it is immersed xqrkv1qy/; 8r in water. What is the specific gravity ovqx1qry;/ 8r kf the object?

  A container of water is placed on a scale, and the scale reads 1209v)f fc 2rby2e-(dj qz g. Now a 20-g piece of copper (specificb y qz2)rfvjdef(92 -c 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 of55wafnzl,4qqd3 zl+go f 9l*q 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 diametej9 q4le1k j7gir 2.0 cm will just barely float in water. What is its 9gjkejl 7 1qi4mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0 m wide, and 0.50 7vpmt o* vue).m o,x)mm high. Hmv)uv.moe, p7 )o*mxt ow 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 surface of the water. The w b8 c/)zdstsoa0 ew8r2eight of the displaced water is 2000 N. What is the wei2)8ct 0 zsdr8a s/bwoeght of the object?

  A solid object floats in water with three-fourths of its volume beneath the sufn4rbvy54c.a rface. What is th4n5 b4 rvy.face object's density?

  A 200-N object floats with three-fourths of its volume beneath the surfaqd 0x3e.npf-lr j p;3jhvw a*1ce of the water. What is the buoyant force on 1ew03 plnj-p*a. x3v;rf dqjhthe object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. Whaqng v,cf1wp;n)).uol t is the minimum area of the floe that will just support the bear in salt1qlpv. o,)fcn gu;wn) water 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 fl+dgs)e jsyncgx5; hnjhkfe8n37(:y 2 ow rate.

  Liquid flows through a 4.0 cm diam7o z d ,mugno,tl52sd+fwv2o8d :zv 7meter pipe at 1.0 m/s. There is a 2.0 cm diameter restriction in the line. What is the velocity in this restrnvmtd5dsvz+fgdu:7lo2 7owmo, , 82ziction?

  Water flows at 12 m/s in a jqt93j 8isyj7horizontal 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 fountainsnne e,b-i7)c with 300 kPa, if b )secn, en-i7the fountain is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of a water storage tank that holds2o bbcnm 6w6mol+1ic. water at a depth of 15 m. At what rate will water flow out of6+6ino.cbl21o cbwmm the hole?

  Water flows through a horizontal gwd0 chjzl-qaw;4p 1 btc+ax b0k4*l6pipe 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 lod4ujk zo+5ib5ng would 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 s4+i55 udkzobjurface 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 l8q26:4p/sip)e yk uoeefh1yd pf8 9m fatty tissue on the wall of an artery decreased the radius by 10%. By how muc io8 629s 4uepyp/8k1eqlhpf)edyfm:h 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. Tubedu * d92yw 5u9nsmpcx8 A has twice the diameter of tube B. If water rises 24 cm in d9sdu*upm8 cy9w xn52tube A, how high will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will water rise in1f9fgvvl yuw 0 fn(7m) a capillary tube of diamvwf1f(vn 7mg ) y9lu0feter 1.2 mm?

  232

  To what height would water at 0 degree Celsz,aia(su8jng+ -shi9ius rise in a glass capillary tube with a diamet9h a+u i,ain(8-zjg sser of
0.50 mm?

  A narrow tube is plas:z v +i*nna2bced vertically in a pan of water, and the water rises in the tube to 4.0 cm above the level of the pan. The surfacev +* nb:asizn2 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 width 0.600 m with a sodl7f 7 3femqzsm/vl n ug:2ib 88;rtd9ap film formed within its confined area. If the surface tension of sgdf:v7li92q/zmf end;ur ml 8s7t 8b3oapy 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 cm, +c om8l qgp4bhvm1t0 .etf:k.and is built in such a way that one of thep+.q:hm.vbfmo8 4t gtckl0e1 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?