The three common phases of matter arey0xvrk7 xfe/ 1hvuz1 ;

  Density is

  Substance A has a densitybg p;7sg 6p,wv 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 n; 8nsztg-0e//1/khaaf tqpo not a unit of pressure?

  Consider three drinking glasses. All three have th or hfjsw/1fda8, ha/1e 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 narrower at the top than at the bottom, and so holds less water than A. Which glasw1ofa d/raj, f/ h18shs has the greatest liquid pressure at the bottom?

  What is the difference between the pressr4 zigg+oy).dures inside and outside a tire called?

  When atmospheric pressure changes, what happens 7:(fd-d uasum6ax xa 8to the absolute pressure at the bottom o8ax u(a dm-:f6sxu7adf a pool?

  You are originally 1.0 m benecye8ghqd8sex-ly/:*7 vx:ikath the surface of a pool. If you dive to 2.0 m beneath the surfa8evsk:- 8yg l hqiey*/c: dxx7ce, what happens to the absolute pressure on you?

State Pascal's principle6:ovxnzm 1+lwb5 v2o xkno03i.

State Archimedes' principletr oa 9aa;u86en6m1jec0x vq g00(gpt.

  $50 \; cm^{3}$ 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 constanttq4l7wxugzz)+ : lz- p density, what happens to the buoyanx zq7 +g)-:wzluzptl4t force on it?

  Salt water has greater density than fresh water. A boat floa, gzegpz n jeoh-9o, qw)d,d5+ts in both fresh water and in salt water. Where is the buoyant fdopn, g w-zdzg,qhj+ o,e9e )5orce greater on the boat?

  Salt water is more dense than fresh water. A shipo9ra8g 0esmdy/1azrmd, a x3- floats in both fresh water and salt e/ 0arax,8g1-y3d oamszdm9r water. Compared to the fresh water, the volume of water displaced in the salt water is

  A steel ball sinks in6 w8 wfocdr*7,8cqtkvsf h2h- water but floats in a pool of mercury. Where is the buoyant force on the bal887o k 2 tcsqrcf6wwf-h,*hv dl greater?

  A 10-kg piece of aluminum sits at the bottom of a.p tk3f,zfm; q+llh ,x lake, right next to a 10-kg piz,3lp+t ,mqf xh.l k;fece of lead. Which has the greater buoyant force on it?

  A piece of iron restv. 1eqhcycc7.bkwz(cie.+6: aerp+e s on top 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 y6kz+c.b1:pc7.(. qa er ee hcewvi+c tub?

  A piece of wood is floating in a bathtub. A seconz :s 1zpg:b:ai/28jr/y l7k;mg hgptxd piece of wood sits on top of the first piece, anz: g//k2:8 ;l1xggpriya:m bzpt7jshd does 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 diaive o46xy)nrgxj6t55f ,h3t fmeter of the pipe at point B is larger than at point A. Where is the speed of the water greate4,rjf6 h 6ye5i)vxtnofg3 5 txr?

  An ideal fluid flows at 12 m/k 1ubb;0i 8yx7fjh -kts in a horizontal pipe. If the pipe widens to twice its original radius, wha7kf-bxb8hy k iu1;j0tt is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narrows to ha2i:own kxabqh0dto7z8pnq u7.7/(v rlf its original radius, what is the flow speed in the narrower wrhid(q8akt /z:xb7 0pnvo .2oq7u n7section?

State Bernoulli's principle.fz u;y1v5s :jo

  Which one of the following is associated with the law of conservatifg gwfi :+gfl4s6,02sy4adg t on of energy in2 wg40 6,:astl g4gfg df+fysi fluids?

  As the speed of a moving fluid increases, the pressure ie6qou g bag+jpy(bkq3n 8)2(s n the fluid

  Water flows through a pipe. The diameter ofs)baif9. 2chw the pipe at point B is larger than at point A. Wherea.i2f w9hc)b s is the water pressure greatest?

  When you blow some air above a paper strip, the papkhnts 3zk/x6az*p +s4:9(rtr .ryz ui er rises. This is because

  A sky diver falls through the air at terminal veloci z,qqy1qqh(b+dgb d)5ty. The force of air resistady+dbh zqq(q gq51b), nce on him is

  Two Styrofoam balls, of radii R and 2R, are rele.s;+ mi:z e.i/hbk8*lt4zz gk et zg7jased simultaneously from a tall tower. Whicz;lzgeb tj .i./8:z+tmzk e7ks* hg4ih will reach the ground first?

  When a small sphericalot2 .0-mmzewch,c j48) bypaa rock of radius r falls through water, it experiences a drag forcechz,2)owm08ya t4a - p.ebjmc $F=arv$, 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 throubb/clk+12 haogh a narrow pipe? That is, if you made a 2a + bh1kc/olb10% change in each of the quantities below, which would cause the greatest change in the flow rate?

  Two horizontal pipes are the sabjyat xsx5 v ,f2. q8.f1fw)jqme length, but pipe B has twice the diameter of pipe A. Water undergoes,j821jvy.t f x.f5bxq qa)fws 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?

  Two horizontal pipes have the same diameter, but pipe)o u 7.t,mwn.1z0-uq vjvlfpt B is twice as long as 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 pipepwt v.1vl,f um t7 0.zuq-ojn) B is Q, what is the flow rate in pipe A?

  When soup gets cold, it often 88h bop vw)68rlhf21x jre4;(kq qxwqtastes 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 "physikersq8wqxerk)rf2bx4 1w l6jqv8(p; ohh8", this is readily explained in terms of

  When a tube of diameter d is placed iev/e2lh.yr:ak 8o;lv kqcqb9t7 4 su;n water, the water rises to a height h. If the diameter were half as great, how high would the wa 74r; :qa q; oh.vkbct8klluv9s ey2/eter rise?

  Certain insects, such as the water bug, are sufficiently lightwejuh5o2 b6fjc)ight that they can run on top of water without breaking the surface tension. Whjof )u26j5cbater 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 thb cv (exiiu7x1( 2.pt kjzh:m1e water bug, are sufficiently lightweight that they can run on top of wat72k. j(bx:1xmueiihzpc (tv1 er 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 feet of bug B?

  A plastic block of dimensiow;.fym gq(*, j r79bzacanr1nrp*m1 vns 2.00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. What is its density an9r1r ;pzyqf1(jamr*c*g. nm wvb,7?

  A liquid has a specific gravitvi se732dbip u0ji*1jy of 0.357. What is its density?

  A brick weighs 50.0 N, and m2 wfz8d ris.i-easures 30.0 cm x 10.0 cm x 4.00 cm. What is the maximum pressure it can exer.-d8iiw sfr 2zt on a horizontal surface?

  A person weighing 900 N is standingxq+swq(yql0i ki l/zn y,73- p2 zb/hi on snowshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (abs(oq:rz e.kku,v)q c-k olute) must a submarine withstand at a depth of 120.0 m in the ocee.zo):q(qv r ,kcuk-kan?

  A circular window of 30 cm diameter in a submarine can withstand a maximum forc bd czk8(o ,:fqo3nwx-e o,o3znk: q-( d ocbx8fwf $5.20 \times 10^{5} \; N$. 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 absolu 9mfugb30 sd9fte pressure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below the surface of se7iagm 9x( w;1qbo,6pq wjz9lqxj*t-va? (The density o*jvxo zb-j mqiw (9p;la ,9tqw617gq xf seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a lo-8djd: rb *xsscation 15.0 m below the surface of sea? (The density of seawater :-*r8sdb d sjxis $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the smal,s ljko0p, qq7tx;:db :;r sdul piston of a hydraulic machine. The small piston hasskdtlpdro;,u;0sbx7q :q, :j 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 lihohpw8ayqa+ vm,+4 k 8ft, 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 order to lift a car weighing 20,000 N +8,a8pmqy+w av h4 hkoon the large piston?

  A 13,000 N vehicle is to be lifted by a 25 2hi mxsg ,ok.oz- p3j:ks(m x4cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm diameter piston to accsmm(-.:i3gk x,o p4k2zj h xsoomplish this?

  The small piston of a hydraulic lift has a diameter of 8dyry1mok00m c ezo.1 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a load of 0od1.k8e oymm1cy z0r 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 a-o wb455 dltude hlonja,/ 6q,ir and 30 N in water. What is the buoyant force of the water4j55 qodu dh6-t ea l,w/bo,nl?

  An object has a volumv3q(c+j lrj p,8;ug(tmo5xkn e 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 inck qjxqz x 3i73l6ltq5: b7a*z k,f*zs supported by a string while submerged in water. What is the tension in the string? (The specific gravity of iron *lf :,x5*q7kbk z lcqzx76zq3ja3int is 7.86.)

  If the density of goldfno;iz-q/ 6s u 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 submar,hwui1/8qc .x ic/ uxyine (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 6.86 N when it i+ yw q 6iet9)slh1wd:mh z5aoq (z8.rqs immersed in water. Wham:ws leq9ty.qd 5hr wh(6iqao z+81)zt is the specific gravity of the object?

  A container of water is placed on lx,e9)+m)bj n1ohz y d*sc* usa scale, and the scale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread d)1h cul**sxymjbns+,e9) zoand lowered into the water, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum w2 y :xvk5 ik *vifn-+hekw:li;ith a mass 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 barel ; xwxafr v4teb5ld0;7y float in water. What ie x; f5twvbxd 0r74;als its mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0 m wide, and 0.50 mf lc : /ac60.t5 asl z0osnf2)riels3w high. How many kilograms of mass can be loaded onto the box before it sinks in a lake0l3aci ff:tn5/e 062 o)w lzalsscr.s ?

  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 ofup9ln7rw2u7(d hxv,y the water. The weight of the displaced water is 2000 N. What is the weight of the object7 d2l v9(nyuxrhwu7, p?

  A solid object floats in water with three-fourths of its vuge: 3nd;hw l+olume beneath the surfwn+ :hed;u3lg ace. What is the object's density?

  A 200-N object floats with thi ;cnv/ s 9ciuoau5b,8ree-fourths of its volume beneath the surface of theboc; cu,sinu9v 5ia8 / water. What is the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. W5k dkn8tmwaa3l;72 johat is the minimum area of the floe thota27a dk3;5kjm8 wlnat will just support the bear in saltwater 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.u 0a g*8:dy;1afa* vwmwicc; x Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. There vh ox)20cth xlv-d0jq;h:y p1is a 2.0 cm diameter restriction in the line. Wha1lx0 o 0-hcxh2)dv:qh t p;vyjt is the velocity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with a pressure.dmw 8,numms*; cnp(bpw** 29yeimr q 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 drinht pnu8ay7a6crv3rx ..ppl3)king fountain with 300 kPa, if the fountain is 30.0 m above the83.)u6 y3val nap rch7p.rt px pump?

  A hole of radius 1.0 mm occurs in the bottom of a water storage ta *4.saq)t: c8boiiq .wq a6bplnk that holds water at a depth of 15 m. Ais )6aowical :q4.q*p.qt8 bbt what rate will water flow out of the hole?

  Water flows through a horizontal pipe of l k hypon o0k*g*jwu6/:trb du6n g5*3cross-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 pour 4 ,dmti4 .mw13svi8t2 ,sz gyro.0 L of oi 4t2iy,m318.zo v mdwrsg ist,l 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 due to the upper part of the funnel.

  Suppose that the build-up of fatty tissue on the wall of an artery de wjux8wu(5,;h9qe tag creased the radius by 10%. By how much would the pressure provided by the heart have to be increased to maaguw t;8(quxh, 5e9j wintain a constant blood flow?

  Two narrow tubes are placed in a pan mu(t ia8x4c /ecoot9(of water. Tube A has twice the diameter of tube B. If water rises 24 cm in t9/ictuoat ox48c (e(mube A, how high will it rise in tube B?

  The surface tension of water iwcw;q*uf*zql2 26rr js 0.073 N/m. How high will water rise in a capillary tube of diameter lz;*fu*jw2 rqr6qwc 2 1.2 mm?

  232

  To what height would water at 0 degree Celsius ril373 5w r5* mseygcnztse in a glass capillary tube witm3*tz5we35cg sn rl y7h a diameter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, p5lpn*4 ynfym58vyky0nkk.. and the water rises in the tube to 4.0 cm above the le.p*vmkfky8 n5 yp.n4 k50ylnyvel 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 liquid column in the tube?

  Consider a rectangular frame of length 0.120 m and width kaa eq)y6k db3d g-7wkn,nqmq7(an +- 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 much force does the soap film exert oqdaknnn3 mg ,k(y a7k+e6)- wqqd 7ab-n the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and width 5 cy )5w-67ow- . grsekjv8b acitm, and is built in such a way th-b7 -rt cigj6waveow.)5 y k8sat 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?