The three common phases oh43v+n:zvl: fe zwlv65: bvk gf matter are

  Density is

  Substance A has a density m32c4c8jkzrwm-es a . 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 followin 5t4px xm5qrv7g is not a unit of pressure?

  Consider three drinkin/( joy*a( ,o yxkcwty8g glasses. All three have 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 iso j8o/y( ywtcxya,(*k 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 presag/7dwc(fo ow0f u1j /+)fsilsures inside and outside a tire called?

  When atmospheric pressure changes, what happens to the absolute pressure at thxj5bno nwe0 5nqj 1.6ke bottom.5n5 wkn10eo6bjxn qj of a pool?

  You are originally 1.0 m beneath the surface ofor6jb be(r(-tt t6v* d njjs0) a pool. If you dive to 2.0 m beneath the surface, what happenbj-ojt(6br t tvr(0sd ) 6*jens to the absolute pressure on you?

State Pascal's principlem /e:81(/j a y djb6qkqpfyt6jyu /dd/.

State Archimedes' principl6/s4 +lvmnwdw e.

  $50 \; cm^{3}$ 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 happetyv5:2,lm q86o yaz hpns t2hvt lpq,:myy86oa z5o the buoyant force on it?

  Salt water has greater density todd*d 0 o8;pdfhan fresh water. A boat floats in both fresh water and in salt water. Where is dpfdo*8dod0; the buoyant force greater on the boat?

  Salt water is more dense than fresh water. A ship floats ino5to.jmux7 /q both fresh water and salt water. Compared to the fresh water, the volume of water displaced in the salt water 7 /xj.5otq mouis

  A steel ball sinks in water but floats in a pool of mercury. 4a3e) )gxr,pemdh7mt Where is the buoyant forc7x m)pdeegar34th) m, e on the ball greater?

  A 10-kg piece of aluminum sits at the bot 5-ua 0ectk8s 0e;2fpl v5r aauu9oo*btom of a lake, right next to a 10-kg piece of lead. Which has the greater buoyou2uvta9-8ue*50cas5 0l aeo ;pkbfr ant force on it?

  A piece of iron rests on top offh-.kz v-skjuu(r3 1 k a piece of wood floating in a bathtub. If the iron is removed from the wood, what happens to thj hr(k3.-kuu-z1fks ve water level in the tub?

  A piece of wood is floating in a bathtub. A second piece of wood sits on top o8fx r29 0 ou)dws)axbjf the first piece, and does not touch the water. If the top piece is taken off and placed in the water b xdf8s )rw0axoju)92, what happens to the water level in the tub?

  Water flows through a pipe. The diameter of the pipe at pol e38s; zci7luint B is larger than at point A. Where is the speed of t8el; z i7sl3cuhe water greater?

  An ideal fluid flows at 12 m/s in a horizonta;i48xnhm o9 cwl pipe. If the pipe widens to twice its original radius, what is the flow spee9h; co4wmx8n id in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narrows to half 1wpjcbyds-ui /9f5v. its origina/p w- sub jyi5cfv.d91l radius, what is the flow speed in the narrower section?

State Bernoulli's principllv4a24 qefi9fe.

  Which one of the following is associated with the law of co - ij b*p84f )c0(dfzgink*thknservation of energy in fluids?)n pfh b4tidcz -*0fk*(k i8gj

  As the speed of a moving fluid increases, th gyw()wwz1q. xe pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at point B is larger r-pn5+ w1.6bqr msz cqthan at pointsp6 m rzrbq-c n5+qw.1 A. Where is the water pressure greatest?

  When you blow some air above a paper strip, the paper rise/lq xjkg- i7p1ur uv+d c(/j2as. This is because

  A sky diver falls through the air at terminal velocity. The for:0e:-uk2tdf4 a is9y-iwulh zce of air resistance on himd-iuwlytf :4ehu0z2sia9-k: is

  Two Styrofoam balls, of radii R and 2R, are released simultaneously from 15 a x6a)omglva tall towgom6x15 aav) ler. Which will reach the ground first?

  When a small spherical rock of radius r falls through watea e-4blgel/v/1 8jgcx r, it experiences a drag forcegj4v bg/l a8cx/e1-le $F=arv$, 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 t iggu.f-3y0c narrow pipe? That is, if you made a 10% changeic3-.g t0ufy g 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 diam lohrp287az27,fvjn u eter 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 pipe22787fnu vj zrhp,lao A is Q, what is the flow rate in pipe B?

  Two horizontal pipes have the same diameter,-;ssof9p k6da but pipe B is twice as long as pipe A. Water undergoes viscous flow in both pipes,-ds6a o k9pf;s subject to the 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 often t k ,em*s ((dxi+ pafvow3y(4bhastes 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 up(b*shmf( +ax3i dkye 4,wv(o s "physikers", this is readily explained in terms of

  When a tube of diameter d is placed in water, the water rises to a height h. If:vkmv: aib5by xrq -fsk5):v, the diameter were half as great, how high would the water vmakb r f:xb 5,-):vsi5:qvykrise?

  Certain insects, such as the water bug, are sufficiently lightweigh p m5e5-fb a62rltv3gfvmc*2y t that they can 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, bug B is twice as long, twice as wide, etc. What is the weight of bug c p6g 2tv rl*m-be 55v3ffym2aB?

  Certain insects, such as the water bug, are sufficiently lightweight th ;q(9rvqv-i vkyc1:tqat 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, ivvqt9(ckv- ;1qyq r: 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 ma*m7dm6ad cw o6ss of 30.0 g. What is i7cd* 6mw m6daots density?

  A liquid has a specific gravity of 0.357. What is its densityp 1 b;ybrtcm);?

  A brick weighs 50.0 N, and measures 30.0 cm x 10kbr9o0 *n gxje1n4g u*.0 cm x 4.00 cm. What is the maximum pressure it can exert on a horizontue0bjkg* 1 * n4gnrox9al surface?

  A person weighing 900 N is r1rw9b ,uah+g standing on snowshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarj,r (iao7 ;n9 t)mjmbk:hnqw1ine withstand at a depth of 120.0 m in ,7b qhi9o r(kn:t;j)na1wmmjthe ocean?

  A circular window of 30 cm e+f 6s.)fg wpw, s/handiameter in a submarine can withstand a maximum force 6fwg)enw. +f/sspha,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 if the absolute pressure is 300 kz ox9 *5iv(emsPa?

  What is the gauge pressure at a location 15.0 m below the surface of 8z8tka(csde(o;7d sf sea? (The density of seawater s7co (z(a8;sfkdedt 8is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below the surfpixq bz9, yq uv6f e8r*c4)elu b1:0oaace of sea? (The density of seawat,6 4)ql cfaz*iypu ro90b: 1b8ee qvuxer is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydrau-+iemzkqz(8k lic machine. The small piston has areqzei k (8mk+-za $2.0 \; cm^{2}$. 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 ao((8;ec; zwuzg0 e+h 1zqz7u n,ksyeb nd the large piston hasw(eb uq;egc8o 1 ;z +0zksuy7, (hzenz a radius of 15 cm. What force must be applied on the small piston in order to lift a car weighing 20,000 N on the large piston?

  A 13,000 N vehicle is to be lcfufy w xa6.9 :lzi3 j1bpa8o+ifted by a 25 cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm diameter pistonwja.3x1 opfz:yi+ aclu6fb98 to accomplish this?

  The small piston of a hydraulic lift has a diameter optep;j q3 np:0f 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a load of 10p je;npq:p t35,000 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 is the buoyant fw)hejw:bqf )pi nw(a:pw4a/1orce of the w)aqebpjwnw/14w( f: w):iahpater?

  An object has a volume of+fu)is 9 xc5udfr:wc( $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of sol+bgvp++jt78h41spq6mdr l z wid iron is supported by a string while submerged in water. What is thg+m wqv8 +z74dhtjrpbp+1l6se tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gold (g xq jdx-6w(lis $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarine ( gnd*seuwi-56 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 is i(td fqgqu: .a5mmersed in water. What is t.u5:t qq dg(fahe specific gravity of the object?

  A container of water is placed on a scale, and the scale reads 0qn q *k5n6s sz6e0aseueti49120 g. Now a 20-g piece o4iqesa6t9ne *50nzs 0ksu 6e qf copper (specific 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 of 1.0 kg anwq7:k6iq;4ia h1l sxp9fosm*d 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 diamewix)*lw,nl hf1a oa qt,tz13c)vp4 8h ter 2.0 cm will just barely float in water. What is its man1vl 3oq*),c zhxwt1 l8 ft ahpiw,)4ass?

  A rectangular box of negligible mass measures 5.0 m loohcor h:t82 usc9d9(j ng, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loado cou29ht8hj:s9rd(c ed 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 volum fsku.eze:k: /e beneath the surface of the water. The weight of the displaced water is 2000 N. What i fs .kk:uz:/ees the weight of the object?

  A solid object floats in water with three-fouri ;*nex *fdj5nths of its volume beneath the surface. What is thjei *fn;n 5*xde object's density?

  A 200-N object floats with three-fourths of its volume beneath thknn:sel+ he7).,(j6obiq lohe surface of the water. What is the buoyant forcjenleoohk 6hl s7in+q(b:) .,e on the object?

  A polar bear of mass 200/p zbs2 j9w:x x0b jzc2gixzl :)s.k6j kg stands on an ice floe 100 cm thick. What is the minimum area of the fj2xx/ c9)gx0:j.6zz:pbjw 2 kisb sl zloe 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 pipe of diameter 3.0 cm at 2. fx1; dif zn)v.(enr/jqy8 .ym0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. There is a 2.0 cme:v40 lhhiet, diameter restriction in the line. What is the velocity in this rht4eve i h:0l,estriction?

  Water flows at 12 m/s in a horizontal pipe with w5/r+2njjdssjve.octg-. -8lv wg 8q 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 fountain with 300( 9 vdah;az 0kvkmm-g. b)-v +kldu;xt kPa, if tvth0)l;kku dk-9.mbxad m+- ;(vv zg ahe fountain is 30.0 m above the pump?

  A hole of radius 1.0 mm clo ,naa m;8ld29bg b5occurs in the bottom of a water storage tank that holds water at a depth of 15 m. At ,agbdno5al clm 9b8;2 what rate will water flow out of the hole?

  Water flows through a horizontal pipe of cross-sexd bpy+bk-aq -: j6dp2ctional 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 .+ yd0a0xz yids-llaxzxh:e06b w+9s 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 d0zy- a9l+w+xi :xh00d bz6xayess.l 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 arter rz8,e0ul d/ize (3mqpy decreased the radius by 10%. By how much would the pressure ppd/0 mz3eq ,uli8 re(zrovided by the heart have to be increased to maintain a constant blood flow?

  Two narrow tubes are placed insiwq:;xlkomm vh : ,/mm.i:h+ a pan of water. Tube A has twice the diameter of tube B. If water rises 24 cm in tub.mik:mw+o; hvi:/m, :h mx qsle A, how high will it rise in tube B?

  The surface tension of water is 0.073 N/mpg ()ez0z-x7dtao / ym. How high will water rise in a capillary tube of diameter -z( aeyptm/z gd7)0xo 1.2 mm?

  232

  To what height would water at 0 degreolwpw8x1 r7g3yk; n;p e Celsius rise in a glass capillary tube with a diap7ko; yxwrn w81l3;g pmeter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and the 0 kf4y4c xpky(lxt2h 4water 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 liquid column in the tube4xy(0x 4tfkhc p2y l4k?

  Consider a rectangular frame of length 0.120 m and width 0.600 m with a soap fiss-cq9 1l*9c-m/ o tyoatxz.v( ;hw holm formed within its confined area. If the surface(m-t.9h as1sochq/zox- c9* ;wy ovl t 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 frae umy.cznd fb170(9xy:v 5de sme has length 12 cm and width 5 cm, and is built in such a way that one of the longer sb7e9y5xvn(0 y. csumde:dz 1fides 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?