The three common phases of mattag3)uapz j d3rm+ b m.9u+chg2er are

  Density is

  Substance A has a density-ob9x4rj 8uf(79j cpaoj sh +w 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 not5lh6 k;m10hki mvdzr. a unit of pressure?

  Consider three drinking(1 vy *7op:f l6 tecjc9o15gznrm5yw m glasses. All three have the same area base, and all three are filled to 1vno 5(lt* z pc79jygcym5 rom6fwe1: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 has the greatest liquid pressure at the bottom?

  What is the difference between the pressures inside and outside jo-6 d( uml/l3. raudaa tire called?

  When atmospheric pressure chanfjjn6 z9nq3,f,nk(jf+a 9 8i tj4v zgnges, what happens to the absolute pressure at the bottotnk9 v86j9(3zjna,zj + 4fiffjgqn,n m of a pool?

  You are originally 1.0 m beneath the /1nvd:yewqcgvr 72to i76q7o surface of a pool. If you dive to 2.0 m beneath the surface, what happens to the absolute pressure on g 1r7vowy/6tq7o :en7q d2icvyou?

State Pascal's principle.0x(d 2m2 /dib.0nm +qyyiiekr

State Archimedes' prinp8rhqz(9( qynciple.

  $50 \; cm^{3}$ 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,kq9jnx3ce,gez-;d25 6 p mj rg what happens to the b 9-x,z3dkege;m jn5pc6 jqr2guoyant force on it?

  Salt water has greater density thh2 b)9zn*(sfoyai 6wd an fresh water. A boat floats in both fresh water and in salt water. Where is the buoyant force greater on the boat?zb2)hdi n( y9f *a6swo

  Salt water is more dense t hj-/,1ogysxgm n j4k0han fresh water. A ship floats in both fresh water ano,m gn0jhk/jg1x- 4 ysd salt water. Compared to the fresh water, the volume of water displaced in the salt water is

  A steel ball sinks in water but floats in a pool of mercu0d9 3igav 7reiry. Where is the buoyan ed vgr73i90ait force on the ball greater?

  A 10-kg piece of aluminum sits at the bottom of a lake:vo(lh 8 ux6ku, right next to a 10-kg piece of lead. Which has the greater buoyant u86 xku:l(v hoforce on it?

  A piece of iron rests on top gsn 8 6kh2:wzsof a piece of wood floating in a bathtub. If the iron is removed from the wood, what happens to the water level in the tu2h6gs : n8skzwb?

  A piece of wood is floating in a bathtub. A second piece ofeb9zh4 qkp7gy .l4s5kg1xqcdg*vo ag: 21gr 8 wood sits on top of th 9 g42eq 1qggv4xzhsgkbpc7k a.5: l*ogr1 8yde first piece, and 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 diame*kqpg 4n n7yyzo5.f,iter of the pipe at point B is larger than at point A. Where is the speed of the water greaterq5izng yfn. ykop7*4,?

  An ideal fluid flows at 12 m/s in a horizontal pipe.:udxcg45j(*6 ykp-/ thrjt jb If the pipe widens to twice its orcjpt* b:(gj-t4 hu5kdjx/yr6iginal radius, what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s inbq7jhy;2hs/5jx m s ;i a horizontal pipe. If the pipe narrows to half its original radius, what is the fl;/xj ; 2s5yis h7bqhjmow speed in the narrower section?

State Bernoulli's principl;3 nfsl4yrr egsxn + (:8ramyc9h y+w3e.

  Which one of the following is assf/:f8xuk c3 gtociated with the law of conservation of energy in fluitcff 8k3ug:x /ds?

  As the speed of a moving fluid increab;vns ftjq+10 ses, the pressure in the fluid

  Water flows through a pipe. The diameter ofm(a 1l1sd0 okvmp7b+r the pipe at point B is larger than atm(1v 0brpamo1l + 7dks point A. Where is the water pressure greatest?

  When you blow some air above a papt .kjxd+ve cg68pz4,wer strip, the paper rises. This is because

  A sky diver falls through the air at terminal velocity. The force of air res.wsc kos 7jb k.d.a44jistance on oc.jakwds4.7s.4kjb him is

  Two Styrofoam balls, of radii R and 292m bh r95y(k *uuyo 8aoylxh0R, are released simultaneously from a tall tower. Which will reach ty ulk8xb 92ua* h(yoh oy09m5rhe ground first?

  When a small spherical roc60zqx+ rpnrp;cp8 ch3k of radius r falls through water, it experiences a drag rhpq ;60p+x 8zr3cpcnforce $F=arv$, 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 tjhy3 ,;3iwqot6e.1 4 2jooaqn dcaw1p hrough a narrow pipe? That is, if you made a 10% change in eao31a3y q 1joh2 ai4cpowt;w .d j,n6qech 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 thel r,:o)z(bddmprd w+)b 5tg y2 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 ism:(yr rb ) bt+2dld,dz o5pw)g Q, what is the flow rate in pipe B?

  Two horizontal pipes have the same diameter, but pipe B is twicetg mfx2t0l:m4 as long as pipe A. Water undergoes viscous lxfmt24tg : 0mflow 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 flow rate in pipe A?

  When soup gets cold, it often tastes greasy. Thiq6, v94a5h vffpqu b7x2 r(bmcs "greasy" taste seems to be associatebumvf7b5fprxq(av 4 h,62 q9cd with oil spreading out all over the surface of the soup, instead of staying in little globules. To us "physikers", this is readily explained in terms of

  When a tube of diameter d is j 8y83jnb(ri(5o dx 2o4-sto0calwneplaced in water, the water rises to a height h. If the diameter were half as great, how high would the water risrcxnn( jl( -bto3si5jw 0o8eyd 482oae?

  Certain insects, such as the water bug, are sufficiently lightwei: i9s)ev+c.ox0qzku:ex0 :/pb )suer,qc ya dght 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 b::sy x) ubd0 )zqx e0arepos:ke/ +ciu,9vqc.ig 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 sufficien*jd5r n:n 4o7kj yu 6ye;l1,abxjto0 wtly 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 fe06*jj o;y ,1d ox5ayulkr: 4n7wjb nteet 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 dimen.0sn)p l4oe rzsions 2.00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. What is its densitynolsz ) r0p.4e?

  A liquid has a specific gravity of ygfm+j/*cl9 7r1 dlov 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30 ,hy11t7tyuc -fca 6yo+pwn7r.0 cm x 10.0 cm x 4.00 cm. What is the maximh1 +-t yy f pnouwr6c,t7c1a7yum pressure it can exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. b u(ld3a6g0ec Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand1eu6 ,akxhpt1 at a depth of 120.0 m in 16ptk, h1euxa the ocean?

  A circular window of 30 cm diameter in a submarine can withdnt.r 4 zf,-rustand a maximum force .df r-nru4 ,tzof $5.20 \times 10^{5} \; N$. 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 i8enm+ t: tld7js 300 kPa?

  What is the gauge pressure at a location 15.0 m below the surface of seay0zp 1n)3th7r9c xw;jn,jfr q? (The density of seawaterpjx ,r9jw)nz0qyn7hr tf; 1 c3 is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pres0 /r sem+rj3frenzf;kv e0.w 6sure at a location 15.0 m below the surface of sea? (The density fjn z k rm.se fwe;e3r+0rv/06of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machine. The small piw) cqrm9wz a v adc2od-nri4ga: 0ke-o/ wa94+ston44wzna-i2r-owc: + q wcdgr /daoma09e va k9) 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 and the la/p6b4k + ug(p)hos*julw j2worge piston has a radius of 15 c+6us (h)ujjpg2* kol 4bow pw/m. 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 t+.kmec /5ibfy o be lifted by a 25 cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm diameter piston to accfk5y b ic.e/+momplish this?

  The small piston of a hydraulic lift has a diameter of 8.0 cm, and its l+ wa .)+ug 2nx.f4a5ozld cqxaarge piston has a diameter of 40 cm. The lift raises a+o 5aax .+xfln za24.wqduc)g 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 rg4)n5;.apq3q iivy sfu,ii.water. What is the buoyant force of tgaq.piu5i ) vsyirf3,;nq i.4he water?

  An object has a volume o**) dk3ct:gg iqcj6u ff $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron )b.eoeg63xy bay j90ris supported by a string while submerged in water. What is the tensio)9o0a byeybgrje .3x6n in the string? (The specific gravity of iron is 7.86.)

  If the density of gold drl)tgq 2x 89mw xg)+xis $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarine (den5+eh6* f2wndab-t6goey eg tq5zp,7r sity = $7.8 \times 10^3 \; kg/m^{3}$) 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 whemvsm;7/p 3vkv n it is in air and 6.86 N when it is immersed in water. What is thvv kps3/7mv;m e specific gravity of the object?

  A container of water is placed on a vf6 zonh5j6i- fww1,qscale, and the scale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and lowered into the w6, hvzi 5njq-1wwffo6 ater, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum with a mass of 1.0 kg and denx v5a( uwhfu2(sity 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 diai 0 znc5mgk2oh 6h0n)gmeter 2.0 cm will just barely float in water.0h6 h5g 20cnomn )ikgz What is its mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0 m widec z+f 2f(a9 :qw,al pftgi,l6s, and 0.50 m high. How many kilogramfl zga6f (2,cspl:q+ awt9,ifs 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 -judf wf*k3eqqb l5*+weight of the displaced water is 2000 N. What is the b 35 euwd*f+jlk- q*fqweight of the object?

  A solid object floats in water with three-fourths of(p; (jplkzcio40uhh c r s.ihu)kf1+/ its volume beneath the surface. W rl(kup4is/(j;ui fzh10)c h.+ckpho hat is the object's density?

  A 200-N object floats with three-fourths of its volume be e bb8rc nel7, 0br9w73rsvh*vneath the surface of the water. What is the buoyant s7 7vhebr w9 b0n,vcrlb*8e3r force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. Wuay7m 30 rfky,hat is the minimum area of the floe t u,7y3yma f0rkhat 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. Find the flow ro-v7 4b7tiq jl6ss/xxate.

  Liquid flows through a 4.0 cm diameter pipe at 1.*d s*pv 0ux w7jz3r*aadcl8v30 m/s. There is a 2.0 cm diameter restriction in the line. What is the vecdjuvrp80zw*a*7l 3vs xd3 *alocity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with a59bg:q6j/tg ji+ z4ad:mbyvs 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 i5lfg n97h5 ofmt take for a pump to supply a drinking fountain with 300 kPa, if the fountain is 309ngohmf75f 5 l.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottomwzju,, k nn3o6 of a water storage tank that holds water at a depth of 15 m. At what rate will waten j,no3zuk w,6r flow out of the hole?

  Water flows through a horizontal6pxef8hg 5v5u,gl h6 22lepjr pipe 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. ac unxzqrz5 i9,)ub;w -j hr4;How long 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 surface of the oil is kept 6 cm above the top of the neck)59rb-zaz qui h,;x nwuj4;rc, 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(+.v6wzh -0 wbw+xnh:xxrfm+gq g g 2d artery decreased the radius by 10%..- d zxw 0hg+wnv hg (+6gf:rx+2xmwbq By how much would the pressure provided by the heart have to be increased to maintain a constant blood flow?

  Two narrow tubes arejh 0w to3rt7scw/ 8mu* placed in a pan of water. Tube A has twice the diameter of tube B. If waosc*ur/83tmwwj th0 7 ter rises 24 cm in tube A, how high will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will water rise in a c f.5z,dd:u8eljnmd-f 3m,dsa+klr+l apillary tube of diameter md+-lud a ef:d ,,krdn3l8z+5 fjm.ls 1.2 mm?

  232

  To what height would water at 0 degre-v11h tnill+b e Celsius rise in a glass capillary tube with ahbll v1tin+-1 diameter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and the water 7):3kpw ufbgy k/lm5p 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. Whwgkpk3p7)/ 5mbly:fu at 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 soap fil . ,hpiw7bb nk01 18vlfeirhx:k .jx*gm formed within its confined area. If the surface tension of soapy water is 0.0260 N/m, how much force does thkkh:el78xp0bj1.r1h,w if.xbvg i*ne soap film exert on the 0.600 m side?

  An adjustable rectanhf4tlr+he vc9 9xv (2mgular frame has length 12 cm and width 5 cm, and is built 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 work isf tv h(ve2 9xrlc9+hm4 required to move the adjustable long side so that the frame is 12 cm square?