The three common phases of matterho4hflr 2v:/q46ti yj are

  Density is

  Substance A has a dens3/4zc9eum s .bbxz+hl)3 go:c5c sktgity 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 vs hj s9,2-nf q.h0mhqof pressure?

  Consider three drinki2amp7*bnnnzm2k fv /4ng 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 is narrower at the top than at the bottom, and so holds less water than A. Whichpn2*nvf7ab /2zmkn 4m glass has the greatest liquid pressure at the bottom?

  What is the difference beesc.5 kry nmcrgj u3oci.- 186tween the pressures inside and outside a tire called?

  When atmospheric pres2+7b7mw joig6f,( aiu r+gmt qc5 h-ausure changes, what happens to the absolute pressure at the bottom of -w rg majuihctm+527, (ub a+qgfi76oa pool?

  You are originally 1.0 m beneath the nf 0q3 /gktky2a:s- om p: k/yl8o+igisurface of a pool. If you dive to 2.0 m beneath the surface,s i:g:y lf80tk/-iy+mko3p o2q/akgn what happens to the absolute pressure on you?

State Pascal's principle ev 7p94tiez6j.

State Archimedes' principl:gprr/ rtu-pqhny0m l cki ,0f4-4dzx5s ;ph/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 deepaa2edy) j/mpwq f /3txne/ 19her into water of constant density, what happens to the buoya93ej1wdm/nqhf xpae a/ t/y2)nt force on it?

  Salt water has greater density than fresh water. A h92 8xw5 9ejcwav1fsiboat floats in both fresh water and in salt water. Where is the buoyant fca s fwx12 wv95ehi8j9orce greater on the boat?

  Salt water is more dense than fresh water. A ship floats in both fresh water af h 0fcq(mnb19nd salt water. Compared to the freshh9c( 0fmfbq1n water, the volume of water displaced in the salt water is

  A steel ball sinks in water but floats in a pool of mercury. Where is th6.5zeah* rsgue buoyant force on the barzs.a5eu g*h6 ll greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-nfexmcwfq;2 h- fl87f f(8x e.kg piece of lead. Wh- cx fe8ffm7lh8e(xnq. w2ff;ich has the greater buoyant force on it?

  A piece of iron rests on top of a piecr6 fa/6s*ujrdy7 y wd9e of wood floating in a bathtub. If the iron is/a6f967ddsj wr yyru* removed from the wood, what happens to the water level in the tub?

  A piece of wood is floatinrr1sxs9: la76im /,bzav fds( g in a bathtub. A second piece of wood sits on top of the first piece, and does zf(:lxd1vsib/ r,asmar7 9 s6not 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 diameter of the pipe at point B is larger tha0+ c zu9:qbzrs;)o yhzn at point A. Where is the speed ofurz qcs0hyz9+o; b):z the water greater?

  An ideal fluid flows at 12 m/s in a aiwckyln+lj)*3+ n1jhorizontal pipe. If the pipe widens to twice its original radius, what is t wa*1j3+ ycnk)j l+linhe flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pv 4gg28/igln zt k+;ovh 9:2eq /apaeh2ur(mbipe narrows to half its original radius, what is the flowo g;vhganzer+/bp82gltqh e m2 ka/2iu49v(: speed in the narrower section?

State Bernoulli's prinp:2i9ha+0qfhhv a4 rvciple.

  Which one of the following is associated with the law of con,/wc2fnzod ma d,j8 /(qv(xnn servation of energy inco( (w ad,8zjv/,m/nn q 2dfxn fluids?

  As the speed of a moving flu un5yee.ojfo b00 q9m (1d+kltid increases, the pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at point B is l(zpm*w*69dzgm8 b vqsarger than at point A. Where is the water p(m w9z*z q8s*6bdpgvmressure greatest?

  When you blow some air above a paper strip, the paperl pt;1vz0a j;i rises. This is because

  A sky diver falls through the air at terminal velocity. The fore.04onm tmjru sot8jdl (+8 3ywt(j.anr2 xy6ce of air resistance onejx.l yw28sdj 4nt03o6 (ma8u+tryo.tj(mnr him is

  Two Styrofoam balls, of ra x/hgpm*;u by*dii R and 2R, are released simultaneously from a tall tower. Which will reach the ground firsmp b/;h *g*xyut?

  When a small spherical rock of radius r falls through water, it exh ip2cmbw,e,dk - 1pak7/,wds periences a drag forc1e2,7dsp awbwki, ,-ck/dhm pe $F=arv$, 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 narrow pipe? That lmiw2iy- qgd gz3h+6mhko: 9vachs7-i 8d-7d is, if you made a 10% change in each of the quantitieh7-di7 h3kyhwmgq6m-9gi8 + da-olci dvz: s 2s below, which would cause the greatest change in the flow rate?

  Two horizontal pipes are the sa .nl 6bbsk+*1ju/6rrn/uv avm me length, but pipe B has twice the diameter of pipe A. Wateb/+1jlmrn a6s u6b./knv*rvur 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?

  Two horizontal pipes have the sambcs w;;46exvvdau9u .71zo zoe diameter, but pipe B is twice as long as pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the lengths; z9o;bucd 7v xe1 .wua46szov 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 "greasyqky r mrj/g+6)" taste seems to be associated with oim) +kyrrgjq6/l 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 placed in watx/s;i4zt tk (ter, the water rises to a height h. If the diameter were half as great, how high would tht;is (t4tzx/ke water rise?

  Certain insects, such as the water bug, are sufficiently lightweight thapp4 h cmm.m. p ,tfy36b5cjh-et they can run on top of water without breaking the surface tension. Water bug A has w45hmyfpc.pjpmb,. 3 ce- h6tmeight 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 sufch+sfd+ wcqf9ozs;.g d8y( j9rb yn, 9ficiently 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 anf(c,y d+; cb+ zj rshn9oqfwy8s 9d9.g 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 dimensions 2.00 cm x 3.00 cm .fimw1-r42judn: qlkx 4.00 cm has a mass of 30.0 g. What is its densitym-k w1uj4.fd lr2n: iq?

  A liquid has a specific 6s+xnkymvu/b8)- 0cykf .k nngravity of 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cmy 8dc*q:- q2syu om 88dyqgo(t x 10.0 cm x 4.00 cm. What is the maximum pressure it can exert on a horizoto ysgqu8d8o(2d qc :-y8y*mq ntal surface?

  A person weighing 900 N is standing on snowshoes. Each snowshoe hasehk c:ndm42j )oif r*+sc7+ga area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submapfz.6 om2;y3y0 g goczrine withstand at a depth of 120.0 m in the c mz0fz.oy 6opg 2g3y;ocean?

  A circular window of 30 cm diameter in a submarine can withstand a maximum forcg,en-sg*q: ipge :3qa4w 6tah eipa,n 4:e geq*-a tg6 3hwgsq: 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 pressul6/t ra*jn ib/re if the absolute pressure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below the surface owm4oee *c1oens:0xu8f sea? (The density of seawat8xo 1wcsneo* 0eme4u:er is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below +em2w h/)qf dxthe surface of sea? (The fd wq+m2h/ex)density of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machiuu:+ts2)at rime+2dcqe 6r) ene. The small piston has aretsce2 r q++tia:) dm6er)uu2ea $2.0 \; cm^{2}$. 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 5.0888, jni +.4ff;ntgkte3cfz-) g 1acny paeg v 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 on the large pistyi 88vjgnc ,ezegga)pt;48 c 3ff1+annft-.kon?

  A 13,000 N vehicle is to be liftedzd5unr +78f an by a 25 cm diameter hydraulic piston. What force needs to be applied to a 5.0 +nua d5f8nz r7cm diameter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter ofu+dw)qzl z9gb7,q9pk63v yn5x ab (os 8.0 cm, and its large piston has a diameter of 40go l+b5q( 9n6ka)yzbu,qvd3p xws97z 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 water. What is the buoya6eg zsvs1 .c/hnt forceh1z scs.e6g /v of the water?

  An object has a volume v9 gw db,f ku-oi8w6l1of $4.0 \; m^{3}$ 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 submerge+zkd9rh1 tef 743,shu dj zey0d in wate41u3ee+k hdzsthdf 9zy07rj ,r. What is the tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gold is c2rg1v,evh :h $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel sub;jlq+z)ttc jc :7+ yym65s 0cyu tfm(fmarine (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 vai46w, + mgb mcz(wmd8/ud8vis in air and 6.86 N when it is immersed in water. What is the specific gra4 b8m6+wa(m,v zg mdv8ic/wudvity of the object?

  A container of water is placed om9p9 waq qig5+n a scale, and the scale reads 120 g. Now a 20-g piece of copper (specif+9w p9q 5magiqic 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 and density oc74 c)toc*nlk f $2700 \; kg/m^{3}$ 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 jusmh3-5yle36g9e6 1bvrrk fv xyt barely float in water. What is its m91beev5xhgkv 6 l6 33ry rm-fyass?

  A rectangular box of negligibo0wwhx *6v3vo d/yd:ple mass measures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loaded onto the box before it si0ov /dov 3ydpww:6x* hnks 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. Thezwvje)y)ei m1 ( 6/qpe weight of the displaced water is 2000 N. Wj(py wi6eez) v1 me)q/hat is the weight of the object?

  A solid object floats in water with three-fourths of ith:y1kkk y72jo-s g1dvs volume beneath the surface. What is the object's density?jyhd7112 kkv :ysk-og

  A 200-N object floats with three-fourths of its volume be mmd o;z0kj1g;xk h;9z ptt0,hneath the surface of the water. What is the buoyant fo dh;;z0p o9jgt,k 1t0zmk;xh mrce on the object?

  A polar bear of mass 200 kg stands omv:avc:g+*qzno)vj9a )h l p*n an ice floe 100 cm thick. What is the minimumq +am*vhonv9)g)jz a*p c:vl: area of the floe 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 2qgh9rjs,p ;dpo /nw:6vn1fl+(qw p;a.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. Thez5 n i98ssnm.n(yat,pre is a 2.0 cm diameter restriction in the lintz5iyp(8s9a .nn sn,m e. What is the velocity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with a preq s:qsm+at2-ussure 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 pu5 cxc6fcyf6/ 1-,wshpackv, db 5jyj) mp to supply a drinking fountain with 300 kPa, if the foufwy16c b/,sjfj-)d,c phccx5v 65ka yntain is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of a water stors.( jn ot7fw e*siw-c bf5w(z8age tank that holds water at a depth of 15 m. At whacb (t(.* wssn7 zoi8f f5-ewjwt rate will water flow out of the hole?

  Water flows through a h/l dchu:k kjos465 rm1orizontal 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.s0k1rb. ;:7 uam fkdp kldx.u520 Pa-s. 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, and neglect any dr70akxkd: . .bf ;dukslr 5up1mag effects due to the upper part of the funnel.

  Suppose that the build-u0t mxd win 7zklx f)nrj9(5q4jq84mbtp -z*l (p of fatty tissue on the wall of an artery decreased the radiuiql (p4-ft9mw nl dtrn( z kx8jx7z540b q)*jms by 10%. By how 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 pg2o8qrp oqes91f)5:kd fb9r nan of water. Tube A has twice the diameter of tube B. If water rises 24 cm in tube A, how high wq:g9of) dk1qfpeb95 so rr 82nill it rise in tube B?

  The surface tension opzy3r -a) e di gzn,8tz++4sc.9gpmnof water is 0.073 N/m. How high will water rise in a capillary tube of diameter s 9 y,crz8)na 3g+pgm-ezdpo.z int4 +1.2 mm?

  232

  To what height would water at 0 degr likp18(nx; r0hgpw d+ee Celsius rise in a glass capillary tube with a diaip0xrkgpwl 1h+( dn; 8meter of
0.50 mm?

  A narrow tube is placep3d,7 fg7+ppd n6dke ed vertically 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 thef +ddg6e3n 7ek7d, ppp liquid column in the tube?

  Consider a rectangular frame of length tpy.i )pf,r ,0q2:uh yf/ufic0.120 m and 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, :u,f) ty/ic0iu ,hypp.rqff2how much force does the soap film exert on the 0.600 m side?

  An adjustable rectanml8o*h/ h+nyy4w wt) cgozz), gular 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 is required to l+h)ghzyzt,*cw o8)wn4 / yom move the adjustable long side so that the frame is 12 cm square?