The three common phases of/rt8d-riofp om 923qm 49gsgt matter are

  Density is

  Substance A has a density or29vye8cvo)w pek7y.zuv6 8c f $3.0 \; g/cm^{3}$ 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 of pr25ccj7 8u0 yz4gwvkpfc) pg (hessure?

  Consider three drinking glasses. All three have the sam/kl(; x;2 f lvw p(ipse6eark*e 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 glass has the greatest liquid pressurlxp i;a/ 2pw *e6vs;krlfe((ke at the bottom?

  What is the difference between the presjl p4u rzc*n- ekzod*58:8x fcsures inside and outside a tire called?

  When atmospheric pressure changl5ent ev:v,b 9es, what happens to the absolute pressure at the bottom o5ne,v9t: velb f a pool?

  You are originally 1.0 m beneath the surface of a// tf;ubup0b y:a4ajvbv* 8fh pool. If you dive to 2.0 m beneath the su b8uf/ *ptu0ba4jy:b;a v/vf hrface, what happens to the absolute pressure on you?

State Pascal's principle.jzi cu, te3.5x

State Archimedes' prxr c,fg;8dpm by*+ ;isinciple.

  $50 \; cm^{3}$ 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 densiusliap.7nvff,uy7. 4 ml)- lzty, what happens to tm)4fnyi uzau7 f ,7-pl.llv.s he buoyant force on it?

  Salt water has greater density than fresh water. A boat7* he )q b:gpt/ -haitpdviufv+-k,e5 floats in both fresh water and in stib fetdah/: *h5v 7g-)iqu,ep +pkv-alt water. Where is the buoyant force greater on the boat?

  Salt water is more dense than fresh water. A ship floats in both fresh water ay za60tw.(zr btr) vv+nd salt water. Compared to the fresh water, the volume of water displaced in the sa zvrtv yt6z .(r0w)b+alt water is

  A steel ball sinks in water but floats in a pool of mercury. Where is the buoyg8pnjd w fba1plrh4/, m 04n3zant force on the barbz4j40/n3nwp hlg ,fdp8 1m all greater?

  A 10-kg piece of aluminum sits at the bottomfs07)h3ugnt6x k bj q; of a lake, right next to a 10-kg piece of lead. Which hn3fjq g)tb7uk 6x0;s has the greater buoyant force on it?

  A piece of iron rests on top of a piece ;byr;ucz jq0yi)ok:* fjf) ,d4uf n5uof wood floating in a bathtub. If the iron is removed from the wood, whfor *yyf, idj;5un :ju uk4cf;)0)q zbat happens to the water level in the tub?

  A piece of wood is floating in a bathtub. A second fb cz .a*-z16)qq,al i)tnn aypiece of wood sits on top of the 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 level1yn*qfzqa, )6z bn.atac)i l- in the tub?

  Water flows through a pipe. The diameter of the pipe at point B i3ujg-pjx x gix*0y8gobts/0 9s larger than at point A. Where is t 98xji0 0ygg/x3 utbj*xso-pg he speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontal p tdo9 )*ll a+mdjz,emvi4q:w0ipe. If the pipe widens to twice its orig t zl:4mliqod,90 *+vdewmj)a inal radius, what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narroaunbto qh +2)62 c3rtkws to half its original radius, what is the flow speed t2nro3kq b uat)2ch 6+in the narrower section?

State Bernoulli's principl:y zb 9wmn rqbot(m/3;e.

  Which one of the following is associated with the law of ;gc e85dnsyz46.hrlr conservation of energy iyrdc8g6 lerh5n sz.4;n fluids?

  As the speed of a moving fluid incr/pf5 mak) 9ipreases, the pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at e-sr0gp 9 9arqz3tetn-y 3sb) /cek 9cpoint B is larger than at point A. Where is th 9ncrqs-ke 3/)t a s0yp g9t9bee3rcz-e water pressure greatest?

  When you blow some air above a paper strip, the paper r s-upewl(q ,e0l if w;7r/*rxt:bxf+zises. This is because

  A sky diver falls through the air at terminal velocity. The force of air rmtsp.zj1 zzc;5dtprx*wz s,*9u mc88esistance s.8p1wtztmx*8,c*;r 9zuzc js m5 dpz on him is

  Two Styrofoam balls, of radii R and 2R, are released simultaneouslyks9us0+n ee*k from a tall towersk09ku+* ee ns. Which will reach the ground first?

  When a small spherical rock of radius r falls through water, it (8tskdqqx;z+c1 uoc qopk+2( experiences a drag force d2oto ;kz s(pck(8 1uqc+qxq+ $F=arv$, 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 emoya yin stmh/638ihry7( *kc6fp5 :i ffect on the flow of fluid through a narrow pipe? That is, if you made a 10% change in each of the quantities belom is/y ra7 6pikh3tfn*5 :(myy8ioch 6w, which would cause the greatest change in the flow rate?

  Two horizontal pipes aymoh* 1o ztw/;re the same length, but pipe B has twice the diameter of pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the lengths hzoy;wm/t 1*oof the pipes. If the flow rate in pipe A is Q, what is the flow rate in pipe B?

  Two horizontal pipes have the samg( 5nj(m)8f v*zdqev, dif;s5w fe,kme 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 of the pipes. If t de5, mw5ni fgze;f) ,(jq8fvd(kvs *mhe 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" taste seems 2 h7hm flomgxkx /e5r; oqkqd:r0-b4 5to be associated with oil spreading out all over the surface of the soup, instead ofom qhh;dolkmq :x5grf05xb72rke -/4 staying in little globules. To us "physikers", this is readily explained in terms of

  When a tube of diameter d is placed in water, fnw 7n5p 5fxw5;li4l zth.io7id*(et the water rises to a height h. If the diam77.h;x*nlt tolwz5f eiw4n 5id(5pif eter were half as great, how high would the water rise?

  Certain insects, such as the wategzm)*zn f0e 6wr bug, are sufficiently lightweight that they can ruf* 0z znw6eg)mn 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 B?

  Certain insects, such as the water bug, are sufficientlyw x.5ub(b02 zgn af)cj lightweight that they can run on top of water without breaking the surface tension. This is possible because the water, due tw2gbx ) z0c.b 5(ujnafo 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 dimensions 2.00 cm x 3.00 cm x 4.00 cm has a mtlfm: 4-b f(7xd 4pgh a3vzkxz-(+mtgass of 30.0 g. What is its d(mt4adf (74:fpzlhxx +bg3t v--mg kzensity?

  A liquid has a specific gravity bu1trc6 *s(mx m.fc s6of 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 p 2t*en;b : 6;oe hiepionmo42cm x 10.0 cm x 4.00 cm. What is the maximum pressure it can exert on a horizontal surfacen pmh: ep;;62 eiont2oio*b4e ?

  A person weighing 900 N is standing on snowshoes. Each snowshrp24 df;x5**opsk dlb oe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand at a depth of 120.pcigh5 pke ovey)/0ru.wit gzv9vq.y4.679a 0 m inv/uypi60e)e4o9yrp 5ika v ch. . tv.g79 gwqz the ocean?

  A circular window of 30 cm diameter in a submarine can withstand a maximum forcey.7wh 9yjf. ixwo+*hq ofx+yw.97j ho.fi q*yhw $5.20 \times 10^{5} \; N$. 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 ab2(w hwbrn-t, isolute pressure is 300 kPa?

  What is the gauge pressure 0he,,s,dl 2x di.hpl4n7up mcat a location 15.0 m below the surface of sea? (The densitxi,l,nmdhu7 e2 hpd s4.l0pc,y of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below the surface z qr 3p5u-f )wta3w;gscmz);s of sea? (The density of seawa))t3 m 3aq-5cwupsfgsw ;;r zzter is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machine. The small p7d6ce 3 nt7enfiston has d77ce3fenn6t 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 radiyyrif7 6 68fkqus of 5.0 cm and the large piston has a radius of 15 cm. What fyq8rf7 6f6i ykorce 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 lifted by a 25ktx68, ixq,xdn6iv4 s cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm diameter piston to ack x,8,ii6x dtnvq46x scomplish this?

  The small piston of a hydraulic lift has a d1ujs;r88.usp5y lwicf 3d aj: iameter of 8.0 cm, and its large piston has a diameter of 40 cm. d s3ay;5u1l8sij .r 8fwjp :cu 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 buoyanix3sd 6tnmq;* myz;h,t force of the waxm h6;ntidq s,3mz ;*yter?

  An object has a volume h 4lo i1g ,:., kn)dtt(zpbwqlof $4.0 \; m^{3}$ 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 whia ea:-ipyay .5scdpwvb*)8l+ le submerged in water. What is the yyc)aw5v. 8p d l+ei *baaps-:tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gold iysy1xef4r ;-xs $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel subeo *v 8x1oswyhuse( +/marine (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 immersed ixue7,re**q,m/q cfsb ;0ku f sn water. What is the specific gravity of the object?k*,m0 qeq/rfue u ;*sb7,sxfc

  A container of water is placed on a scale, and ,2tsg; 0yt w: je;4dgab 6pjse epy7z)8u9wqtthe scale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and lowered izwg;qydas ujyt82g4e7w;js),pb 0ep 6:t 9 etnto 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+rfojk xf:33m 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 cmcw;8ixi4pr9- j sc:u w will just barely float in water. What is itsxc9j 8-i ;s:icu wwrp4 mass?

  A rectangular box of negligible mass measures 5a 1qz.wpn /u8k.0 m long, 1.0 m wide, and 0.50 m highn .z8 kpuwq1/a. How 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 hpj4ph 4k.b*j nalf its volume beneath the surface of the water. The weight of the displaced water is 2000 N. Whatn*hjj4 kb4 pp. is the weight of the object?

  A solid object floats in water with three-fourths of its volume ben/xti s+wn bcbvk1b *:5eath the surface. What is the objevb1i*+/5:b swcn xtbkct's density?

  A 200-N object floats with three-fourths of its 0 nr;rr+enj, t(aeki6 4 giw2cvolume beneath the surface of the water. What is the buoyant force onj,ernr0i4 k2ei+ wta;g6c r(n the object?

  A polar bear of mass 20z+85pgeu: 9 pti hb)ic7zjp 1v0 kg stands on an ice floe 100 cm thick. What is the minimum area of thep+p bvi: u 5)t7pe hzjgc891iz 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 2.0 m/s. Find the flowbo36zbfo-)uago-b rd(i1x3 e rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. There yivm1ax: td-;to0+:tf oc .hiis a 2.0 cm diameter restyit. oh0;xc md fv +::i1ota-triction in the line. What is the velocity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with a ouez(0yy(9( wqiht- apressure 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 fotuhuxi2*7ad ge-3 h*h1uql z, untain with 300 kPa, if the fountain is 30.0 m abov*1qhgluu7idx,t eu ha*-23 zhe the pump?

  A hole of radius 1.0 mm occurs in the e1mxybf-mmv,;vn1f 5bottom of a water storage tank that holds water at a depth of 15 m. At what rate will water flow out omn1;m fxfb,1e 5yvmv-f the hole?

  Water flows through a horizontal pipe of cross-se6 qbi-vh c0gn( ;ocae:ctional 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 ii3idv2t oc 4:kt 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 n:2tiivk co3 4deck, and neglect any drag effects due to the upper part of the funnel.

  Suppose that the build- (ydv pssp(hnfp:)i1 8up of fatty tissue on the wall of an artery decreased the radius by 10%. By how much wo fs:hp(pv1nyds)8pi( uld 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. Tube A has tw yu(/i35wgvo cice the diameter of tube B. If waterg5oci3 yv(w /u 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 r/x 8sr:ev(h gdise in a capillx:8 vges hdr(/ary tube of diameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capillary tube,s (w6a)hs)nij+m qy*ea:97sdnck zg with a diamjgaed+9nh w sqm(i)csy zs: n,*6a7)keter of
0.50 mm?

  A narrow tube is plapib ublah-,-0m a 08mgced 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 gublb -him-m8a ,pa00 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 0lc2y xbfo;mjx1c 3paf);2 xb:.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 on the 0.)m;12lfxacc:;2 yob3pjfbx x600 m side?

  An adjustable rectangular frame has lengtp3yk gtmy 70m.h 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 .p k0mg ym3t7ytension 0.026 N/m. How much work is required to move the adjustable long side so that the frame is 12 cm square?