The three common phases of matt- ujvqx(huu*wu b,-:fer are

  Density is

  Substance A has a densityy43 j9 ubag0p8e11 f /zxr+wqfe8vuwx 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 unl ,tha6p */6stgj3ncqit of pressure?

  Consider three drinking glasses. All three have the same area base, and all th: (,wcnoq v3d 0cc (6,quxxdgdree a c(6dcx:gq 0dv,x(, 3od cunqwre 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 pressure at the bottom?

  What is the difference between the pressures inside and outside a tire calledw -vkf4,khw i9vs(q :c?

  When atmospheric pressur tn5og/2fk;qxs pn-7h0h mop2zpg r *,e changes, what happens to the absolute pressure at the bottom pp*kq f-x7 52mn n2ps,h;0rtg g/oozhof a pool?

  You are originally 1.0 m beneath the surface of a p6dy+bg ij j.m/6fa *zfool. If you dive to 2.0 m beneath the surface, what happens to the absolute pressur fi *6jzgj/bm yaf+.d6e on you?

State Pascal's principle.9*8cmrlesx3a/k ov t 3

State Archimedes' principlz )m3i4tu1 kphe.

  $50 \; cm^{3}$ 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 deh+rrp dh+(.+4 pco+ bqved9 cneper into water of constant density, what happens to the buoyant f94rn+pecch+obdvq+(+ hpr d .orce on it?

  Salt water has greater density than fresh water. A boatl 5w hnk.k3dv/ floats in both fresh water and in salt water. Where is the buoyant forcdlkwnv 35h/ k.e greater on the boat?

  Salt water is more dense thyavgms (56ea p fns+07an fresh water. A ship floats in both fresh water and salt water. Compared to the fresh waterasnps+6gv(a50 7emfy, 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 the buoyad g a+(ahd ,-fc/9azownt force on the ca o,- +af dwza9dg(/hball greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right next to a 10- 5f-g1lrdoiis1 s90g jkg piece of lead. Which has the greater buoyant f1j 91gd oigfs-rs5 il0orce on it?

  A piece of iron rests on top of a piece of/,5g j5bhhek yf99 sdr wood floating in a bathtub. If the iron is removed frr 9hs byg5hf9k5 /jde,om the wood, what happens to the water level in the tub?

  A piece of wood is floating in a bathtub. /qtma2+2ayxa1( u cq.e*mx wg A second piece 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 the1.m/ a(2+ q 2tcaqu wyx*amexg water, what happens to the water level in the tub?

  Water flows through a pipe. The diameter of the pipe at point B is largji13yp7 cbs*m er than at ps3ijby* p1 c7moint A. Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a hop*7k z. yx+ c17aqyvuzrizontal pipe. If the pipe widens to twice its original radius, what is the flow speed in the wi7*.yxqakvp +zc71 yz uder section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narrows to1,i b w/bnvwg/ tndk2dye-gp: 1fp59g half its o:pne/ if wd 2k1bbw y/p51,dtggv-n9griginal radius, what is the flow speed in the narrower section?

State Bernoulli's principle.tl:eql0jch+)

  Which one of the following is associated wi5r nh;zk:2yhxth the law of conservation of energy in r z:hxy2kh5n;fluids?

  As the speed of a moving fluid increases, rk.6vz+(al , x( amm38 j (towkxa9tmjthe pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at+:vcnp4g 3elt point B is larger than at point A. Where is the water pres+ntvp 4g :cel3sure greatest?

  When you blow some air above a paper strip, the paper rises. This is beaf/oqm 7prkn6e -cp9*cause

  A sky diver falls through the air at terminal velocity. xc4n768c*fhj*egiq7llchhb wsd )/0 The force of air resistance on him 7bhc hglf0/x6)sj i q*edhcln7w8c*4 is

  Two Styrofoam balls, of rf kw;g6 5km(ieadii R and 2R, are released simultaneously from a tall tower. Which will r keik56;mgf (weach the ground first?

  When a small spherical rock of radius r falls through water, it experience)oenhnp d5 vw4 n2y+h,s a drag forced2nnpo +y5h4hvenw ,) $F=arv$, 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 on9/4ffa cz9j m0iw-ypz the flow of fluid through a narrow pipe? That is, if you made a 10% change in each of the quantities below, which would cause zjfa/ iz-9wpf0 49mcy the greatest change in the flow rate?

  Two horizontal pipes are the same length, but pipe oi3f t)b e,8n zcj3a9cl.jfea /96rcdd*l(jxB has twice the 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 is Q, what is9d6c./( ,e it) *oj r a8jefa3fdbxlnjc9zc3l the flow rate in pipe B?

  Two horizontal pipes have the same diameter, but pipe B is tw0pdux3b uin8 8ice as long as pipe A. Water undergoe88b0 d upxuni3s viscous flow 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. This "greasy" taste seems top5 t k7e6yfqpf6.se9 nrhg t5ua5:j9o be associated with oil spreading out all over the surface of the soup, instead of staying in little globules. To us " uhoff75 syppk6tenq .r9gjat e56:95physikers", this is readily explained in terms of

  When a tube of diameter d is placed in water, the water s .y* smhjm x41.nk wi)/pw4csrises to a height h. If the diameter were half as great, how high would the )skm1s4x4w /.csw*. jmnhpyi water rise?

  Certain insects, such as the water bug, are sufficiently lightltz uvlg ,3*0xaqh sc7r 97-rdweight that they can run on top of water without breaking the surface tension. Water bug A has weight W. Water bug B issl udt l*x-hz9,7cgvr7qr3 a 0 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 0 -uxmtcx(st48jv4 vwwater bug, are sufficiently 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 feet of water bug A is F. Now suppose that watuv-v48xmc(tw s0x t4j er 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 dimen4f5hkawkcv,20-v2ay 7ebyf ty nym 7 ,sions 2.00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. tfmnv2y-bye ,ay2v,w5fa4k7 cyh0 7kWhat is its density?

  A liquid has a specific gravity of 0.357. iww2b q-or g3e+06 trq2 fcm8imoj-e. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.ocx trqx7-8d+av ;6 jw0 cm x 4.00 cm. What is the maximum prt;xq rw-8v da76coj x+essure it can exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each snowsh(8sx;mdvck+zus+mmncb z.) +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 120.0 m f*a3- viovul4.co2o ainivao 2cuo.f3-l* oa4v the ocean?

  A circular window of 30 cm diameter in a submarine can withstand a m+i,g j 5r st b5hk2izmdqq;v9k*c+dl;aximum force o+ 5g2imi5,k d;;ckjt q9drq b+svh lz*f $5.20 \times 10^{5} \; N$. 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 pressut4 4mj/qznlo6 re is 300 kPa?

  What is the gauge pressure at a location 15.0 m below the surface of sea? ((6ou 7dhlngn 7yzb87xThe density of sng8ulno76hb (7yx d z7eawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below the surface of sea?v3;krtp +hi-;y/ qfmr (The p ;ir yrktqf;- mv/+3hdensity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on faz9oml7/b ;j ieffql zx3; 4 e,2zjd/the small piston of a hydraulic machine. The small piston has l9j; /jqx ,d z/e;o4elf37iaz bfm2zfarea $2.0 \; cm^{2}$. 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 s58yl)oo7 f d d3jii(p5.0 cm and the large piston has a radius of 15 cm. What force must be applied on the small piston ilfoiyods8 d(3i5 7p)jn order to lift a car weighing 20,000 N on the large piston?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter /bgl9e87 e6eoe vbi5u hydraulic piston. What force needs to be applied to a 5.0 cm diameter piston to acc ge957e e8vbbu l6ieo/omplish this?

  The small piston of a hydraulic liftl.4eu (wj6edw 4xe f1m has a diameter of 8.0 cm, and its large piston has a diameter of 40 cm. Thux6we.w j144efme (l de 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 30a63t qfrfae)l3lp:2 u N in water. What is the buoyant force of the waterqurp tf)el : f263laa3?

  An object has a volumyd(y:fhb s -f . k/y7zi8ztka80ki;mw 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 is supported ;jtt q wnsr08 eb-l0/n9jv1ltby a string while submerged in water. What is the tension in the string? (The specific gravity o/venr 0wsnb8 ;qjjt0t1lt 9-lf iron is 7.86.)

  If the density of gold is* vlm lv5-us2cw(bw bbasj8.zy(- :c w $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel subma.xsw1)wzinq; kn(0x ggmbs:3rine (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 ljy e ss.a(4g0immersed in water. What is the specific gravity of thajes0l (4g.s ye object?

  A container of water is placed on a scale, and the scale reads 1ttre7c eh .axj.7p9:re x9dgoebvt );)pa;*y 20 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and lowered into the water, not touchi.9e;rr) )gopaxe;bt c ht p e79e 7ydjx:vt.*ang
the bottom of the container. What will the scale now read?

  A piece of aluminum with a mass of 1.0 kg and den9byrsg8j/f f2rq3xe 7e d; u7nsity 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 willl lai5+b1h anlz 80rt- just barely float in water. Wh8-rt+ 0l l15ah aibznlat is its mass?

  A rectangular box of nev ge)u:i 0vxa1gligible 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 v0 giax:)eu1v 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+dp; uqbp(f z) surface of the water. The weight of the displace;uqbd(f pz )+pd water is 2000 N. What is the weight of the object?

  A solid object floats in water with three-f/(wo;n:ilik bgqzg4 8ourths of its volume beneath the surface. Whgo4klziq ; b:gn(/i8 wat is the object's density?

  A 200-N object floats with three-fourths of its volume beneath the suz0dqv 83cym+gz**muqab jy(2rface of the water.8y(d 0vgzy3 j*+qczma*b2qu m What is the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What is tha0qd(ikaska 74 bow82e minimum area of the floe that will just support the bear in saltwk 7i aq2 ba4wsa0(k8doater of specific gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pipe of diameter 3oh t/v4rog 5(z.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. Thereer9tn +ey.b) e is a 2.0 cm diameter restriction in the line. What is the velocity in this restricn)b re+tey9 e.tion?

  Water flows at 12 m/s in a horizont(2ei 3 xoewi*ial pipe with 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 nm 96xi7a5l u0rl5jiqpump to supply a drinking fountain with 300 kPa, if the fount9ll jrn ii5a5uxm07q6 ain is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of a wat5 r2pwym8xnv+ vi(q ucq26es 6er storage tank that holds water at a depth of 15 m. At what rate will water flow out of the holepmq8665q 2cwyuvsvrn+x ( ei2 ?

  Water flows through a horizontal pipe of u4eogt*iy0m8 2inz6 g 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. How long would it take pkby xu:qk5(.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 drag effects due to the upper part of the fu(kxykp5 :ubq. nnel.

  Suppose that the build-up of fatty tissue on the wawcmh *p,m6/e veac6d(ll of an artery decreased the radius by 10%. By how much would the pressure provided by the heart have to be inc6p6*amv mc we cd,(h/ereased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of waterid6dbzfb54nd b:,e v,. Tube A has twice the diameter of tube B. If water rises 24 cm inbdz,d6 4 b en,iv5d:fb tube A, how high will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will watam3;w .3ec5ew4g fdam .e4ypo er rise in a capillary tube of dia .m w53c4;epgadoey.me3waf4meter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a ge+m,) 6g xatmmlass capillary tube with a diameter ofm)m+6g ,xemat
0.50 mm?

  A narrow tube is placed vertically in a pan of water,.(heabrbpl)n+el) m2 4 os i5h 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 )bl42lbia ees5h(n r)hp.+o mheight of the liquid column in the tube?

  Consider a rectangular frame:,wumefn- qxmb,p-/g0kw7s j of length 0.120 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, how much force does the soap film exert on the 0.600w/-7q,w-kmbejspx: 0g ,nmuf m side?

  An adjustable rectangular frame has length 12 cm and width 5 cm, and is *stj ;qe ,hp0j o(pcg.built in such a way that one of the longer sides can be m h;ep ojq* ,tsgj(p0c.oved 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?