The three common phases of matterf p (3cej ;znk2i, bga)8pypd- are

  Density is

  Substance A has a den jqgg cd +g05pjfg:);b4r 8dybbxp2*psity 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 noth; 2za (xh(ool a unit of pressure?

  Consider three drinking glasses. All three have + 9ugf6 3ezsystko dp2k4coed p;x, +8the same area base, and all three are filled to the same depth with water. Glass A is cylo6e;czf39dgt+ y8 24s+, skekoud ppxindrical. 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 c1,wlz vqebw1 -dw1 au: fp2a7walled?

  When atmospheric pressure 5ka:9 zpkd/jtbw *h p3changes, what happens to the absolute pressure at the bottom :bpp/5k 93hztadkj* wof a pool?

  You are originally 1.0 m beneath the surfr2 (bj/7ktkcy ace of a pool. If you dive to 2.0 m beneath2ry(/ jbtk7ck the surface, what happens to the absolute pressure on you?

State Pascal's principl rwra:k27e +,8j rhg6 fx2ukyte.

State Archimedes' princqk+3zib aqq0 ff 6p2p8iple.

  $50 \; cm^{3}$ 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 happen r(i6d/t;k yjrs to the buoyant force on it?/y(rjt drk i;6

  Salt water has greater density than fresh water. A boat floatjiqkb 1) + uop*q6lam9tmz6 (vs in both fresh water and z k*pqb+ 6tij(m 6qm)a1vol9uin salt water. Where is the buoyant force greater on the boat?

  Salt water is more dense thang w1skc:k d0q n/pw d/30zbvi; fresh water. A ship floats in both fresh water and salt water. Compared to the fresh water, the volume of water displaced in the sak/0k nwdi g0z:;w qdpv s3c/1blt water is

  A steel ball sinks in water but floats in a pool of m-kx b+j 7z)tck+ap6wgz3 fm4cercury. Where is the buoyant force on the ball gb- )6 k3z+fp+c mgkzt7axc4jwreater?

  A 10-kg piece of aluminum sits 7eapvt2j) ihih3 is1xu23 ,g mat the bottom of a lake, right next to a 10-kg piece ofp he 3his2 2v)371itgixaj ,um lead. Which has the greater buoyant force on it?

  A piece of iron rests on top of a piece of wood floating in a bathtub. If w kfy8v): n;hdthe iron is removed from dfvh) 8:w;kyn the wood, what happens to the water level in the tub?

  A piece of wood is floating in a batjoa093s;vj qg htub. 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 the water, what happens to the 3 9v;jsj goaq0water level in the tub?

  Water flows through a pipe. The xj ka 2+yel tkt8o5)7(dj af3mdiameter of the pipe at point B is larger than at point A. Where is the3)oxj(jak 8d7y+ 2k5 ftm tlae speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontal qx 0,oo;sw9qk pipe. If the pipe widens to twice its original radius, what is the flow sp0,;skxooqw q 9eed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe nar 6pnzs 1uxyp )a2r)xq ;9xein8rows to half its oxqe1ypp96 )2xsua) 8nzr n;xiriginal radius, what is the flow speed in the narrower section?

State Bernoulli's principls p (1;cl2edzee.

  Which one of the following is associated with the law of conservation of ee*t -qc3c,cl jnergy in fllt-c3 j*, cecquids?

  As the speed of a moving fluid increasedole,osy;iu3 hvauoq: sp)/o 1 v 6s.5s, the pressure in the fluid

  Water flows through a pipe. The diameter ofsn;2r6j bjv0 k the pipe at point B is larger than at point A. Whers2jr6bj; v 0nke is the water pressure greatest?

  When you blow some air above a paper strip, the paper rises. This is becti /h f8a-5hzld vz4w*ause

  A sky diver falls through the air at terminal velocity. The force 9p8 :yrlev) z8;e rugiof air resistanz :r8; yvleuep9r8) gice on him is

  Two Styrofoam balls, of radii R and 2R, are released simult3q*2 5v7p;fd fkqpjm waneously from a tall tower. Whpv7 mfq pdwq 325;fkj*ich will reach the ground first?

  When a small spherical ror-mutuh::jkn y +vx+. ck of radius r falls through water, it experiences a drag forcut:rumy .jn- +k+:hxve $F=arv$, 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)b(); gb.)nt wc sytap5k3sz dtn1wh1 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 the greatest change in the flo5)kg13 apsntdwz tb( ch)w;n ty1.)sbw rate?

  Two horizontal pipes are t tuc2stnyykr j2tk;2u-6 57nlhe same length, but pipe B has twice the diameter of pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure differencunk cry yt;jnt52l6-su 7kt22e 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 same diameter, but pipe B is twice as long as kxiq++hv h1+plm;j 1 rpipe A. Water undkrxhh ji1pm+vq l++;1ergoes 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, i ;tvs)rw8zi n+e*ge/phme;g,t often tastes greasy. This "greasy" taste seems to be asso;pem8zvs;/e)*g+t h e ngwri,ciated 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 placed in water, the water rises to a height h. Ipb 2ya6.1dr(d upf m*c8zuhp,f the diameter were half as greatzcadrpbuf 2,ud(p68 *m h yp1., how high would the water rise?

  Certain insects, such as the water bug, are sufficiently lightweight t4 eh-m 4u(f+jxj13v:tscivb ehat they can run on top of water without breaking the surface tension. Water bug A has weight W. Water b-+ xsmvu i4e3jv b14f h(jc:teug 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 ; *qqpl5nr4zl 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 water bug B is twice as big as bug A in every dimension. That is, bug B is twice as long, nr4 lq;zp *5lqtwice as wide, etc. What is the maximum upward force on the feet of bug B?

  A plastic block of diymv;o9j,kexi2,6 t)8do m 6c )f tldhpmensions 2.00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. What is itt h 6o xfc)y;mjitm6e8 d kov9d)p2l,,s density?

  A liquid has a specific gravity of 0.357. What is lg bak .7ap)r8f6go k )ufi nn;*/la;mits density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm. Whathid 6-ldjk9+ 1g ldp-s is the maximum pressure it can exert on a horizontal sug-ik9h6jd-p dsl 1dl +rface?

  A person weighing 900 N is standing on snowshs-o o ce396nyooes. Each snowshoe 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 jh* co y1 4( ecahf33ta,zux oqrq5t7*8,ijdsin theqzaorf ec(y*s,*o3,7ih8uh ct5x qd4 3aj 1tj ocean?

  A circular window of 30o9hq4me54g a a cm diameter in a submarine can withstand a maximum force of eh4oa5 gm9q4a $5.20 \times 10^{5} \; N$. 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 6w r4ubg3q.zqhm)7f 2 *vzzu h300 kPa?

  What is the gauge pressure at a location 15.0 m below the ; :fndsq4agy -rb0si 77 d.gbxsurface of sea? (The density of seawater is dysa 7gg-74qinb0 ;b.sfdx r:$1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a locati c8r7 tpn6jao8on 15.0 m below the surface of sea? (The density of sep7rat6 on88jc awater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of d(6b y5f(1 uevrti, zp8p)pe2 pz;sp-hloyc;a hydraulic machine. The small piston has a;pvoz1ypyu bf6dhrz, 5 cpt )ee(i8 sp 2(;pl-rea $2.0 \; cm^{2}$. If the large piston has area $40 \; cm^{2}$, how much weight can the large piston support?

  In a hydraulic garage )/wsri bbho /y-t,8erlift, the small piston has a radius of 5.0 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 weighiney-ow,/tr ) rbb8 si/hg 20,000 N on the large piston?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter hydraulic piston. What fzv;p3(*f i 8qk -ojeumorce needs to be applied tojo*8;pi kv3zmfu qe- ( a 5.0 cm diameter piston to accomplish this?

  The small piston of a hydraulic lift h jdf z73vut+a:;qvf8ias a diameter of 8.0 cm, and its large piston has aufa7;z3f:+dtijv8 qv diameter of 40 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 weie6j y8jsl 08swaqdw;. f/al v;ghs 40 N in air and 30 N in water. What is the buoyant force of the w.yvl jjelw8s ads;68/ wf;aq0 ater?

  An object has a volumke4a,p*4b9 bnmnv .dde of $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder ouwr:a/jsl-llrsh5x ig2.bh9t9(d f)f solid iron is supported by a string while submerged in water. What is the59itg luw-)jf(b2x9rl l/rh.a sh:ds tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gol; eoz/ x1zln 5jao4q)qd is $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarine (density = 5513s+oqbaw mjghyg8 $7.8 \times 10^3 \; kg/m^{3}$) 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 im77 ivu39n,jc3adngaf mersed in water. What is the specific gravity of thev j339,7aa d7ufg incn object?

  A container of water is placed jgox+.9, z kbeon a scale, and the scale reads 120 g. Now a 20-g piece of copper (speci,+kj x9 bzg.eofic 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 m 0e6*d mkxytsy,.u6qj ass of 1.0 kg and 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 diameter 2.0 cm will just barely mlsr2 ms9:gvw+ h;y 8ofloat in water. What i:l+ g ;msyr8o92sh vwms its mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0 m wide, and 0.50 +x f.ykpmt7 u;q*a z716gmac bm high. How many kilograms of mass canzg.mpa 7 +1x6bty au;fqcm*k7 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 )* l4n. sphuesr0d+(:i+ajf zp4bzi sthe water. The weight of the displaced water is 2000 N. What is the weight 4:+fi bs(r*. u +)slnsepzaizdj p04 hof the object?

  A solid object floats in water with three-fourths of itsl5 a((jfjyt :ma: +yvj volume beneath the surface. What is the object's density :ylfy :a+ta5m(vj(j j?

  A 200-N object floats with three-fourths o2dfh go8z9.t3aqo y,tf its volume beneath the surface of the water. What is the buoyant force on tgda ,fqto39 8yht2. ozhe object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What is)(vrol(ze m2b the minimum area of the floe that will just lr)2oe(z mv(bsupport the bear in saltwater of specific gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pipe of diametetk(r rytxo 58yme 6clt8)t: ,br 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 mh0gwns w-5y so8qrf6 4/s. There is a 2.0 cm diameter re45rsfhg wy6s -noq8w0striction in the line. What is the velocity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with a pressure+/ cnp flom 5 ,xca9yonib,/) hzd59ls 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 niosqzwv:65k r.hogl*,j7 u;pump to supply a drinking fountain with 300 kPauwiz7jov6gl : r ;q so5*n.h,k, if the fountain is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bott 0e(a ouf ck(nzor45q6ca 2.ouy c.2onom of a water storage tank that holds water at a depth of 15 m. At w4 c60a . ((5 oyo2.2uonraucz oefnkqchat rate will water flow out of the hole?

  Water flows through a horizontal pipe of fs(d(1bipyw ii +0nomp dz0rmp)z fiv2-,o7+ 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 0.2rc/7va0gt v :t e/andkbk( 48x0 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 drag effects due to the uppgk/t 847 vt cra/kbx0e(na dv:er part of the funnel.

  Suppose that the build-up of fatty tissuev *ashwj;dlg4,sg0 c 3 on the wall of an artery decreased the radius by 10%. By how much would the pressure provided by the heart havewajhg0, dv 3clgs4 ;s* to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in * v 52s psfq3 vpr.2y8weigtdl)w 8:dba pan of water. Tube A has twice the diameter of tube B. If water rises 24 cm in tube A, how h 2spwqywip.d:bs5t er83 )g*lv f 8v2digh will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will water rise in a capi1 srf6* uwk7tsllary tube oft671us*rw ks f diameter 1.2 mm?

  232

  To what height would water at 0 degreee5dofp)3jxl) Celsius rise in a glass capillary tube wit lf3xj)do)p e5h a diameter of
0.50 mm?

  A narrow tube is placed vku/7,8 ycrzrc ertically 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 ofyzu/rcc7k8 r , some soap. What happens to the height of the liquid column in the tube?

  Consider a rectangular frame ofw i q --ppn4;rg:dj/q;c gqxi/ 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 0.02 -i-pnggq/;;qcxp/ 4jqiwr :d60 N/m, how much force does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and width 5 cm, and is b4t q4f tawx30zub; w;jo6zg5j uilt 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 m6 wux5otbq4t ; fw4azg0;3 zjjove the adjustable long side so that the frame is 12 cm square?