The three common phases of matter ar8rq)t(i 6gyd be

  Density is

  Substance A has a denoe)gv/)rpyz ll x2-x, sity 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(cf-y oyjb1 l2l2e*ku a unit of pressure?

  Consider three drinking glasses. All p-t8;-e (bhpxd;myfm 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. Glase-f yh( tp pxd8-mb;m;s 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 ; hpfu9e wizq.mjaji/f7k2 4,outside a tire called?

  When atmospheric pressure changes, what happens to the absolute pressur g+:4t-z72h)km ooz- 6 xkjei5t ncxcgcb8qn:e at the bottom of a x-z n:oq5)tbc-i jgk m+7cg8c6exkt 4nho 2:zpool?

  You are originally 1.0 m beneath the surface of a pool. If pouz6ra6.p77mib5pabemyhw y ei 4(5 a /7in8you dive to 2.0 m beneath the surface, what happens to the y/5a4 eib mzp.6(iopbp 7i7ymr 5huwe7a68a nabsolute pressure on you?

State Pascal's principjndo 9r9v7ou6 o 16wmll5k,p gle.

State Archimedes' pr;mtpcgt 6n 6(vinciple.

  $50 \; cm^{3}$ 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 ofv*a22 (stepm eu(qgq: constant density, what happens to the buoyant force e(a: qu *pq2 v(mge2ston it?

  Salt water has greater density than fregftdk0 ux6r95 sh water. A boat floats in both fresh water and in sargudkx6t 0f59 lt 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 wf.3j0p3sic3ttnazlj (qe* 6 and spie( z*qlw6n c t 0j3s33.jaftalt 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 me+nk:ptvf oy ) y(ls/e0rcury. Where is the buoyant fore:tfl /nvs+py ko0y) (ce on the ball greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg pgu tem2f;dnb6pwp wo a,qmysn4* l+8:2m8 el+iece of lead. Which has the greater buoyant force;g 2em8nqmp8o ,ell:upm26 an wdwybs+ 4+*ft on it?

  A piece of iron rests on top of a piece of wood kr :n *bj9/u.twvpf(gpw3o+x floating in a bathtub. If the iron is removbr/g*o 3tjkvf(wpp+x 9 u:nw.ed from the wood, what happens to the water level in the tub?

  A piece of wood is floating in a bathtub. A second piece :pzpxox z:l* 5m;a*f c; c*oscof wood sits on top of the first piece, and does not touch the water. If the top piece is taken op **s;of*p :a:oz mlc 5zx;cxcff and placed in the water, what happens to the water level in the tub?

  Water flows through a pipe. The diamzeahqepbn3l,x 53b2g.; am7 b eter of the pipe at point B is larger than at point A. Where is the speed of the wa37,.b2ban e hmgxz;pqba 5 3leter greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the5 osmb3nec hj 6(7wrt0 pipe widens to twice eshc 37065 w(nr mtobjits original radius, what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizo-dq6tz35 1 xjl 5qi4z rurgmb7ntal pipe. If the pipe narrows to half its origi5m1 3x56gq4bzz-ruti7rd l jqnal radius, what is the flow speed in the narrower section?

State Bernoulli's principl+;pf qefd3jaa4qns ) qw.d(fb,( ( feoe.

  Which one of the following is associated with the law of conservation of energy 4af)+sm-nvpz *b7s jz : mi;wt(dzd)n hw-0hjin fl hfmd 04-:st+)in jw;w-ma )vpz zsnj(z7b *dhuids?

  As the speed of a moving me* 5joovmal(*4g f7ecv3a/u fluid increases, the pressure in the fluid

  Water flows through a pipe. Theo+/c35mat -buum- na n diameter of the pipe at point B is larger than at point A. Where is the water pressure greatesbonmua-ca-/ mu n 3+5tt?

  When you blow some air above a papejry33-(x4zl uer /n mjr strip, the paper rises. This is because

  A sky diver falls through the air at terminal velocity. ()py* 9ltid suThe force of air resistance on him isiyl* t9)u pd(s

  Two Styrofoam balls, of radii R and 2R, are released simultaneously fro96m8djpx xv. um a tall tower. Which will reach the ground m pdjv8 9ux6.xfirst?

  When a small spherical rock of radius r falls through w) /chq 2u8mskjdvow wb35s i/6ater, it experiences a drag i8kw3o hq)cwssj/6/d v5u2bmforce $F=arv$, 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 e o 3;lazbg:p9dpu33 ocffect on the flow of fluid through a narrow pipe? That is, if you made a 10% changeoc 9 auld3po;b3g3:zp in each of the quantities below, which would cause the greatest change in the flow rate?

  Two horizontal pipes are the same length, but pipe B uqui4z9 gtc /)has twice the diameter of pipe A. Water undergcz)4 u9/gqi utoes 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 same diameter, but pipe Bgib+:gs z ,8jrw-sv he1b- wb0 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 the flow rate in pipe B is Q, what is the flow rate in pipe A-jwwrs1 b +vb g-i g8bs:e,0hz?

  When soup gets cold, it often tastes greasy. This "greasy" taste seems to be aq*:r7l1mrmzz (j lc(vssociated with oil spreading out all over the surface of the soup, instead of staying in littrmc q*ljz(7v 1rzm: l(le globules. To us "physikers", this is readily explained in terms of

  When a tube of diameter d is):6b9zldh 9d6vlvi yb placed in water, the water rises to a height h. If the diameter w:dl6v)bvl i6yhd z b99ere half as great, how high would the water rise?

  Certain insects, such as the water bug, are sufficiently lightweight tfr, 1 28qjibumfoe3c, 6plbx *hat they can run on top of water without breaking the surfacjr, qifp8cb3lx1 eb m,2fo6*u e 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 sufficienq)wfvu( j2d7xr ,unw7tly 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 thu)n(wf 7rj7v uqd2,x we 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 mass +e:lkd a24gru of 30.0 g. Whaau4 er2+k dg:lt is its density?

  A liquid has a specific 22:x erb;, 1 t vj79-vl xg*cpajvagtpgravity of 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x cy1a- j9bsc ww:iz2ao5 a4.rc4.00 cm. What is the maximum s :5 4cawbc 29ci-1jza wa.yorpressure it can exert on a horizontal surface?

  A person weighing 900 N is stanp;4k7(lq , kpxau4vx sding on snowshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine wi sp.bat4m c6pjpz4 2u9thstand at a depth of 120.0 m in thp4 2a 9bp4j .t6muczspe ocean?

  A circular window of 30 cm diameter in a submarine can w+ q 8+8x1skh jx mow4irunlu-9ithstand a maximum forcei1+j-4r swm88oh9xu u +k qlnx 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 pressure if the absol reyj +1e(62qhrt qt+b (ao5wiute pressure is 300 kPa?

  What is the gauge pressure at a location 15.0*wob7 wz*p fiwhq,y:twm2etv*.o13w m below the surface of sea? (The densiwpvz,o*2w ito w3* *w:wt ehqbf .71myty of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location fqih)ra 6h lr +i3jahl/dxr*azj *(2-15.0 m below the surface of sea? (The density of seawatejhhd2 fxlr +z/ah-(*q j6r*i 3a)rilar is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits 8 2nhii2dhyb5b-d0nc on the small piston of a hydraulic machine. The small piston hhi05 ycnh2 8ndb2- bdias 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 radiusz+ri0 o6 r3hfizcf7:z 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 weighing 20,000 N on the large pz 3 iz+6 crof0zfi:7rhiston?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter hydraulic piston. What fpi9i,h8 aa1wsc5tf ,m b-5y noorceahnso b9a i 8t,f,c5m5w1y-ip needs to be applied to a 5.0 cm diameter piston to accomplish this?

  The small piston of a hydraulic lift haa3(o ( (yuph elw)2zhvdn4 y,xs a diameter of 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a load o(au,hy(hy o(ndlz 3v pw)42x ef 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. Wez18i5no(f )hvkt*h v3 8ovtl s .olb)hat is the buoyant force of the wath(kv) 8sn*elo l.fov h1 3v8tib)oz 5ter?

  An object has a volume ofdh20 c grhgb- 6khhi7on4aw7+ am 9zb* $4.0 \; m^{3}$ 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 submeyv*; eh2/k7-icypctv3 wf( esi 7(ro grged in water. What is the tension in the string? (The specific gravity of iron is 7.83c7(vrys oi(cgte2h * - ;ypwvk/i f7e6.)

  If the density of gold is 5i)j:93g1 lg42 vkwjjpfym jrg b5 )mj$19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submar1pyh/ :k- y3b9axyw wy3)cyzcine (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 i wnkata;uoih3s:bl5 ;8sn;)a t is immersed in water. What is the ;awh8a t;k:3)ssoubal5ni n;specific gravity of the object?

  A container of water is placed on a scale, -f: q:dee-g gdand the scale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and dqd-:e -gefg :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. v7mqig6n6 .en0 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 u:moa6 axtzof)*yd3, cm will just barely float in water. What is its masso)6yam oazux*3, tfd: ?

  A rectangular box of negligible maoj2 p+awtv ot,23zbi: ss measures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be o,vtj + o w3pza2ib:2tloaded 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 surfa0h xrogbw8z.jfgui;7 :iw4dxa6) + j bce of the water. The weight of the displaced water is 2000 N. What is the weight of th h a)xfbb+0jxjidrg: uz .i46;wg87ow e object?

  A solid object floats in water with three-fourths of its volume beneath c.j7zj o1fjk8 the surface. What is the o 87.oz1jj kjcfbject's density?

  A 200-N object floats with three-fourths of its vhpif.edf( e1cb;ch 7 pt )a+/0yfs 0waolume beneath the surface of the water. What is the buoyant force on the obcp e17ab.+w hf(y / 0tfi0fc pds)eha;ject?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. Whj-ey5ji*n 6 jfat is the minimum area of the floe that will just support the bear in saltwater of spijjfen5-j y6 *ecific 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+b lonvbd8s-28u j8om flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. There is a 2.0 cm,pbr 61m p41et0vcfrn diameter restriction in the line. What is the velocity in this restriction, tb e046cfp1rnm1vr p?

  Water flows at 12 m/60tkyrqx w 1ay3y 8b;ms in a horizontal 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 pump to supply a drinking fo08fg s* ni8(:1kxe)zw,jmkz4sbbx etuntain with 300 kPa, if the fountain is 30.8ene(bft kkxj4g s)1 mwb zi,8s:* x0z0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of a water storako yp7k 7muk/-i1pv/t ge tank that holds water at a depth of 15 m. y77ip/ k/k1upkto-v m At what rate will water flow out of the hole?

  Water flows through a horizontal pipe of cross-sectionq;oqwo+,wr w c 1br2,nal 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 973lya*k/8d kunox lq+t j+l elong 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 suak/y7+ 98 kl doql3lxue* njt+rface 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 funnel.

  Suppose that the build-up of fatty tissue on the wall of an artery decrhult ktt+(hmv+ y1q45ch wt 50eased the radius by 10%5+hql+ cu1y(tw h40 kt5hmvtt . By how much would the pressure provided by the heart have to be increased to maintain a constant blood flow?

  Two narrow tubes aree5a 4l*jz7rjqe )*mnj placed in a pan of water. Tube A has twice the diameter of tube B. If water rises 24 cm in tube A, how high will it rise in tub)qnj e5*r* j47 elmjzae B?

  The surface tension of water is 0.073 N/m. How high will water rise in a capillc 30wj.nll7qku ,of/ cary tube.,fc3ll/j0okw qun 7c of diameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass0*wiv99*n y: ans ncfx capillary tube with a9cx90**fnws vn :ynia diameter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and the -ox- j*1zbsqfoudmw sz4*:,bwater 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 hemjsqdzo zo1-4* *f- xwub:,sbight of the liquid column in the tube?

  Consider a rectangular frame of length 0.120 m wn si4.5:*ktk3 zh h9h 8achgmand 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 forceh wmh:tkhkhna39 5 gzsc*48 i. does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and width 5 cm,; e,*ni fhbj r;st4m9b and is built in such a way that one of the longer sides can be moved without bursting the soerb;jm,b;9 hs tni*4 fap 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?