The three common phaseo2av c-7zryfzde 2*1+l56+syublh i ms of matter are

  Density is

  Substance A has a densit: (qbju jy49cay 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 of pressure?mw6gjbf)j(8g o l 9c.)yip x;u

  Consider three drinking glasses. All three havd:4(e uymmmmjc c:8ttp. i(3 tdlr (*ce 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 narro:pm(t3(mtjc ye m. m:l(*cd4ctidru8wer 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 between41vnjtp2 -n ls the pressures inside and outside a tire called?

  When atmospheric pressure changes, what happens to the absolute pressure v4dkwgmf*)*ii2+lb vb(7ku q at the bottom of a pool?2*k i4iw*lq fv7k )mbb (vug+d

  You are originally 1.0 m beneath the surface of a poolets,nb09k .cc. If you dive to 2.0 m beneath the surface, what happens to the absolute 90., sknc cbetpressure on you?

State Pascal's principll9ej p(2lnw zcz/q;( aiui; 5me.

State Archimedes' principex71 (*w1ih,lo:tnvqfg ,usg le.

  $50 \; cm^{3}$ 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 deepedw6p k s(m/tv+nda0e0 r and deeper into water of constant density, what happens to the buoyant forc /dtp0wmdv6k (s0+n aee on it?

  Salt water has greater density than fresh wate5jyy11+ kpusxs2)o k xy)s1)dpd ngq8 r. A boat floats in both fresh water and in salsjuy)yy 2s+pqs1)kg 5npd o8)k1d xx1t water. Where is the buoyant force greater on the boat?

  Salt water is more dense than fresh wat z 54k,/tkb(v. apkewger. A ship floats in both fresh water and salt water. Compared to the fresh water, the volume of water displaced in the sagp .e akbt/,(4 5wzkvklt water is

  A steel ball sinks in water but floats in ehq4r) qc t /q8, moegym;2ftp, +jd2ba pool of mercury. Where is the buoyant forcey d;jm,2t4h/gqc e pt+rfqm)q28 o be, on the ball greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg :x, u lrh(pis,piece :,xuispl (h,r of lead. Which has the greater buoyant force on it?

  A piece of iron rests on topk x:pgt b8c;3y 2mmjq n5iwa) cw-b/5h of a piece of wood floating in a bathtub. If the iron is removed from the wood, what happens to5: b 35t2cyg)b/ wc8mp-khqa mxin; wj the water level in the tub?

  A piece of wood is floating in a bathtub. A second piece of wkm,h( g vvk-a9ood sits on top of the first piece, and does not touch the water. If the top piece is takea-,( v kkmhg9vn 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 thanu4zi b tsp(8b8(wm3ms2 1lvgw at point A. Where is the speed of the watew4p(b1sv2usw(g3m t8 i zmb 8lr greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe widens to twc2)b6bh;rzm 4sfcs f g302 v 7txsjc1wice its original radius, what is the c b3ccfbf) jz s6vm4rxh;27g0s21 swtflow speed in the wider section?

  An ideal fluid flowsldrq)*( -gzxk at 12 m/s in a horizontal pipe. If the pipe narrows to half its original radius, what is the flow speed in the narrowe*z dk(q-xgl) rr section?

State Bernoulli's princsu u-p) 2.6nj(xtrmrajkv* )uiple.

  Which one of the following is associated with the law of conservation of energytk3aay rju;190/ lexp in flkljruapx9et3;/a0 1y uids?

  As the speed of a moving fluid increasrd7:x 8oe -u:gkti qfqp/p nky,+q0d, es, the pressure in the fluid

  Water flows through a pip,ot0em3pb hm0th,p (e 3lv+x pe. The diameter of the pipe at point B is larger than at p+ehvepm o,p (b l3x3 m,00httpoint A. Where is the water pressure greatest?

  When you blow some air above a paper strip, the paper rise:48 zr-pdb g1a pxui9es. This is because

  A sky diver falls through the aialddqc)9ng xxy 7 n rfmd;:;( o;3(kqkr at terminal velocity. The force of air resistanlx( 9; )ydxd: 3(q7kafnkond;mcg;r qce on him is

  Two Styrofoam balls, of radii R and 2i6w 6 hhs3f1ho:rvup+R, are released simultaneously from a tall tower. Which will reach the grouhh6hw63 +su:rvf 1 oipnd first?

  When a small spherical rock of radiumgcw2hq,.9 rq s r falls through water, it experiences a dragrc. hqwg,mq9 2 force $F=arv$, 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? syahuma39-xi 5+ qcvj,+q-px That is, if you made a 10% change in each of the quantities below, which w+qc93+xau--aq 5vmyish jx p,ould cause the greatest change in the flow rate?

  Two horizontal pipes arsvoxlc, 8+6i uh,1 viye 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 of the pipes. ,h,i+s8cvvolu6xi 1y 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 tw 5j-6d6fce.vqjjzh -g u9n8 uwice 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 .ndz uc5g -6qwju96hjvef-8j flow rate in pipe B is Q, what is the flow rate in pipe A?

  When soup gets cold, it often tastes greasy. mjsct,i ay,96z g.jfs 6((ak gThis "greasy" taste seems to be associated with oil spreading out all over the surface of the soup, instead of staying ig69atm,,6a(js.fz( kg yj i csn little globules. To us "physikers", this is readily explained in terms of

  When a tube of diameter d is placed in water, thek/fj6 fmiqkt 4b)9/y v water rises to a height h. Ifk v 9y)ji/fmbf6kt/4 q the diameter were half as great, how high would the water rise?

  Certain insects, such as the water bug, are sufficiently lightwesv+t m(g64 lgeh:0bib ight that they can run 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:+ g(g0b slieb46hv tm. 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, arq4 mvya;z) 0o8p)36grvjhupv e 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 bu;0 qmpho3g)4a vpj8 6ry zv)vug'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 mass of 3(;olmlp6k w-nh 8r5vc0.0 g. What is its dens 5rncl6oh8vpl m-;(kwity?

  A liquid has a specific gravity of 0.357. What is its rpsolzu6f 2qa6 b95+ow7p 2ohdensity?

  A brick weighs 50.0 N, and measures 30:a9wyut 2wp; 5l7kovd.0 cm x 10.0 cm x 4.00 cm. What is the maximum pressure it can exert on atu9p2kwow ;5:7lvdy a horizontal surface?

  A person weighing 900 N is standing onkd w/e3m6/)l cq4rajt9zta 4u snowshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand vlo8un w k4ey)+7l qy3at a depth of 120.0 m in the ll84qyny o3wv )e+ 7ukocean?

  A circular window of 30 cm diame /uos9qarml7d17k vm :ter in a submarine can withstand a maximum force1:7kva/mqs9 urdm 7 lo 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 absolute pressure is 300 :z,,smfq2tqc kPa?

  What is the gauge pressure at a locatre9sqnzu,89g 6c(p vcy2 fbp/ion 15.0 m below the surface of sea? (The density of sea2p 6 9zfv/ ,yngurb qcp(9sc8ewater 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?eij8 m qrpw6 t7a8n93l (The density of seawateqtip j88lrm 7e6wna39 r is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hi0dl gdapd e3r(*0 vl)g-y q/mi)hjn4ydraulic machine. The small pistoy jmv(dhg0)/n adip *l3d0lq)r4 gi-en has 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 radius owiyzs)9ch j 1)f 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 carhjcyi w)s9 )1z weighing 20,000 N on the large piston?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter hydraulic piston. Wha/ sp)hw6e,tm ft force needs to be applied to a 5.0 cm diameter piston t,w tpes)f6m /ho accomplish this?

  The small piston of a hydraulic lift has a dia bxd- ub50d8zemeter of 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a ldb0e5-d8 uzbx oad 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 82a) f dgnzzig oi:2bj)6h w8mthe buoyant force of the wate z)owfji22 a)n6:b8mg idhgz8 r?

  An object has a volume ew: .8hxm tnd;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 by a string while submeu6 0dqfxa:,k: .fm0slix1o zhrged in water. What is the tension in thexqxsl6:odmu,z: f .kfiah 010 string? (The specific gravity of iron is 7.86.)

  If the density of golrj00b3 lnrqs,a: fj o7d 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 steela9;47mq eqmyk submarine (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 f dn*k.vs7 nn/immersed in water. What is *nkdnn7 fsv./the specific gravity of the object?

  A container of water is placed gv juspw01 i6s))ky:non a scale, and the scale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and lowered intoug:vn i6 s)pj0w1 y)ks the water, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum with a mass ofe)duh kv. *c;f 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 anduv+7r; w j;rtip36pax0rrmr 2 diameter 2.0 cm will just barely float in wavmruj;6rxa7wr 2i;rt rp+ 03p ter. What is its mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.lkw9 uc,9 46btusp4m+m)u rlk0 m wide, and 0.50 m high. How many kilograms of masskml u4us b lupc4t),kw9 r9m6+ 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 half its volume beneath the surface of the water.dc n ,;-xquc 1c44jyj5sscdun x0,r,c The weight of the displaced water cxsj,r c4cqcndsu j1,d,0;y uc-x5n 4 is 2000 N. What is the weight of the object?

  A solid object floats in water with three-fourths hmp;8 rkj2v 6j:)iamqof its volume beneath the surface. What is the objec 2jv8ak);mpqhj:i6 rmt's density?

  A 200-N object floats with three-f1i ge i6heog2t-s4+, kbo8cyfourths of its volume beneath the surface of the water. Wy 2-i4f81 oteego +s,cgbh6ki hat is the buoyant force on the object?

  A polar bear of mass 200 kg stands on ank93q uib /+y/s9pwgwaa2 tvb 9 ice floe 100 cm thick. What is the minimum area of the floei9/ 9 swqbk2agvbp +wty9u/a3 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 flowehg 5xjh7-e)m rate.

  Liquid flows through a 4.0 cm diameter p 2h 0+ e)evcjc55uyjlsipe at 1.0 m/s. There is a 2.0 cm diameter restriction in the line. What is the velocity in this restrictihsje+ 0jv5 cl)uy5e c2on?

  Water flows at 12 m/s in a horizontal pipe withix6-xohl6 dw x3;/ cjo 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 fountainikw wq89f56mfa7ce 0bpd8: jt with 300 kPa, if the fountain is6wktc8wbi 98fm5qa0fp7j : ed 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottom .dr+lxg-br a,af j(, pof a water storage tank that holds water at a rr ,da +. -,apgjfx(lbdepth of 15 m. At what rate will water flow out of the hole?

  Water flows through a horizontal pipe of cross-sect4:gjmduq 1q:ep:-sfws jcn ) )(*ta/h e wfs1jional 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 to phf8b9 ppfm3i6o fu )m)our 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 pa9hiff3)p 8fbpo)6um mrt of the funnel.

  Suppose that the build-up of fatty tissue on tx1j)pfw,,u ps9r3cuszy7 mzp(;i qf -he wall of an artery decreased the radius by 10%. By how much would the pressure provided by the heart have to be increased to maintain a constant blood flo(9wp,rz 7 uj; cspfpfi3u-z1,) ymsxqw?

  Two narrow tubes are placed in a pan of water. Tube A has twice the diameter oh6e6z:nb6 fa9x x .fwgf tube B. Iz.:fe96gfha 6xb6nx w f water rises 24 cm in tube A, how high will it rise in tube B?

  The surface tension of wate ,j46kn ebz,ygr is 0.073 N/m. How high will water rise in a capillary y,gz6b4, je kntube of diameter 1.2 mm?

  232

  To what height would water at r2 qcp3cy117ms 4)bg5ufvgjln1 yqa, 0 degree Celsius rise in a glass capillary tube with a diametena1yv51)l17u y r ccb2 ggmf3,qp4jqsr of
0.50 mm?

  A narrow tube is placed vertically in a pan oel+ iw e2ktk),f 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 i w+tke)2elk,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 m1 pp3qr + m28zh j)kgzyrgn43z 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 force8 p2h+)zqrmg4g k3ny 1rzjz p3 does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and widthum 5vgur7mq8 c7,zq w; 5 cm, and is built in such a way that one of the longer sides can be guzrqm 7c,vmu875 q; wmoved 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?