The three common phases zr-u 3my /ijz/56bsgs of matter are

  Density is

  Substance A has a density o0en 5so 6ce m.0-zrcoxf $3.0 \; g/cm^{3}$ 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 un am82cd vg7y2nbdg;;f it of pressure?

  Consider three drinking glasses. All three have t/ifa-euy)mpxln. pudq -0,4 jhe same area base, and all three are filled to the same depth with water. Glass A- dm4u p/n0yf laxi.uq- ,pej) 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 outsid*w6.mqr k b,tne a tire called?

  When atmospheric pressure changes, what happens to the absolute pressure at the * upwf,o 86bxhsqen-b c5be3)bottom of a p6ebw-*5one)fh3,cx8 bp u bs qool?

  You are originally 1.0 m beneath the surface of a pool. If hk9156 px5g-gkze jxsyou dive to 2.0 m beneath the surface, we5 6xgxsjgpz9 -k51 khhat happens to the absolute pressure on you?

State Pascal's principle.1hx:l 7 nx:wqk(mx hu/

State Archimedes' principle.t78pf;bunh uwsf9j 1 ;

  $50 \; cm^{3}$ 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 deepa jv2 4wko66yuer into water of constant density, what happens to the buoyant foo yk62w 4avj6urce on it?

  Salt water has greater density than fresh water. A boat floats in botn0a+ wjlwl 71eh fresh water and in salt water. Where is the buoyant force greater 1+7awlnej0 wlon the boat?

  Salt water is more dense than fresh water. A ship fload pdpu1z xf:34ts in both fresh water and sa z1fdp4:dxp3ult 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 mercury. Where is thedhic*t8bp7t (q5:q 5bwrwhb + buoyant force on thepi5bd8 7r q *w+ qt(wbhchtb:5 ball greater?

  A 10-kg piece of alum e.:w xvdtn l p+-dudoe/bx(zlex *.aps+h77.inum sits at the bottom of a lake, right next to a 10-kg piece of lead.ep+p :.t ex*-vne/ w xbzsd.d. 7ohx(+all7ud Which has the greater buoyant force on it?

  A piece of iron rests on top of a piece ; u-c (tq7hb4rn c4bntc+ p3arof wood floating in a bathtub. If the iron is removed from the wood, what happens to the water nt3 4crb c7+bqnph;(t4 -r ucalevel in the tub?

  A piece of wood is floating in a bathtub. 0x3yg4juq3b e A second piece of wood sits on top of the first piece, and does not touch the water. egjubx30 q3y4 If the top piece is taken off and placed in the water, what happens to the water level in the tub?

  Water flows through aqj+yx otx0qzw g7 3+(z pipe. The diameter of the pipe at point B is larger than at point A. Where isqzqxwj o(7g 3+z0+ tyx the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe widens to*xm2ql yh* kpg7(j a)i twice its original radiuy7ixm (2lgpkh)a* jq*s, what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narrowy39 y a3zyw:0ywxyyadkj 6u* pyfx+tvo6*)5 ds to half its orizykx6:v*up)awy j x yy 65t3 +w3fy0dy *y9aodginal radius, what is the flow speed in the narrower section?

State Bernoulli's princi827kmi1 ff7b-uq ydpkple.

  Which one of the following is assocdh3znsi 8, /tciated with the law of conservation of energy in fluids?,ht8/ s cnz3di

  As the speed of a movii:bx(lbmv:urh 1d9n 6 ng fluid increases, the pressure in the fluid

  Water flows through a pipetqek+8l95gy8tp7m z3 obrm2 a. The diameter of the pipe at point B is larger than at point A. Where is the water presset rm29l8mztyq5pg8 b+ak37oure greatest?

  When you blow some air above a . tfikzme4vit*lmg36 y k(4q :paper strip, the paper rises. This is because

  A sky diver falls through the air at terminal velocity. The force of air resistqc-zo ,mxd i.hdy (s8)mq* ct5ance on him isomq*tx5hqis my-) d(dcc . ,z8

  Two Styrofoam balls, of radii R and 2R, are released simultaneously frovb uq b)5qr5 mlj mc-(5qh*so9m a tall tower. Which will reach the hj*u5b rmvoq5cqm qsbl)5-9 (ground first?

  When a small spherical rock of radius r falls thr0ml;-bpp8ilm5 t )brr ough water, it experiences a drr b)b-ml5mipr;8 ptl 0ag 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 f/0i *fvy-a eyajex1j*low of fluid through a narrow pipe? That is, if you made a 10% change in each of the quantities below, which - yavi1 ex* 0e*jajfy/would cause the greatest change in the flow rate?

  Two horizontal pipes are the same length, but pipe B has twice thwgi-6biu 6p4p d+f. ikd0fk4 ve diameter of pipekpvwdgf 4 ifi+i4.pu -b60kd6 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 is the flow rate in pipe B?

  Two horizontal pipes have the same diameter, but piuft(xtk 80(w(z g eem1pe 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 the flow rate in pipe B is Q, what is the flow rate in px g(z0ue1 ((twt8 efmkipe A?

  When soup gets cold, it often tastes greasy; t epwndcd9w1(:f)bu-l ,e *8ofg3b uvz*gfx. This "greasy" taste seems to be associated with oil spreading out all(fged f -z n1 ve8wx )u ptbbwcugof;l*,:d93* 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 dw; 8,kcyhe (ae is placed in water, the water rises to a height h. If the diameter were half as greate h y(;ckew,8a, how high would the water rise?

  Certain insects, such as the water bug, are9qlb; x;4qfby fz:y ,-s,osiz sufficiently lightweight 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 fsqzqxs 4,y:f 9lo;z b -iby;,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 ny 4sjq2a/ a/9na:zcrsufficiently lightweight that they can ruq j:a9 2/csn/4nrzyaa n 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, twice as wide, etc. What is the maximum upward force on the feet of bug B?

  A plastic block of dimensionsys *rc; px;en5pr3 4fs 2.00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. fs34epxrsc*p ;rn 5; yWhat is its density?

  A liquid has a specificv,u -yfrkg5;xpxbo6(;gi kd8 gravity of 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm. Wh wov 2.14oet duvsxs4*at is the maximum pressure it can exert on a horizontal surfao4. eovv 4ut1xsw* 2dsce?

  A person weighing 900 N is standing on gsaxv +b)3; 8h ;;.olhyc lbypsnowshoes. 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 ofdo2y7fzjr- ) qj+j6jn *tj- jr 120.0 m in the ocean?2rj 7n)qdfj+ 6z*jrj--jo tyj

  A circular window of 30 cm diameter in a submarine can withstand a maxim6 ezo rc0mxtt *t5,ah2v+ha.ium force +rt0exaih.6t , 2*t zoa5mvchof $5.20 \times 10^{5} \; N$. 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 300l* * l x2y0b+rrn3iura kPa?

  What is the gauge pressure at a location 15.0 m below the surface of sea? elycdue;;vyk6/5k8r d crr01 (The density of seawater iv 5cde0/c8rurd16 r;y;yke kl s $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m belo(i;uo:/zld)aeqf / dyw the surface of sea? (The densiia/elfy;/(qd) dozu : ty of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on tha5wroj +0 qrrsf 71fm1. 18u a lo9vgc/zzvbx6e small piston of a hydraulic machine. The small piston has vjrfu oraz7 wx s5fr1v+c 9a1q 6bo 10z/l.m8garea $2.0 \; cm^{2}$. 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 hastqvg0n.ay 2 1kf mda/8 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 weighing 20,000 N on ./k ag1 nafmq82dvy0t the large piston?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter hydraulic piston. Whati.sl* m 6,cpy3p7-exay 5sksj for,lyep-k *sxsc yapjs5im 7.63 ce needs to be applied to a 5.0 cm diameter piston to accomplish this?

  The small piston of a hydray7dy u m r8uw; ,ik)eoqxo551vy;q/q culic lift has a diameter of 8.0 cm, and its large piston has a diameter/r8uyqx)wyk ;y7u i mqdq 5oeo1,v5c ; 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 weighsc5-eyg1eqi e7*o cdn 2eb8/ ze 40 N in air and 30 N in water. What is the buoyant force of the ze2 eie-gyodbn q1ec /e75*c8 water?

  An object has a volume of;i ;e)rc,wta qy-:gf r $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder ofrr38sgpgu0 7 a,rtzllp cz 636 solid iron is supported by a string while submerged in water. What is the tension in the string? (The specific gravity orsga p 3,r t3lgp6lzru780c z6f iron is 7.86.)

  If the density of goly nhrw(8vw g+b-v(6 mud 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 (denl.3 co/aq.rov.ss3 rel 2fw;v8t v 9bxsity = $7.8 \times 10^3 \; kg/m^{3}$) 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 N0 kbzxxo((mirlxx /z 2)a3c.f when it is in air and 6.86 N when it is immersed in water. What is the specific gr 3brlx02 kxzim(.c/azo(x x)favity of the object?

  A container of water is placed on a scale, and the scale reads 120 droa3zvj*c* 8 0l5uod g. Now a 20-g piece of copper (s3az5j0dr olc* ovu 8d*pecific 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 mass of 1.0 kg and *9j9e)bs6 fiq dsag);(ctkladensity 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 andcml 9q kd9 kv;t.o9r0i diameter 2.0 cm will just barely float in water. q;tm0ckr.9i99dok lv What is its mass?

  A rectangular box of negligible mass measures 5.0 m long,ku6 2 w,u1 c vu:)mycp3kglp/b4 peb(a 1.0 m wide, and 0.50 m high. e,2) kub4uv lw:k/cbm yg(apc6p up13How 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 half its volume beneath the s,3+ go57d tqzaqmnuj-rm/jr4urface of the water. The weight of the displaced water is 2000 N. What is the qdj7ng,/j +m tu4ro armq53-zweight of the object?

  A solid object floats in water with three-fourths of its volume beneath thep ig 9k5j yhh-d)o(g2p+u7gi e surface. What i 9j phy)o52hd ug-ggip k+e7(is the object's density?

  A 200-N object floats with three-fourths of its volume beneath the surface of tzmk*2n scrhj/ l:mdi -z90gk.he water. What is the buoyant force on the object?- 09/isgnk: j *d2mrkmlzc.hz

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What is the misdgz 7 jtj69p1i ;em o51-ggtnnimum area of the floe that will just support the bear in saltwater of specific gravity 1.03? g1g;tt56 znj 79gjesd iom-1pThe specific gravity of ice is 0.98.

  Liquid flows through a pipe of diameter 3.0 cm at 2.0 m/s. Find the flow fzj s88;zwobyba9 +p0rate.

  Liquid flows through a 4.0 c2o9qg;rshu. a9 lg8dk- g /y/xqip4 fgm diameter pipe at 1.0 m/s. There is a 2.0 cm diameter restrictg8 .h9ir/2d-/ql oqku9sygg;fgx p4a ion in the line. What is the velocity in this restriction?

  Water flows at 12 m/s i17d:hbydteucg +7dw5he,r w, n 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 hus/lgtzd/*8 for a pump to supply a drinking fountain with 300 kPa, if the fountain is 30.0 m above/ h*/z8tlgdsu the pump?

  A hole of radius 1.0 mm occurs in the bottomag 0t2r8 u(f fkbjj7(s of a water storage tank that holds water at a depth of 15 m. At what rat a(skuj8ffbt7 (0gj2r e will water flow out of the hole?

  Water flows through a horizontal p*685s.mh tbf tn+g xtx-bzkp6ipe of 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 longx;dk ;b8ihbffjf9 :+ e 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, af b+9xib :h;f;j8edf knd neglect any drag effects due to the upper part of the funnel.

  Suppose that the build-up of fatty tissue oe; 4:r6kir ii0ria1wb0zp j2y+mxnz;n z ;nf.n the wall of an artery decreased the radius by 10%. By how much would the pressure provided by the heart have to be increased to maintai0i0:nnnri;.xjzfemazk zpry1i r; 2bi 4w+ 6;n a constant blood flow?

  Two narrow tubes are placed in a pan offxcfedh4(*bm mt 9 rse 0;k2q+ water. Tube A has twice the diameter of tube B. If water rises 24 cm in tube A, ftm(m +0; e4f*eqc hb2rs9dk xhow high will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will water8y yj9scw+)xjhs:: jr rise in a capillary tube of d):+yj9rcwx: jsj8 ys hiameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius ris.3laokz 6t bf+v-vde; e in a glass capillary tube with a diame v; 6az.eo lf+t-3vdbkter of
0.50 mm?

  A narrow tube is placez trmhl ,-0dqzd9l/4s d 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 is lowered to one-half its original value by the addition of soh sqd/09,r ml-td4lzz me soap. What happens to the height of the liquid column in the tube?

  Consider a rectangular frame of length 0.120 m and width 0.6,3spitc5/50k0 9 soxqcxj o qz00 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 tc3o qt 0sxi5k 5qz/pxc,j9 s0ohe 0.600 m side?

  An adjustable rectangular frame has length 12 cm and width 5 cm, a3riadq.u21gq*d9)9 hyq glfm nd 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 tension 0.026 N/m. How much work is required to move the adjustauh9g*q d.qd2 i3rmy)lfgqa1 9ble long side so that the frame is 12 cm square?