The three common phases of matter p39c. yq ew+)5lw(morw(ezhefep85s are

  Density is

  Substance A has a de7wn xuv a4 a7ca*llr(2nsity 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 pret3g aii4-hio /ssure?

  Consider three drinking glazndz1 rp+k0,/3hiiy4+ dwetv wm ))tmsses. All 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. 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 t3tipm e d)z1ki++ /hy,vn wdw)zrmt04he bottom?

  What is the difference between the pressures inside and outside a tijm3( qipj iz0g3ypwje;f* cvt) ws0pl16*uj 9 re called?

  When atmospheric pressure changes, what happens to the a1 ru,-w:bkrgxbsolute pressure at the bottom of1 ru:-kxw, grb a pool?

  You are originally 1.0 m beneath the s9 j awmq:*6ihqx t)h 2)wp adezibb;4+urface of a pool. If you dive to 2.0 m beneath the surface, what happens to the absolute pres mx2wb+h4za 6je h*:q dqa)tbp);wi i9sure on you?

State Pascal's principl wz24(j,vdsda e.

State Archimedes' principlexz n,x+ pdyqb2i,v,r* .

  $50 \; cm^{3}$ 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 dzz.now3)74u50 fnh 76 mebyf, z yelceensity, what happens to the buoyant force on l e6)f4y.obf7wc 3zunze50m7 ,hney zit?

  Salt water has greater density than fresh water. A boat floats in both fresh,0d)bqeu9tb3egeg 2t z2-orm water and in salt water. Where is the buoyant f-32ob eg md9z,ug bq t2)e0etrorce greater on the boat?

  Salt water is more densdux *x2k7 3mfae than fresh water. A ship floats in both fresh water and salt xfm37ka2x*ud 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. Whereguj*ws y1 h;a pa97n/o2la)wg is the buoyant force on the ball greateo /;)gyu2agn17sw pjw*h 9ala r?

  A 10-kg piece of aluminum sits at the bottom of a lake, g hx utble3rp (q)u(yfsp.454rg ce80 right next to a 10-kg piece of lead. Which has the greater buohlxu 4ue3gc)ft(e4( prb5rg yp8qs0. yant force on it?

  A piece of iron rests on top of a pi8lqeduz0a0:u ece of wood floating in a bathtub. If the iron is removed from the wood, what au z0ud08 el:qhappens to the water level in the tub?

  A piece of wood is floating in a bathtub. A second piece ofq-l,g h 8evqwo;o4l /y 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 water leq8oveq ylo /l,h4-gw;vel in the tub?

  Water flows through a pipe. The diameter of the pipe at point B isdttpi5zze -::ft+,p l larger than at point A. Where is the spel: dtptp t- :+5fezz,ied of the water greater?

  An ideal fluid flows at 12 zzy 61bhnh8(bv1id a197jjy -h9etzd m/s in a horizontal pipe. If the pipe widens to twice its j 9td68 ( hj1y7 d ny1zzvhe-hz9ia1bboriginal radius, what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a hc2ic,wiaw m 7+orizontal pipe. If the pipe narrows to half its originawa 2+cm7ci, wil radius, what is the flow speed in the narrower section?

State Bernoulli's principle8czg; /pc 7xu;u ki:hy.

  Which one of the following is associated with the law of cw(;lov:yemeq n)5:vc onservation of energy innm(:e:) qyc;5 wov elv fluids?

  As the speed of a moving fluid increases, k;tp+/vfqdxv r ho:nl0q;j.i(f, nlsl1: v+ r the pressure in the fluid

  Water flows through a pi6crm- z ,slra)pe. The diameter of the pipe at point B is larger than at point A. Where is the water pressure gcl zam)r6s -,rreatest?

  When you blow some air abwoz*o/ rp )9 jkfa5fe/ove a paper strip, the paper rises. This is because

  A sky diver falls through the air at terminal v v : vjdzc*ny;el62ts+elocity. The force of air resistance on him :en d6 z2 +;cjs*lvvytis

  Two Styrofoam balls, of radii R and 2R, are released simultaneously from w ++u dv3gopb u )sga*o81e;ega tall tower. Which will reach the gro; g vooweb+ )g3daeg p*+uus81und first?

  When a small spherical rock of radius r falls through water, nb4r kyf r 5od* ;s4e:eiww1,mit experiences a drm 4f,wk:b4ry 1os;ird e *enw5ag 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 narlhb mze9 off2 *jz-fab6 (.1virow pipe? That is,baz6vf.z fh f me*9- (lib1oj2 if you made a 10% change in each of the quantities below, which would cause the greatest change in the flow rate?

  Two horizontal pipes are the same lensyvpu2d ,, i. tguq3imj(vcplb;7c6 * gth, 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 ou q,;y. j7dli bcsvpcig2 *3v6utp(m,f 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 diame p2trc(zo0 rd 3el,jh7ter, but pipe 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 7d rr h3 (t,0pe2zcojlpipe B is Q, what is the flow rate in pipe A?

  When soup gets cold, it often tastes greasy. lnxpp p3u,f)n,k3 )6zslbx .p This "greasy" taste seems to be associated with oil spreading out all over the surface of the soup, instead ox )p3p zfxn)pkn.sl6 ,3l,bupf staying in little globules. To us "physikers", this is readily explained in terms of

  When a tube of diameter d is placed in wt d3vd lsld928ater, the water rises to a height h. If the diameter were half as great, how hi89tddsl2dl v3gh would the water rise?

  Certain insects, such as the water bug, are sufficiey(-rf-trk e;z 0 *h i,k92u/cijxuepo 2pobw8ntly 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 bug A, in all dimensions. That is, bug B is twice aiu wu,eyekzo2x0- -rb;cph 9j* pfi/(krot 82s long, twice as wide, etc. What is the weight of bug B?

  Certain insects, such as the water bu z:iux bhcm8r9gy).d/ kw7ck 6g, 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 water bug B is twice as big as bug A in every dimension. That is, bug B is twice as long, twice as wide,y9u:i xr/w zhdgc c76 mb)kk8. 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 pcp-af4)qpjs2 xv38sajc2* g4.00 cm has a mass of 30.0 g. What is itsj3g cpsj2*xc-4 afa)qsvp p28 density?

  A liquid has a specific gravity of 0.357. What isz0i8orrwjpvt94 w(lf6r8qid;(e*my its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm. What is the mb:) o/*ps f8,ech1m ,qetjzqsaximu1sehc:s, 8eb*o qpf)jtz/ q,mm pressure it can exert on a horizontal surface?

  A person weighing 900 N is standingnl(djo4 ,h59f xgen 9k on snowshoes. 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 in r cbs3ili3c.+ the oce.is3 cilc3+r ban?

  A circular window of 30 cm diameter in a submarine can wibut836+nbkfmz)v3 wk thstand a maximum force m3bw fn+v 36t)bku8zkof $5.20 \times 10^{5} \; N$. 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 pressurem1ns bmv.* l8o is 300 kPa?

  What is the gauge pressure at a location(vy3)v: kmiz j 15.0 m below the surface of sea? (The densit 3(j yvkzim:v)y of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0j21nl 4oqu1 gf m below the surface of sea? (The density oj124flo1unqg f seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on9thfy2t7ie ne bg((a3 the small piston of a hydraulic machine. The small piston has antt 2b9 fyigeah3e((7rea $2.0 \; cm^{2}$. 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 as0ry9 f(la: vk 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 orderf9 lyks(v ar0: to lift a car weighing 20,000 N on the large piston?

  A 13,000 N vehicle is to bx )z7d- y(* vccu1yilbe lifted by a 25 cm diameter hydraulic piston. What force needs to be applied to ayy1i 7bu zvc cxdl)(-* 5.0 cm diameter piston to accomplish this?

  The small piston of a hydr54jcfr ,et(eo aulic lift has a diameter of 8.0 cm, and its large piston has a diameter of 40 cm. Th4r ,oe5fetc(j e 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 30 N in wtudeffa t27g )2 uw l8pxt934kpy9w+qater. What is the buoyant force of the wad92t+ fxfu tw 8wga 7 l4ppq2ue3t9ky)ter?

  An object has a volum.hy nk rx50f6obrw,/ ye 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 whi0cac4tqm +byj x)4rxg :gu0mbe3 4s-ile submerged in water. What is the tension in the string? majcgg 4u0 bx -b4 x3)e:4t+sicr0mqy (The specific gravity of iron is 7.86.)

  If the density of gold is)pzk*h 20wc q:us;baj $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel subma .kfda s-,+vb:3 worjdrine (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 wh 7m5ko,m9pyjp en it is immersed in water. Whkpy,5mm9jp7 o at is the specific gravity of the object?

  A container of water is placed on a scale, and the scale reads 120 x,p 49tzhavy ; 5l:moez+m2fk g. Now a 20-g piece of copper (specific gravi2ktl:zpyo ;4evxf hz,ma9 +5mty = 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 denthqv-2rou6lp1g-51 o-z uj lmsity 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 float w z1bt0b n3fo6da w)r:in b: 1wbatzo)f3r0 n6dwwater. What is its mass?

  A rectangular box of negl)0s pqfa0 0 ppatjdgodt,7e+3 igible 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 s7f0qt d)psdao0jg+a t3pe ,0 pinks 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 iti n:9 z kfw.amhbbz(qx bg:m2e63,m5ts volume beneath the surface of the water. The wei(ezm 5bn.tba:mqzbwi6h3 ,:g9x k f2m ght of the displaced water is 2000 N. What is the weight of the object?

  A solid object floats in water with three-fourths of4n.rnw mu2yf8 4fi,sk its volume beneath the surface. What is w 4428i,.nms fy unfkrthe object's density?

  A 200-N object floats with three-fourths of its volume beneatmvr(ea4lp 3t*h the surface of the water. What is ther*vlap( et4 3m buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What is ly4i4 zm 0emg2the minimum area of the floe that will just supportl4m eym2 z40ig the bear in saltwater of specific gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a ce*uxngh+ m 7fne3 m dz8/,4 dkz12azkpipe of diameter 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter wv: neu5-2e pa-aoj6tpipe at 1.0 m/s. There is a 2.0 cm diameter restriction in the line. W u6p2-enoa5 vatwe-:j hat is the velocity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with a pressure of g7iuzl/2fw.55r 16fqcd j jrf$3.0 \times 10^4 \; N/m^2$. 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 f1hb:12fbj . p9pryxr b cl0o0countain with 300 kPa, if the f1pr0j09clf2r.xhypb1 c bb:o ountain is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs ji )ii(i)qr0y)lc1t g in the bottom of a water storage tank that holds water at a depth of 15 m. At what rate will water flqi it 0l)yi)j1(g)cir ow out of the hole?

  Water flows through a m*6 zpz*(yg mc66+kv:gd dzb xhorizontal pipe 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.s2tpf jno 7opxz;93b6ui)yc; 20 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, a)y3 67sofpc 2 jt;;9pxnubi zond neglect any drag effects due to the upper part of the funnel.

  Suppose that the build-up of fatty tissue on the walphj;*ly n3tbs u9b9ai)bl (e 1l of an artery decreased the radius by 10%. By how much would the pressure provided by thenjly bihs9(ab 1 ;tu)9bp e*3l heart have to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of water. Tube A hazx- d +jcpn:*mfsu)) xs twice the diameter of tube B. If water rises 24 cm in tube A, how high will it ri fxpn+xj )scduz)*-:mse in tube B?

  The surface tension of w:gf(k:thpm/ f;+ ,lu-dvcx opater is 0.073 N/m. How high will water rise in a capillary tube of dikt: ;hcp-lp f/(vd u:g,+omxfameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capillafa j1p8jg)bd* ry tube with a diamejja pf1bd*g8)ter of
0.50 mm?

  A narrow tube is placed vertip ro /1wmhhj.)cally 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 thj /m.1) hwoprhe addition of some soap. What happens to the height of the liquid column in the tube?

  Consider a rectangular frame of le7mzm3d:d81wqw4w pwx ngth 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 0.02d8zd:wwp1xmmw q73 4w 60 N/m, how much force does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has gh:*pu mesj4 /yjbb2 mns7*.a+ut;gzlength 12 cm and width 5 cm, and is built in such a way that one of the longer side.z+u ghsjm;:/*y* asjtmbbn74g pue2s 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 adjustable long side so that the frame is 12 cm square?