The three common phases of mkyi-+q 2m-hrc flj 9p7atter are

  Density is

  Substance A has a density e3icbu la0m+ b3t2 oe1of $3.0 \; g/cm^{3}$ 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;hq9pcug +h1a is not a unit of pressure?

  Consider three drinking gla4pz.yv; gz ;tasses. 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 the bottv4;p;ygz. aztom?

  What is the difference between the pres;1vmh( d+jr k m noyald/r6yk.g,8,qrsures inside and outside a tire called?

  When atmospheric pressure changely)m3v3rt y h/51dcoms, what happens to the absolute pressure at the bottom of a pool1hcro) t 3l3yvdmy5 m/?

  You are originally 1.0 m benm sa(4 61yy+/vf pnwhgeath the surface of a pool. If you dive to 2.0 m beneath the surface, what happens to twv4 h( +6f/ygypsn 1mahe absolute pressure on you?

State Pascal's principlehb /+cbz9y0a2vjjkz ;t 2rni )l+ol -f.

State Archimedes' principleh9bdg j 295y i3spka9tleu)c (.

  $50 \; cm^{3}$ 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 densif qa7 rp ;0:gox(t6 0zayr 2unrmv,blwull4/1ty, what happens to the buou qtal(4lwzv 0xg/r,l7:ar; rn omu y20b16fp yant force on it?

  Salt water has greater density than freshockb y)tu+wr: w;t( )4.lgs+eu(q1m e7o ewbb water. A boat floats in both fresh water and in salt water. Where is the buoyant for+b)4.w+s k(w 7:re uut ewbotmqg(;yl )1cobe ce greater on the boat?

  Salt water is more dense than fres)t;s ;luxzar22fv mo6h water. A ship floats in both fresh water and salt water. Compared to the fresrzlux ; 2s ;6t)2ovmafh 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 ) es3y6k4wqgc)1by m gthe buoyanw 1k)ymqegc3yb 4 )g6st force on the ball greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right nexpfqp,w3d738 tq ef:0q( ieyogt to a 10-kg piece of lead. Which has the greater buoyant force q yq73o( p3,e8:t fgpi0dwf eqon it?

  A piece of iron rests on top of a piece of wood floating in a bathtxsx br2+ xrap+w 9r8+x7pqy x)ub. If the iron is removed frp x r+xybx 27rpa+q+8s9rw)xxom the wood, what happens to the water level in the tub?

  A piece of wood is floatll czc4bb-s*8ing in a bathtub. A second piece of wood sits on top of the first piece, -bl *blc8scz 4and does not touch the water. If the top piece is taken off and placed in the water, what happens to the water level in the tub?

  Water flows through a pipe. The diameter of the pi7y2b a fc3 x8c6r0bujvpe at point B is larger than a8fx7b cj3r2 ycbu6av0t point A. Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a ;hn2rxy6 zwo 7yay7*h horizontal pipe. If the pipe widens to twice io 76; aywhzyy*2hx rn7ts original radius, what is the flow speed in the wider section?

  An ideal fluid flows at (yx(r*0o lq c o1ibc5n12 m/s in a horizontal pipe. If the pipe narrows to half its original radius, w0bc rcio(5lqn( y x1*ohat is the flow speed in the narrower section?

State Bernoulli's principl o-7hw/ /hgjsde.

  Which one of the following is associated witsn on-l7nackvy1( 9ky9u+ivcwe- /o4 h the law of conservation of energy in fly9 no4 n( 1vci -/y+ v9kseow-nlcuk7auids?

  As the speed of a moving fluid increases, the pressure in the ffvz+1 /v vj) sg4td1xuluid

  Water flows through a pipe. 6 sfil(mf )b6ei3ep*n The diameter of the pipe at point B is larger than at plfibnm6ei3e f* p()6s oint A. Where is the water pressure greatest?

  When you blow some air above a paper strip, thi)7ss/kff7 . nd9u 7mcwrfr6we paper rises. This is because

  A sky diver falls through the air at terminal7o6c hlk)8qru; afx*5iqg 4 te velocity. The force of air resistance on hio7; lxf quq4ige)k8ar56hc t*m is

  Two Styrofoam balls, of radii R /*hkek rjz* dzq pz8c4p n-04miim42t and 2R, are released simultaneously from a tall tower. Wp04c4dk8*q2*thprnz iz mj i /-4mzek hich will reach the ground first?

  When a small spherical rock of rad ct.l+n eq4cs9:imy8wp.itk0ius r falls through water, it experiences a drag force8yptc+c i.sl ik0.mwn tq:e49 $F=arv$, 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 tpjy.jzvd-7b-.lf2xyhv xt05l im* d 2 he flow of fluid through a narrow pipe? That is, if you made a 10% change in each of the quantities below, which would0yxvi5b-7 dx2jv*fp-l dj2mlt h.zy . cause the greatest change in the flow rate?

  Two horizontal pipes are .( o6xzm hes3hnxo+ c5the same length, but pipe B has twice the diameter of pipe A. Water undergoes viscous flow in both pipes, subject to the sxnx5o3o 6esz.h mh c(+ame 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 diametvy:5qc hmf 1r:x:lw d7 mg+m+zer, but pipe B is twice as long as pipe A. Water undergoes viscous flow in both pipes, subject to the same prm1q++y7mhfw:lrxdc g:z5v: messure 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, it often tastes greasy.t harax6k,. *5gomar9 g.ant7 This "greasy" taste seems to be associated with oil spreading out all over the surface of the soup, instead of staying in little globules. To us "physikers", this tmg.5orh6ankg,rxta *9a. a7 is readily explained in terms of

  When a tube of diameter d is placed i sg:rc.jhlb0;d;f j3u n water, the water rises to a height h. If the diameter were half as great, how high would the water rise?jc s 0fhrd 3:;.jb;ulg

  Certain insects, such as the water bug, are sufficiently lightweight that thefgc0 *-d7ropa 0o1keh)sy,y ky 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)k1 o-ghsp7yrcdko ,e0a0 f* y. 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 sufficihn2hpcr7/t/ jently 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. / n2h/tr7c hpjSuppose 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 sv)vio)txlwk7wz 94, u5q,j j4.00 cm has a mass of 30.0 g. Wha wt7)i5lkxjvqsvz, w4j )9 ou,t is its density?

  A liquid has a specific gravity of 0.357. Wha 5)qn4iq bqed:t is its density?

  A brick weighs 50.0 N, and med4 +nb;f:vl0dzx w fev6i0c,j asures 30.0 cm x 10.0 cm x 4.00 cm. What is the maximum+vz,6dn f0f l:wv;ji c4ex 0bd pressure it can exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each ,,x+m )yvv :m bdxzul4snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withsv8pfy7sqfk +: 88l / ntuub6nxtand at a depth of 120.0 m in thquv8 :bsff 8y7k/ n utl6p8+xne ocean?

  A circular window of 30 czy;yr+ 9k gs26;mhe5a 0 diksrm diameter in a submarine can withstand a maximum force ofa+zs hy6k;r05; rs dmkye gi92 $5.20 \times 10^{5} \; N$. What is the maximum depth in a lake to which the submarine can go without damaging the window?

  What is the gauge pressure if thsxx+bb(e/tf 4xsb- z(e absolute pressure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below tj w kj8yde mbjd y91k.7hp4k2.he surface of sea? (The de2byk 9k k.hjwpyj .m7jde148dnsity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15 0(1 7ab kogq39p:forgy-qova .0 m below the surface of sea? (The density of3p q9qoa -f0a 7gkro:(gbyv1o seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraul9-h qpzgfld0p1hq1p7ic machine. The small piston has arpg07ph zq9-hfpq1ld1 ea $2.0 \; cm^{2}$. If the large piston has area $40 \; cm^{2}$, how much weight can the large piston support?

  In a hydraulic garage lift, t26u2 7 n(9ipptp8dl0hask la8(hpze hhe 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 weighing 20,000 N on the large pist l 9 pih2he8 u28tashz067n k(pdl(papon?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter hydraulic piston. :hwhziv:65 9 lmi*rrkWhat force needs to be applied to a 5.0 cm diameter piston to accomplish 5hmv:*r6h klzi :ir9w this?

  The small piston of a hydraulic lif3b:wy wqnk i:/t has a diameter of 8.0 cm, and its large piston has a diameter of 40n 3qb:/kwy: iw 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 weighs 40 N in air and 30 N in water. What is the bw0k(q o b6aj7i 2/rnizuoyant force of t 6/a r iikzb(q7j0nw2ohe water?

  An object has a voluyib.bx nr f9dxd;)v -u9 5w4pmme 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 w5 lz c( pz-jb-nou(qk yq7;qo9hile submerged in water. What is the tension in the string? (The specific gravitqy zjn(; (zoqbou7l--95kpq cy of iron is 7.86.)

  If the density of gol0q5kk yirl))1 yv3gu 4h bq *omlb2n9dd 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 dzs(q 2ka/ o;t95tkz nsubmarine (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 wh(byxoy p ;t l1(c13earen it is in air and 6.86 N when it is immersed in watep 1orc3l(exy b1;(y atr. What is the specific gravity of the object?

  A container of water is placed on a scale, and the scale reads 120 g. Noqfwhlk*0r99 e v* 9xxbw a 20-g piece of copper (specific gravity = 8.9) is suspended from a t9xvh rk0qw*f9 el x*b9hread and lowered into the water, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum with a mac ( y-ez(d3,, frg)4 jmcsttxhss 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 leh .12lj 4dlio5x uioov.uq* k*ngth 12 cm and diameter 2.0 cm will just barely float in water. What is its moo * 4jux*duohlqk5li. .i 12vass?

  A rectangular box of negligible mass measures 5b x8gc myikhu a /:6ej4qv7hd6/km: s2d)/rw h.0 m long, 1.0 m wide, and 0.50 m high. h 6r//vmdcs k6exibk7uqyj 4ah/m:8)dw:g2hHow 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 surfi 3v7xqo3ps2dace of the water. The weight of the disd qpoxv73i2s3 placed water is 2000 N. What is the weight of the object?

  A solid object floats in wate- m 4jr8v9 4m;kyr5(uw :-e fgiiqavogr with three-fourths of its volume beneath the surface. What is the object's densitywf 5vg9(ay;-j rq imku 4-g vomer4:i8?

  A 200-N object floats with three-fourths of r jgofc9o51d9 its volume beneath the surface of the water. Wh9cdof 19g5o rjat is the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What is the9k 75 .uvyjcez/;gist minimum area of the floe that wilvyk. u /jsztegc7 ;5i9l 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 flow rat)2* ck4 mrzxovlc))qfi2;xku5s: tsie.

  Liquid flows through a 4.0 cm diameter pipe 21ibx *hlq 3 3f .hbhvple;:rdat 1.0 m/s. There is a 2.0 cm diameter restrictionhe prv;libh*: . 3dblhxqf312 in the line. What is the velocity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with atu5z.rbl:lv2 g *rre 8 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 sup st jed*)a3c3lply a drinking fountain with 300 kPa, if the fadc) 3l*tsje 3ountain is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bo(9oyh1zeg0(:puaod x ga(5iv ttom of a water storage tank that holds water aeh 0(zo 5ig(v px1uo(a dya9g:t a depth of 15 m. At what rate will water flow out of the hole?

  Water flows through a horizontal p.wgobaho3+ ,v6x: : rwbm vd2wipe 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 visco2/lbpw/ r/ -q1u03mzsxbcb kcbe0 -casity of 0.20 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, and negle bb s/e - zcbpu023kl- q/c0a/mrx1bcwct any drag effects due to the upper part of the funnel.

  Suppose that the builsycs)d7:,kmk.) 5 p l d8 +xqmi0lralpd-up of fatty tissue on the wall of an artery decreased the radius by 10%. By how much would the pressure provided by )ak.c)x7idkd0rspl m ,5 ll+qspm:y 8the heart have to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of water.xmv s0hx ,3s/q Tube A has twice the diameter of tube B. If water rises 24 cm in tube A, how high xqs m3vshx0/, will it rise in tube B?

  The surface tension of water is 0.073 N/m.kl 6b g;pbm:jz*.j vd. How high will water rise in a capillary tube of diameter 1.2 md .b6mjpvl z.kj;:b*gm?

  232

  To what height would water at 0 degree Celsius rise in a glass ca;v6+o fnz-q: bzq cev4pillary tube wi4:eb- c; z+vfqoznq6vth a diameter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water1(t4 9r t1ngnifsb(c d, and the water rises in the tube to 4.0 cm above tcing( t tr1(19bdf4nshe 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 height of the liquid column in the tube?

  Consider a rectangular frame of length 0.120 m and width 0.600 m with a souli5e u66).lltn 1je yap film formed within its confined area. If the surface tension of soapy water is 0.0260 N/m, 6y e)luln j te.i61ul5how much force does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and ab(9je;g5dx/ e5 wwet width 5 cm, and 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 i e5xj9bg5/wte ea;dw(s required to move the adjustable long side so that the frame is 12 cm square?