The three common phas 97aoxa4dr1p.lj ruh8es of matter are

  Density is

  Substance A has a density9dynw b* ;pcz95pprj5 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 unit1uc7y2w r vi.y of pressure?

  Consider three drinking glasses. All three have the same area base, and all th 1m:azuc 3/ x*ti ouxij0cht73ree a70 ict tu3mu1x* ja/:oc3xzih re 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 bottom?

  What is the difference between the prejz 7g w6tjmk(wa d,6h1( uynd(ssures inside and outside a tire called?

  When atmospheric pressure changes, what happens to the absolute rjdxcn93 1 a6xrk; zr2pressure at the bottom or2r j;6acx3 xnk1zrd9 f a pool?

  You are originally 1.0 m beneath tqi fpn54;dbl* he surface of a pool. If you dive to 2.0 m beneath the surface, what happens to the absolute pressure on you?b;pnl5 d f*qi4

State Pascal's principlel94xov lq +o;x.

State Archimedes' priny,c ,pdiw2boqg upuxw5br6 uzd:5129ciple.

  $50 \; cm^{3}$ 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 density, what hap+mwp wxmei - (dgm-;m2w i), rmyot8skie9,/npens to the buoyant force on it,ed,rm +o wxi2mi pkew-)(m;mgm ty /-wn98si?

  Salt water has greater density than fresh water. A boat:yocw4 q4b po:,m7ks9cnu7a q floats in both fresh water and in salt waterm:cyuqk4qc7o:7 9a4nbp , sow. Where is the buoyant force greater on the boat?

  Salt water is more dense than fresh water. A ship floats in boo1 q 4v9sjpk8m(4jrmhpz4 j-bth fresh water and salt water. Com4hkm4j4bj1 - j9zvp(8rqopsm pared 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 4g. sj*fs2awp of mercury. Where is the buoyant force on thg*.4sswjpfa 2 e ball greater?

  A 10-kg piece of aluminum sits at the bottf(x8e;ojfoqwf1- ;7h5 bonahom of a lake, right next to a 10-kg piece of lead. Which ; foooa jxnf;bh8h51(-q7fw e has the greater buoyant force on it?

  A piece of iron rests on top of a piece of wood floating in a bathtub. If thej,h3kleq4 .uh2j/id l iron is removed from thdhq k,le ju4/lhi3j.2e wood, what happens to the water level in the tub?

  A piece of wood is floating it*mvd4 9taqob :qh2ri3b8ezln , 7t z3n a bathtub. A second piece of wood sits on top of the first piece, and does not touch the water. i82bmnbath3zrqte 3 zqt: lo4*,7d v9If 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 diap hh4c uy -:eor-m*v8hmeter of the pipe at point B is larger than at point A. Where is c8*-ryev4h uh op-mh:the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe widens to twt+y:ejl:0rrww. h2ku ice its original radius, what is t lr+:0.kw:htw2y urj ehe flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontzmumvql1n5r/nt om . )a)t7w5al pipe. If the pipe narrows to half its original radius, u)q 155 zatntvml)rwom/7n.mwhat is the flow speed in the narrower section?

State Bernoulli's prin2z1mv hrg/ 2xfbth65q ciple.

  Which one of the following is associated with the law of conservation of p*zk4;h-8wa5utsbmm9nurp-cwseruh ;4 e8;energy in 4smh-wes8eh;;49uzm;kr8r 5 *unt a u-p pc wbfluids?

  As the speed of a moving m1kf-)zu(d iad h6 dk.0p*wuc -o ur5ffluid increases, the pressure in the fluid

  Water flows through a pipe. The dia udl .-yj.upm5c70 o/dsrg da,meter of the pipe at point B is larger than at point A/g5uud 0.dc, also7yp-r dj m.. Where is the water pressure greatest?

  When you blow some air above a paper stripv*o3r *jim:hr2+y /qjnxlce 8 4fcc v;, the paper rises. This is because

  A sky diver falls through the air at terminal velocity. The ekkyw: 3g0e j2force of air resistance :y 2eg3kkwj 0eon him is

  Two Styrofoam balls, of radii R and r m69ann0y()dhar wj-2R, are released simultaneously from a tall tower. Which will reach the ground first?myrja0 wan9d n(-)6r h

  When a small spherical rock of radius r falls through water, it c t9 pf.1px28 oej9tjgexperiences a drag f j2otf 8e99 .1tpjgcxporce $F=arv$, 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 f lwi)43eipatdmq95b p2s*wu 0luid through a narrow pipe? That is, if you ) iium2 b 53s0w9dpta eq*p4lwmade 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 length, but pipe B has twice the diamets6dznio4h20qd y6 g*ser of pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure differe ods0dg zyis24qh*66n nce 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 B is twice as long q;m 3zl+c6my2a 4d amaas pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the lengths of the piml;32qammz6 +4dc aa ypes. 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. fbm3e+ 4pa7i- oet6t x--,2pohxtn hz This "greasy" taste seems to be associated with oil spreading out all over thozaex7he i+fpo3-t46-p t mb-x ,nh2te 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 d is placed in water, the water rises to a height h.t 81eaz/zzjl5 If the diameter were half asz18azje lz /t5 great, how high would the water rise?

  Certain insects, such as the water bug, are sufficiently lightweight thak*643pfwvyjo fi.; j/fw os v,t they can run on top of water without breaking the surface tension. Water bug A has weight W. Water bug B is twice as /;,fpvf wyv 3osijf*jwk.6o4big 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 sufficientl4 l4aaq sn6vt gwtf.6sx:y+b f7l3/oly 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 f xg6lnsba.7 4lf:4ts l6yqa to+vf/w 3orce 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 dimensions 2.00 cm x1n lbcv2r 6s0)c lwh5c 3.00 cm x 4.00 cm has a mass of 30.0 g. What is its decl1 b cv)6l 2hc0n5swrnsity?

  A liquid has a speciftwb o4mk 1az0d 7l6 nqfa.i1/tic gravity of 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.0;.mc u fvex19mutv .y90 cm. What is the maximum pressure it ca vtu um;x. 9m.yce9f1vn exert on a horizontal surface?

  A person weighing 900 N is standing on sn:qecta cwda;+8bu72 eowshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand at a de3o ;co13,mndb itgj g83sba;qpth of 120.0 m in t cjqbgnob3o1s8,;33 gd mi ;athe ocean?

  A circular window of 30 cmba7gujo -4r qao7z)4u diameter in a submarine can withstand a maximum force o)rua7 4gzb4j- qouo7af $5.20 \times 10^{5} \; N$. 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 ye9s6 kb56km0vvxx1v2 ncav; absolute pressure is 300 kPa?

  What is the gauge pressure at a location 15.0 m j sdrxv omn 9i:4l c3o6 (7mae,5yyp7xbelow the surface of sea? (The density of seawater i75,a7xej n rvy63l (od m cmo:sy9xpi4s $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m be8bd nhf 6zgsn0f/fo -7low the surface of sea? (Thdfghzbs7 /0 off6 -8nne density of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the smal1-qzqz;4yatp/sc gs 6l piston of a hydraulic machine. The small pistoq y64szcs1;a-qptg /z n 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 o 4h0h0u/lqnz,i -lh-lhhr. xb 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 cnzh l0.x-r/ hh0ilhl4 q ub,-har weighing 20,000 N on the large piston?

  A 13,000 N vehicle is to be lifu7tkk :/0ygif ted by a 25 cm diameter hydraulic piston. What force u k/ i7ty0gkf:needs to be applied to a 5.0 cm diameter piston to accomplish this?

  The small piston of a hyw;l9;0 mc4g6jdq woajhlu 3e( er7y(idraulic lift has a diameter of 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a loaye j;da(;g j30lqwmro(7w h4e cu6 li9d 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 ia2uvi3 zl,/nr3( ef ann water. What is the buoyant force of the w,(r32 zn l3a iueav/fnater?

  An object has a volum;4bc vnokl- 8r2sqjx(e 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 supporu) x;x p2(hmvtlq(x9*/g;brq 0fhfiu ted by a string while submerged in water. What is the tension in the string? 9;qvu xmhxrf)0(l2tf; (u*hqix bp/g(The specific gravity of iron is 7.86.)

  If the density of gold is , kwk l ),(lrij.s8,wliwdak9$19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarineh,bt3d1394d 3+u tep ompua oo (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 7.8fu5:n j jmayi,p j)o:t5zla7e; s7i q64 N when it is in air and 6.86 N when it is immersed in water. What is the specifj:n y:i;a6j,am7ti fqpuz j )e5s l5o7ic gravity of the object?

  A container of water is placed on a scale, and the scale reads b/s+hfl ggtxkn 6u/i7*dw8e7tb 4*zm120 g. Now a 20-g piebuzn/fkh gg 77/xsl*tw6e 8+t *4idbm ce of copper (specific 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 density ofsou5za7mx. thkgru09-((i g f $2700 \; kg/m^{3}$ 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 diametepp*w n*la+y;z/ 6tyrd r 2.0 cm will just barely float in water. Whdn /ylzy+ rwtp*6*a;pat is its mass?

  A rectangular box of negliycmdf+zu-9fvn-9 cwud 840 v1z8us umgible mass measures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of-ncmfdwcyz uu-0v4 vz us98d +umf918 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 surface of the water. The 4a,sp4 zn-vp kweight of the displaced water is 2000 N. What is the weightv -4,pa p4kszn of the object?

  A solid object floats in water with three-foukvuir19/wq-,sp v5km rths of its volume beneath the surface. What is the object' uv9,5 r-vpsmqk1k iw/s density?

  A 200-N object floats with t1osb/ s -pij mfho71-hhree-fourths of its volume beneath the surface of the water. Wjsm oo1ip -f7h/1hb- shat is the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What is the min(q9ol7fych0gl9nl -bili9 5 g; c y)ibimum area of the fny q)959ilh9lciibg;7 cb0l( l gyo -floe 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 f,.jk -: sfxwo4ht rmpu2as0,nlow rate.

  Liquid flows through a 4.0 cm diameter pipe a h shh glyma*m/uw)/2itk-qh7 y*3a,j vyi5e 0t 1.0 m/s. There is a 2.0 cm diameter restrictionjh2y3hekmiusy7ht-li y*5*q ) gw ,/ /0mahav in the line. What is the velocity in this restriction?

  Water flows at 12 m/s in a horizontax6 o1fbz5g vo7l 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 +wa l5*k,jch* zo*6kqn :ix9p fe5w agdrinking fountain with 300 kPa, if tha6 cn5z95*ewikwxqoga, *j* f: +lp khe fountain is 30.0 m above the pump?

  A hole of radius 1.0 mm occuwl, q wpdw;:.nrs in the bottom of a water storage tank that holds water at a depth of :dww qn.;pw ,l15 m. At what rate will water flow out of the hole?

  Water flows through a horizontal pipe of cross-sectiu fuu, hti1 fgin2f*7(onal 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;8uwfl745o.ay,d u4kltt/:r qics2, r jbrxx 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 neglbk8l; uay57 ru4fw sxjc,q:r4/lxrit. to,2dect any drag effects due to the upper part of the funnel.

  Suppose that the build-up of fattywa;( cnlqbw (xql8)f qhj97 i- tissue on the wall of an artery decreased the radius by 10%. By how much would the pressure provided by the he q7w-w;ifb c 8axl)ljhq(n( 9qart have to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of water. Tube A ha81 nx0c20v,yqli w8qedwz7qrw4 9qcqs twice the diameter of tube B. If wate8 x8q zwylqqr 1 009e4qi7wdw, cnqvc2r rises 24 cm in tube A, how high will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will w*u5(bs zx)i gcater rise in a capillary tube of diameters *gc ib(5xzu) 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capil*r:pfk ,xnwu9* f ni/zlary tube with a diapn nfrwzix9 k:,u*/* fmeter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and thbxbbuo3- *d6,d* ki ame 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 some soap. What happens to the heig k3m ud,aod*xb*bb6i -ht of the liquid column in the tube?

  Consider a rectangular frame 7,u5,yuvjzrqst rk,d r3g a84of length 0.120 m and width 0.600 m with a soap film formed within its confined areayu5jg rst43qzd kr,a u,7r8v ,. If the surface tension of soapy water is 0.0260 N/m, how much force does the soap film exert on the 0.600 m side?

  An adjustable rectanxado;;s28 tlyjw w9m)gular frame has length 12 cm and width 5 cm, and is built in such a way th8m;)sa; 2t w9y ojwldxat 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 adjustable long side so that the frame is 12 cm square?