The three common phases ofzv1 h; h a4rw:/dd0xqf matter are

  Density is

  Substance A has a densitjif c*(j.nrnugou dm)nm 0460 wb lv+/y 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 4c1cpvc 6 j ggemt/t34zsu*r9 a unit of pressure?

  Consider three drinking glasses.gj589xfi /q zbr,e4t +kw, dbz All three have the same area base, and all three are filled to the same depth with water. Glass A is cylindrical. Glass B ibz5r 9 d4zf/xtiq+b8 e,,g kwjs 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 aq) vnn 8ew5/j/on8ugoutside a tire called?

  When atmospheric pressure changes, what happens to the absolute presshz zi wm*biz qvpy-1+287;h nhjv (o+pure at the bottom of a pool?iz *p hh2zo8v mwp-vbij7q(1yz nh;++

  You are originally 1.0 m beneath the surface of a pool. If yo,gufjq ejn dba.pn,7)6)vv0xu dive to 2.0 m beneath the surface, what happens to the absolute pre6n nu0e7, fq.)gdjab),vv jxp ssure on you?

State Pascal's principl u p 9,;eql:,l.y1 (ixbhfrcike.

State Archimedes' principl ;/ppass *kxeubeo3 .o (9-dd +3flduie.

  $50 \; cm^{3}$ 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 happa.b0 d749uz:l5 aqrirptdq ly64u(sx ens to thlp 60t(q.u7di5rz4 l:axrbqu4a 9dsye buoyant force on it?

  Salt water has greater density than fresh water. Adk.2dtn 7z rd1 boat floats in both fresh water and in salt water. Where is the buoyant force greater on the boat1z. nd d7d2krt?

  Salt water is more dense than fresh water. e - ih :inn(cwfmn te/6/:j,dtA ship floats in both fresh water and salt water. Compared to the fresh w(d n ifth :in,jent:m/w/c-e6ater, the volume of water displaced in the salt water is

  A steel ball sinks in water but floats in a pool oxc2;l*m/xa3e fj ) vjxf mercury. Where is the buoyant force on the bx;v*jm3clx)a fe j x2/all greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kkfz6u(mfoz 4)g piece of lead. Which has the greater buo 4k (fm6)zzofuyant force on it?

  A piece of iron rests on top of a piece of wood floating in a bre(de6vurg1 (f)e l,pathtub. If the iron is removed from the wood, what happeu(e1()deg v6 fpr,r elns to the water level in the tub?

  A piece of wood is floating in a bak,7 p97.iforaqm (qdj thtub. A second piece of wood sits on top of the first piece, and does not touch the water. If the top piece is taken off and placejioqrpq(9k,f a.m d 77d 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 jpfn z 4i+fylrscfvw:(1 0.qf (/xsz7larger than at point A. Where is the speed of the water greater?/ .7y s qffiz4xlnw +vfrsfpc(0:1zj(

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe widens tcv1g1n ehc:+cq y h643lgkgs :o twice its original radius, what is the flow speedy6+lgg h1c:3 : g4c1qkne schv in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narrows to hq/ ( 9m7h;3vqowhal bkalf its original radius, what is the flow speed in the narrowem93hqokwb (q v; 7h/alr section?

State Bernoulli's princivby3d r4h-x9;crn- giae .q b)ple.

  Which one of the following is associated with the law of conservation of enerjzzwu0vfli )t4 )(g3pgy in fluip0())jwg4ftivuz z3l ds?

  As the speed of a moving fluid inc.hle4 rss,56zwib vk) reases, the pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at point B is lar49ioe6k;afa-szt;k kger than at point A. Where is the wao t-4akfaez6ki;9sk ; ter pressure greatest?

  When you blow some air above a pap2pdc4p. a 3w-uqrdh/ ser strip, the paper rises. This is because

  A sky diver falls through the air at terminal velocity. The 1*8 o dok9 ra3hat 2 1;ko4wkja0yzdqflzi3 d5force of air resistance on himhqto4zyr;loo1a9fi53a2d0j8 k*kdw d a3z1k is

  Two Styrofoam balls, of radii R and 2R, are released pcu a n ayfpc-1,o of+7l,;rxr/zr/e0 simultaneously from a tall tower. Which wil,l/+f zo1cuoa7xpr ; pa-f yr0c /n,erl reach the ground first?

  When a small spherical rock e0;v (q atwtuajs* z)az/0:l bof radius r falls through water, it experiences a drag forj a v0e/t:a )*tb( zwzuaqls;0ce $F=arv$, 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 throug5 kw qs8di z88xvpxd7(h a narrow pipe? That is, if you made a 10% change in each of the quantities below, which would cause the gripx kxd(5z8 78dv 8sqweatest change in the flow rate?

  Two horizontal pipes are the same9;r j;ll hr/ivxu4b1c length, but pipe B has twice the diameter of pipe A. Water undergoes viscous flow in both pipes, subject to the same pirjr;vb4 h1c9lu;lx/ ressure 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 pipe B ixjrj9i y w9rodr813d/s twice as long as pipe A. Water undergoes viscous flow in both pipes, subject to the 9/wjxr rrjo 13d98yid same pressure 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 oft o7p1:u1; y3qui xrcvpen tastes greasy. This "greasy" taste seems to be associated with oil spreading out all over the surface of the soup, inup11 y r:xpcoi3v;q7 ustead of staying in little globules. To us "physikers", this is readily explained in terms of

  When a tube of diameter d is pla66ca4 ru ivvo3zeq. 3sced in water, the water rises to a height h. If t3s6vr3uc. q6evoi4z ahe diameter were half as great, how high would the water rise?

  Certain insects, such as the water bug, are sufficiently lightweight that til7icud :6x; pbz1kj ;hey can run on top of water without breaking the surface tension. Water bug A has weight W. Waci;1x7lp; :izd k 6bujter bug B is twice as big 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 sufficiently ligh+6dqw/c. dd)d li6 nn dx3-mpqtweight 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 upwa )dmcd3 qixnn qw-+l.dpd66d /rd 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 dimensions 2.00 cm x 3.00 cm x 4.00 cml-2qm aqz u36a has a mass of 30.0 g. What is its dqu 62 mla3zq-aensity?

  A liquid has a specific gravity odsgs:rsyuh9 3e-3h ; nf 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.69+3nu gbwg*idl,vaw 00 cm. What is the maximum pressure it can exert on 36+bg*nw9,viwa g lud a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each snowu+f 0zeqd29dk5q+ar91wvzy ee.i2fashoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withspqk8;soe 9- ,-mkqxrwtand at a depth of 120.0 m in w;pm,r sk9qq -k-eox8the ocean?

  A circular window of 30 cm diameter in a submarif:jm 7rd 8,vzdvg/-gntn 2sn) ne can withstand a maximum force onfz, - dt jr7vs8dv2:m /gnn)gf $5.20 \times 10^{5} \; N$. What is the maximum depth in a lake to which the submarine can go without damaging the window?

  What is the gauge pressure if /xr++ gi8rhzk3oob:4mqv e:x mj28v 1ux;cjk the absolute pressure is 300 kPa?

  What is the gauge presdvjg9d- m/ xmz4t0qwvd,7)bp sure at a location 15.0 m below the surface of sea? (The )b,dvgx q9 tz/m -4d vjd7m0wpdensity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 1nf 1.fxlqu x0v+lm7t1 5.0 m below the surface of sea? (The density of seawatf 1+ 1ll.t0n7fxumqxv er is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machg +yj m5 x:d(0fdl vb4mig9b;hine. The small pistonx5g ;4jyf9ld: bh(b imgmd+v0 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 of 5.0 cm 6;*s j r os1,qkb uot0t)ub3yvand 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 t3ot;qjsb1su , r6o) yvk0u*blarge piston?

  A 13,000 N vehicle is to be lifted by a 25 cm diamete /ze : c1h8yhss4qv 5xqaf8su8r hydraulic piston. What force needs to be applied to a 5.0 cm d4v:8ey / sa8qsqhu8x sh5fzc1 iameter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter of 8.0 cm, and rc-bd aekfx: 9c3g*c,pi 8ee,its large piston has a diameter of 40 cm. The lift raisesre :p89ie b ,ac cd3x,*fgc-ke 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 3 ;6gve s rlbn193lhuuwater. What is the buoyant force ofu9l 1 vn g3;lu6e3sbhr the water?

  An object has a volume of 8 +a:ovvc.vg ea cibe16xn 94v-c6siu$4.0 \; m^{3}$ 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 whil17mzdae: zhoi3h g74k ,*t ucye submerged in water. What is 4ud1m,7ga3 o yz h7*cze htk:ithe tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gold i elux4 +lzd--lfa3/ j3 4bmjyhs $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel subm *7hc+hr lsaf*arine (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 imme:g-d ycloeez;vap0e+n1; b4 rrsed in water. What is the specific b r +-e;:0pe;g1de4 vzlyoncagravity of the object?

  A container of water is placed xi0zgbb zsv q/,7o6m:on a scale, and the scale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended f x zzb/60qv mb:,g7siorom a thread and lowered into the water, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum wit*uru e yd7d(8vh a mass 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 length 12 cm and diameter 2.0 cm will ju/gj0v/tc.dhq zfm hvjba 8.du* /o36nst barely float in water. What is its ma8d6d 0m azh/ uv*jh.bf/t. cnv jg3/oqss?

  A rectangular box of negligible mass measuresh0t.j cia*;k ywk0 wfx)o)yv2hxf8 9m 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 sinks in a lakefcwkywojh)mxvft xyk)28 0; 09 a*hi.?

  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 itwy62r/exbjo,et (c+l s volume beneath the surface of the water. The weight of the displaced water is 2000t,2b 6e+wcyox/lje r( N. What is the weight of the object?

  A solid object floats in water with three-fourths of its volume be (xhr lc-rhwb tu)lk g(, 6bq (fy;lo6f(a,,puneath the surface. What is the object's del,ltouxh6 y wfq ar(u(-h(krb,p;)bf6g ,( clnsity?

  A 200-N object floats with three-rl w(g(p0i3r xfourths of its volume beneath the surface of the wa wprlr3xi0(g (ter. What is the buoyant force on the object?

  A polar bear of mass 200 kg stan ;tewvit+u-adih7 2l. ds on an ice floe 100 cm thick. What is the minimum area of the floe that will just support the bear in saltwater of specific gravity 1.03? The specific gravity of t t-2vdi. hieu+a;l7wice is 0.98.

  Liquid flows through a pipe of diam/db 24gsy0ns peter 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. wvh4r h , th3mzf;57xqfn:o 5p There is a 2.0 cm diameter restriction in the line. What is the veloch;pm34fo htnxv :,whz5r q75fity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with;, fhg gt k1ky3x(vrti(*y,q6a3dolp( o4fy h 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 suppl8 .33r4bpph( qkxlzmv y a drinking fountain with 300( 38qklh4xm vprp. z3b kPa, if the fountain is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of alvd;b 75.kk ve water storage tank that holds water at a depth of 15 m. At what rat;7vv5b ek.k lde will water flow out of the hole?

  Water flows through a horizontal pipe of cross-s c8fbg8ug2b x0ve a-h9ectional 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 visco;iai4f+-y2tyk **,7qwjcbc ocf p)zxsity 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 k*xac7 fyc;cfo+)2 * ,bwz4ypit-ki qjept 6 cm above the top of the neck, and neglect any drag effects due to the upper part of the funnel.

  Suppose that the build-up of fatty tissue2nzmgj ,qc5s 6 on the wall of an artery decreased the radius by 10%. By how much zg,q c2 n65jsmwould the pressure provided by the heart have to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of water. Tube Ai ez )2gdyqa*nup1+vb4g1nv* has twice the diameter of tube B. If water rises 24 cm in tubep24z1v*gbiyv *nu egnq+d1a) A, how high will it rise in tube B?

  The surface tension of f 5m esbs6jw5 4p3ahp;water is 0.073 N/m. How high will water rise in a capillary tube of diameter 1. a36sbf;mpj e5ph54sw2 mm?

  232

  To what height would wam/dml ng42oz,a1m5c fter at 0 degree Celsius rise in a glass capillary tube with a d la5 1,mozfm 4md/gc2niameter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, p,mwjl qwj(f)f*k:a e)f0x5p 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 additjj)wpwp) fmfq :kef*x(l , a50ion of some soap. What happens to the height of the liquid column in the tube?

  Consider a rectangular frame of length 0.120 m a8 d*a)pe.mnu wnd width 0.600 m with a soap fil aw pu)*8.endmm 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 the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and width 5 5 m0zw)kq bw2kor6h *vcm, 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 is required to move the adjustable long side skw6omvr*wb2 q)khz 05 o that the frame is 12 cm square?