The three common phasef::q qpr,1.s0w w jfxus of matter are

  Density is

  Substance A has a density ofj0myv-tcp5xj*w 3 / sl $3.0 \; g/cm^{3}$ 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 qiy8z.u, dvgszij*9. a unit of pressure?

  Consider three drinkinglz6aqg)* k3 rf kecgo-i:2qw:igi6 1h glasses. 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 z:1alqhei oqk2i3r6gg :-gf)* c 6wki 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 outside a tire called n3i*r)-iv abe7 i z8kx4aii)u?

  When atmospheric pressure chaz/j l(,uqj*v qnges, what happens to the absolute pressure at the bottomljz , q(jq/u*v of a pool?

  You are originally 1.0 m beneathb 3hc2uf*jq ia p/u6mp*zqw-k/ n)2ie the surface of a pool. If you dive to 2.0 m beneath the surface, what happens to the absolute pressure on yofc- q ippu3 /qaj2h2bknu i6 )wm*e/*zu?

State Pascal's principjkt: m4/s z.1ckf ag6lle.

State Archimedes' principle.0 k)i:lth57vgs+ j ;e 6uqcjnt

  $50 \; cm^{3}$ 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 happes2w;g u.c/ z3+avi xbkns to the bv;b usx2gka.icz 3w/+ uoyant force on it?

  Salt water has greater densityp8 tvre ew. v*kp+ez4. than fresh water. A boat floats in both fresh water and in salt water. Where is the buoyant force greater orp8v.etp 4e*zv e.k+w n the boat?

  Salt water is more dense than fr lb9*vtq ;kbe(esh water. A ship floats in both fresh water and salt water. Compared to the fresh water, the volume of water displaced in the salt watb*(evq;tkl 9 ber is

  A steel ball sinks in w1.ny r ve:z /c)ahcgv;ater but floats in a pool of mercury. Where is the buoyant .1n rcv vea/g:cyhz;) force on the ball greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg zf4w0e(n5 wlv piece of lead. Which has the greater buoyant foz 0e(4wnvfw5lrce on it?

  A piece of iron rests on top of a piece of wood floatie5 qtzoziqqxwye 3x 1a4c9dh90o *)*nng in a bathtub. If the iron is removed from e0 e1ca*3zyo9 5 4qqxnqthw oiz*9)xd the wood, what happens to the water level in the tub?

  A piece of wood is floating in a bathtub. A second piece oesm )lidm5 (qv/8pg81vo e9 vhf wood sits on top of the1vom8 m5e8lge vs/iqv)h9(p d 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 level in the tub?

  Water flows through a pipe. The diameter of the pipe at point B is larger,h c5dh6 h+s 9q2ab,krb)glfm than at point A. Where is the speesmq 5k6h,) 2g b+hd la,9bfhcrd of the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe widens tuec16 shsez39m d ir;3o twice its original radius, what is the flow speed in the c s1 ih3e6d;e z9srmu3wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narrows to hnfyd: f5z3ydr et7k3yg aphb9s f*6*2y8vtd4alf its original radius, what is the flow speed in the narrower section:fp tykbd523 yth e*fyd3 f vs7*g6y894azndr?

State Bernoulli's prin lh:x2su,j*buw, lc +sciple.

  Which one of the following is associated with the /t p4(s lxd/qjlaw of conservation of energy in fluid(/tsxdp4j/q ls?

  As the speed of a moving fluid increases, the pressure in the fbeb4ym5 f3oi5zen).rf (+l p kluid

  Water flows through a pipe. The diameter of the pipe0xn85 za4 n :nq0l*i hv0mvwcw at point B is larger than at point A. Where is the water pressure grelv ic05awzn x*0m:h408nn vqwatest?

  When you blow some air above a paper strip, the paper rises.;l (n 3jxh+ny*rtw fa. This is because

  A sky diver falls through the air at terminal velocity. The force,;4cj*dcstz hq a.*z s of air resistanc 4z. dqac hcs,t*j*z;se on him is

  Two Styrofoam balls, o+i0,g qftqpz:17qi dpf radii R and 2R, are released simultaneously from a tall tower. Which will reach the ground firqi+gtd:qp 01pqz,f7ist?

  When a small spherical rock of radius rybzc8nz. 0*mf w,*-tokjqh)j falls through water, it experiences a dr*.y8fj 0)hwo jtkc*m qn z,-zbag 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 f i;rl4(hm:8blvihdf( luid through a narrow pipe? That is, if you made a 10% change in each of the quantities below, which(ib 8fll(:dmhr;h iv4 would cause the greatest change in the flow rate?

  Two horizontal pipes are the same length, but pipe B has twice the diametyd3wov 1 )bw1mer of pipe1 1w mwy)ov3db 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 pipepn 2w2bn*a9mu B is twice as long as pipe A. Water undergoes viscous flow in both pipes, subject to the same ppw2* u2n mbn9aressure 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. This "greasy" taste seems to bu(9yk,4qv kcsrsoa;3 e associated w c,ksy9 kau so4;3vr(qith oil spreading out all 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 d is placed in water, the water rises to a height h. I+u e8c 2;doz,e:xcjjn f the diameter were half as great, hoeuc x2oz :+,jc ;nedj8w high would the water rise?

  Certain insects, such as the water bug, ar4i )x nnb5pju-e 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 bug A, in all)nx-uip5 4j nb 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 l1 . /;c gvaonj+5my6 yvc4hxcqightweight that they can run on top of water withoug ; 6yyo5c41 v+cnaqj chv/m.xt 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 dimensions 2.00 cm x 3.00 cm 95msfoe t *+xuo/jj 5 vs-xs5zx 4.00 cm has a mass of 30.0 g. What isejt5-+ s9vu jssx*m 5o x5foz/ its density?

  A liquid has a specific gravity of 0.6 r7r:xpud4dh 5zmz)k /ayko,357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm. What is t8ed//i)a, uet3g4 utbp1y xohhe maximum pressure it e4u iy)ad8 ,gtx/te3h/p1buo can exert on a horizontal surface?

  A person weighing 900 N u ph5s k1j93wi xcb(*8e dtwz:is standing on snowshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (abago3u- 82k(mmi nxc2ssolute) must a submarine withstand at a depth of 120.0 m in thmkiu(c 3s8-o gm 2nax2e ocean?

  A circular window of 30 cm diameter in a szg2wo,grt ; 1cubmarine can withstand a maximum forcer12 tg;wo,zcg of $5.20 \times 10^{5} \; N$. 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 pressufpto 5vea9hdwsl/ /jv 4a/2o5re is 300 kPa?

  What is the gauge pressure at a location 15.0 mlzs22 n +ezm) m(h7eat below the surface of sea? (The density of seawater netz mh)7+(aesl2m2z is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a locat x7exp vl.7e+qj2-cpbion 15.0 m below the surface of sea? (Th +7eljb-ppc. xe q7vx2e density of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small p03 ecsx b1g:bfiston of a hydraulic machine. The small piston fcb:g3b1 exs0has 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 shd f, xdcgk+bj5w 5i/6x 4ker5g;zi0dmall piston has a radius of 5.0 cm and the large pisbg6h iik 5cekd5g 45 xjrx+d/ 0wzf;d,ton 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 piston?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter hydraul9cgzb-mc*ktjwr- ;k + ic piston. What force nee mjk c*-9bgwrc+t;-zkds to be applied to a 5.0 cm diameter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter of 8.0 cm, and its large pig( bq .tg*+c lnvt98pb+* /n3se.dw sjt.z zxwston has a diameter of 40 cm. The lz+nvwq(l**wt /x3d8pnsg .bj z..t e b+cs gt9ift 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 ij ;rei 1d6lr9xs the buoyant force of the w ej6xdi9rl1r;ater?

  An object has a volume o ,- s7aq vlw7mri.ptg)6j g1khf $4.0 \; m^{3}$ 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 w(16ctl an fa v-45s;n9rhv,fn h-tph chile submerged in water. What is the tension in the string? (The specific gravity thth n5-;nac 1nr6 vc9favhsl (-p4,fof iron is 7.86.)

  If the density of gold :lgx, fdjc+1.tx x.cf,/ p eusis $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarine (density = eqq/ocy;x5lw1t 9: k e$7.8 \times 10^3 \; kg/m^{3}$) 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 w+gcsqn2u 9nx 1mu jfq2l*0(djhen it is immersed in water. j ld+nxg0m*fn2 jcq12s(u9qu What is the specific gravity of the object?

  A container of water is placed on a scale, and the scale reads 120 g. Now a 20-g4g rr.j ho(z7ta99rrl piece of copper (specific gt7ror. ( 9ajzr rlh4g9ravity = 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 densit) n)+xl2o+ 8r vphrmc hu)xt*ty 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 v2kqw 8xmih):u3-.6he0 : t lxv;nctoq st)wv cm and diameter 2.0 cm will just barely float in water. What is itsiwqx :l m)vse c.twv3 -)k 8n;o hvt:tqx206hu mass?

  A rectangular box of negligible mass meassf vbg-kz0krqx g8bd 1794zt;ures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kibbzz 0xk 9q;dgg r4vk7t81-sflograms 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 d(je /7jfhu3r half its volume beneath the surface of the water. The weight of the displaced water is 2000 N. Whatj u d7jh/fr(e3 is the weight of the object?

  A solid object floats in water with three-fourths of itsqg*(6c8btgp f6f j*fa volume beneath the surface. Wha( qj*fa8bp 6f6t cg*gft is the object's density?

  A 200-N object floats with three-fourths of its v0 u(ep 7.,beszdr: 1kq+zfflvolume beneath the surface of the water. What is the buoyant force on v +f,ued. s1(0qbp:k lzf7ezr the object?

  A polar bear of mass 2fp86 b sttfh:g*)qi8 gic,fe200 kg stands on an ice floe 100 cm thick. What is the minibs8te)q82i,h:*gpcfi ft 6 f gmum area of the 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 78xswyfu j 6huy8yaif4 3ur7f1j p-:63poiska pipe of diameter 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4gt 9tbzmxl3f,q7; lnd2 jfm 51.0 cm diameter pipe at 1.0 m/s. There is a 2.0 cm diameterf;5fm2dnzq17 t 3 mg xtlj9l,b restriction in the line. What is the velocity in this restriction?

  Water flows at 12 m/s in a hod+ xxu2vae r/m/m*yyb:u *;f frizontal 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 im2t+bqz2 li2 bt take for a pump to supply a drinking fountain with 300 kPa, if +q2it bl2 bmz2the fountain is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in th pyvmthjo 797py8sz 8h+s ,t6qe bottom of a water storage tank that holds water at a depth of 15 m. At what rate will water flow ouv 6hz t7t p+qm8yyj8oh 7p9ss,t of the hole?

  Water flows through a horizontal pipe of cross-sectdfkl(81em,gnloi .o pq n d+3,ional 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 0.2wf:j+ty*yc7:,mvizg yrid9 7) u+ta b 0 Pa-s. How long would it take to pour 4.0+)7bi*tyj:i+:v9,f t7wuzcyyrg amd 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 neglect any drag effects due to the upper part of the funnel.

  Suppose that the build-up of fatty tissue on the wall of an artery ) jvr8uf r -q(3w2mxhkdecreased the radius by 10%. By how much would the pressure provided by the heart have to be mk-(h xurqfrj38v)2 wincreased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of water. Tube ; xac7s zct8h9A has twice the diameter of tube B. If watezh;9ac87c t xsr 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 water rise i8bc pl8:tf 4smn a capillfsp :t4 m8blc8ary tube of diameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capillarqhxlsdmby*7iy 306sd c4n(2gy tube with a d 3dsyhy 0nlbc7xd4*2 sqg(i6miameter of
0.50 mm?

  A narrow tube is placed vertically in a pan o+biruas : f.e2qqj mt3q+c:)cf 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 lowere+.qqj3r:ba)t2s m ccu f+ :eiqd 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 0.6q5q v zg+c*d6ydb/n2v c x(/nm00 m with a soap film formed within its confined area. If the surface tension of soapy water is 0.0260 N/m, how cv+ / d6q(/gn2ydbmxc q nvz5*much force does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame hacekx 4d 4jybmz2k- 00vu3hr hjx79x/j s length 12 cm and 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 is required to move the adjustable long side so that the frh4ecj0dxbr k7x k/ jv-zx 93m42yju0hame is 12 cm square?