The three common phases ozn ,gx dd4zkdy*v;u ;l)nx1k5 f matter are

  Density is

  Substance A has a density of *9-9f q b4 b8xdvao5ahy dw5z-ro t2tq$3.0 \; g/cm^{3}$ 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 pressu1yx:c2,j c( fpfo2u bztrv++n re?

  Consider three drinking g/jm6dgrdl;d1i dj c+tb-d :z( g8ot2 xlasses. 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 liqui6t2d;/+j m(trobc :dlx jggzd dd81 -id pressure at the bottom?

  What is the difference between the pressureura7(atv (cx: s inside and outside a tire called?

  When atmospheric pressure changes, what happegweyqq8xe5/,kvrhe x+5jy 8d0z ,/cv azml(:ns to the absolute pressure at the bottom of a +xze vyzd:/hwx805 q/8vqey ,r ej, lcag(k5mpool?

  You are originally 1.0 m beniio9*ct 3 .knveath the surface of a pool. If you dive to 2.0 m beneath the surface, what hok* 3in.9ictvappens to the absolute pressure on you?

State Pascal's princip sg32us64 usdn76cylb7x6zu,ijs h:d le.

State Archimedes' principle.zqnsdb.p h 225 i;/ kp6k2wpsy

  $50 \; cm^{3}$ 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 densituk,-c. 9,n 9ctg8y/b xujnim/wz hv+ty, what happens to the buoyant force on h/c.8 n,bwgc,m-/+ v9 txn9ukyujtz iit?

  Salt water has great9()d 0.bi/sv jhwchxb1b4yb t er density than fresh water. A boat floats in both fresh water and in salt water. Where is the buoyant force greater on the boat?b)hch0dbbwj.ytivs94 1bx/ (

  Salt water is more dense than fresh water. n jdu-yx/*a/wm.ua/ iA ship floats in both fresh water and salt water. Compared to the fresh water, the volume of water diu- uajwnyd//a/x.m i* splaced in the salt water is

  A steel ball sinks in water but floats in a pool of mercury. Where is the ba,bh g1h l;5y,gfh(v auoyal, hfba5h, y1;gvah(gnt force on the ball greater?

  A 10-kg piece of alum;zscg.b ne47minum sits at the bottom of a lake, right next to a 10-kg piece of 7ezcn.m;4s bg lead. Which has the greater buoyant force on it?

  A piece of iron rests on top of a piece of wood floating in a bayp apnb- 6 :vpj+a5)xuz+mt0hthtub. If the iron is removed from the tap:h +p -)axn0+buzp 5yvm6j wood, what happens to the water level in the tub?

  A piece of wood is floating in a bathtub. A second piece of (ic jg(dy.9 wkwood sits on top of the first piece, and does not 9(wcjd i.k(g ytouch 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 u,2mkhcd*b7lzd7 q7 nis larger than at point A.bu7 *n 7l ,c7mzqdhk2d Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe widens to tw psy -o,/ g.hfu,(ofpkice its original radius, what-p. uf/o,,( y opfhkgs is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe nap3 k9ae oh + jkgvl407m.6dqefrrows to half its original radius, what is the flq j hd m9aekf+p7g34l 6evok.0ow speed in the narrower section?

State Bernoulli's principf b3 pisvw)df*y3 ;/cule.

  Which one of the following is associated with the law of conservation of energy zec 4,6 (dnwfvin fluidd6,wf cvz4 e(ns?

  As the speed of a moving fluid increases, the pc z2jl, vo.i5zressure in the fluid

  Water flows through a pipec ys62jnye4 9t. The diameter of the pipe at point B is larger than at point A. Wher69 4jc sty2neye is the water pressure greatest?

  When you blow some air above a paper strip, the paper rises. This iyxa/ -uoa /cj0s because

  A sky diver falls through the air at terminal velocity. 44be-ab 8dk6m onw.mw1inr: yThe force of air resistance on him -yk8 a4ion:wb1m4d.m6 enrbwis

  Two Styrofoam balls, of radii R and 2R, are released simultaneously froy/f3fg6o4a 5xyev y;wm a tall tower. Which will reach the grouneyfyya3 wxo5;6 v4g/fd first?

  When a small spherical rock of radius r falls through water, it experiences egho pb/o w+2u2141my dye, cwa drag hweoeogw1y/ +41ymcbp2 u2,d 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 tg8ot9:m a 1msfhrough a narrow pipe? That is, if you made a 10% change in each of the quantities below, which would cause the greatest chatas: 891mfomgnge in the flow rate?

  Two horizontal pipes are the same length, but pipe B has twic8d( 3hab8b qktm.f.i 9v.w+qonb3 vuve the diameter of pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the lengths of the pipes. If the flo.ha8dkvo v+3btbwn(8 u . 9ifmvqbq3. w 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 twicx(:-mqwy;hul3 cmg b n-;e8 /o .jaqdge as long as pipe A. Water undergoes viscous flowwn;/c.guyjlo 8mm(d- eq:-b 3;xah gq in both pipes, subject to the 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 often tastes greasy. T7l1;qj x8 ahmg 5v;2*1 ugteqt*eesqvhis "greasy" taste seems to be associated with oil spreading out all over the surface of the soup, instead of stayingh ve8t t;jle12s1*7g5*q vg;xuam eqq in little globules. To us "physikers", this is readily explained in terms of

  When a tube of diameter d+f*f7 qm*nea (9ym uu9sr1g bw is placed in water, the water rises to a height h. If the diameter were half as great, how high would the water 9 gm* equf1 9rsu7mw*(fyb+ anrise?

  Certain insects, such as the water bug, are vgaf; 0xnc3:a6wy yo4sufficiently 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 as long, twice as wide, etc. What is the weigh :;wcx6 o0gy3 4ayvfant of bug B?

  Certain insects, such as 1iijip *o/frtyc;:/. 6pyl hythe water bug, 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 everypi: tfl ;oc*p y/ iyy/.ri6h1j 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 iv34y0ju 3+crw ay6 pza65re g4.00 cm has a mass of 30.0 g. Wha4ew+p3cz ya6gyav35 jiu r6r0t is its density?

  A liquid has a specific gravity of 0.357. W*x/ote a ex6:vhat is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm xd ;aeeh6ym/ q5k7d 5m2.g z7j hyiame6 4.00 cm. What is the maximum pressure it can exert on a horizontqm d 7ymjh ime5egh2 ak5z. dy7a/6;e6al surface?

  A person weighing 900 N is standing on snowsh +jl3b.s;vtx toes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolut1aoz3r2m: 8 cv0rzg gke) must a submarine withstand at a depth of 120.0 m in the oceg 1v8g omr:czkr03a2zan?

  A circular window of 30 cm diameter in a submarine can withstand a maxky:l8sapq1z: d6 w0s2ahtdsxa t.w8 9 imum force s6tw881 p.l0:thy : 2zw qxsadaa9 dskof $5.20 \times 10^{5} \; N$. 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 cv xq:-k/z+ 0a-r zlc*:tqlhi 9nc* sg swv4l/pressure is 300 kPa?

  What is the gauge presse 8dpw;mf96vc ure at a location 15.0 m below the surface of sea? (The density of seawatewfdv;c8 p 9m6er is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a locati (72/9o1gdzfrdfq+dh573 ld jwmp6qmb b*frfon 15.0 m below the surface of sea? (The density of seawaqdg31l +bff9qdr5 f (2jo6 z7hrddpmw7/f* mbter is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machi/zgb wsh3xb33 ne. The small piston has arexzg hswb33b/3a $2.0 \; cm^{2}$. If the large piston has area $40 \; cm^{2}$, how much weight can the large piston support?

  In a hydraulic garage lift, the small ib- *:sb n1-,j/xgtafyfl-n dpiston 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 tonb 1dt aj* -g,ynfi--xs/blf: lift a car weighing 20,000 N on the large piston?

  A 13,000 N vehicle is to be liftq (2c ms tseufs4a*qji4 (nc-rpf 834yed by a 25 cm diameter hydraulic piston. What force ne s(arup scf8*4n44 yq s(ej 3i-c2fqmteds to be applied to a 5.0 cm diameter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter ox2 tqw qsl , 0b;g)emv27bde8wf 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a load of 15,000q bbd 0twm;)ge7 2x8 eqwls2v, 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 weighn6+oga+ 3b lw56umuwjs 40 N in air and 30 N in water. What is the buoyant force of the wanl6+mgu3ujw6w5 b o+ ater?

  An object has a voluzq p7 xo8(d0 cy2xdj5xme 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 striqez(fosi 2i :+ng while submerged in water. Wz+qs(efo2 i: ihat is the tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gold i4q7ycqbx: nsn)3; fvwpzy2 ,ms $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarine ( 2-i:xdnt97flpi(t+cli3a4eb )uodpc i th +)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 7.8 7zh*x.i+ .oarrdu2f ,t( i1bqgo zmy/4 N when it is in air and 6.86 N when it is immersed in water. What is the speci at/igzo . hxqi+zdr u.(bo*,f2r1ym7 fic gravity of the object?

  A container of water is placed on a scale, and the scale reads 120 g. Now a1.j911 3)canw n uz+kfwunzpg 20-g piece of copper (sp1fg9zj. kuu1) 31nzwpwa+ nncecific 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 2 z21n b qosoy2)o)fx+oecbm 9kg 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 dire1z4754gz k;ig4q dhh y 2 ufjqqi(y-ameter 2.0 cm will just barely float in water. Wqe;5 1q4 j(ikg2gyui4yrzd-zq f 74hhhat is its mass?

  A rectangular box of negligible mass measures 5.0 hv ou3 ivlt(w n8zcnj; v1a5s580e3dzm long, 1.0 m wide, and 0.50 m high. How many kilzdvo1ha8vn5 8 ju(z;s3i0evnc 3 lw5t ograms 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 surface of the water. Tid mi8csi ;vq6u7m(n24i4y svhe weight of the displaced water is 2000 N. What q;yd iv m(ns687siv icum2i44is the weight of the object?

  A solid object floats in water with three-ujn e .aj zb-86rfmj p*n17kp-fourths of its volume beneath the surface. What is the object's da *8pbjupn17kfjmj rn-.-6ezensity?

  A 200-N object floats with thru7 7zzzdl8lt29*x myeee-fourths of its volume beneath the surface of the water. What is thezt l8zu27 dl9xymze*7 buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 c qujx1*rb9p/tsfr 13 pm thick. What is the minimum area of the floe that will just support the bear in saltwater of specific gravity 1.0xrtqr 1b s 1upf9*j/p33? The specific gravity of ice is 0.98.

  Liquid flows through a pipe of diameter 3.0 cm at 2.0 b tl,jiv, 9m5um/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe l lzm 9 zsmq972alau,ja;/u-pat 1.0 m/s. There is a 2.0 cm diameter restriction in the line. What is the velocity in thisza9ll29s-jl aamuqm/; p 7z,u restriction?

  Water flows at 12 m/s in a horizumkmt+rv: 2766on npt ontal 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 di)//r yprl v3arinking fountain with 300 kPa, if the fountain is 30.0 m above the pump/ra/vy3lrp) i?

  A hole of radius 1.0 mm occurs in the bottom of a water storag ,:va; + eh7ypknzsf): -tvcz31aritc e tank that holds wate+ k: e7tf,s1;-nv:zavrtc 3hc)ya zpir at a depth of 15 m. At what rate will water flow out of the hole?

  Water flows through a horizontal pipe of cross7ilz+ q7zb+8 sjcd2t8rq/ bxu-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 0.20 Pa-s. How long wouq)gwskv* jw658fhl f0 ld it take to pour 4.0 L of 0ff5 8 kwv6gwljhq)s *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 tbon p9s4y*7 yrp4pqp ;he wall of an artery decreased the radius by 10%. By how mu op spp7qp4y by;n4*9rch would the pressure provided by the heart have to be increased to maintain a constant blood flow?

  Two narrow tubes are placn*pgl .vpub:n;o1f 4wed in a pan of water. Tube A has twice the diameter of tube B. If water rises 24 cm in tube A, how hiuno pg41bwvl.n * f;p:gh will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will water rise in a cap,w1s .h+0sw4m fb7-g6llu uvhn dk, udillgm.h+ fn47d10s6,udu,s ul klb -ww hvary tube of diameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capillary tubqw9cdt y)u8o02j8ioi e with a diam2wqi8t ) yioco ju90d8eter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and the water riseu1 p1zsy2 qzaouz1*,zkl(ri0s in the tube to 4.0 cm above the level of the pan. The surface tension inr za*zzy s11 zuo0 lpq2,iu1(k 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 0.6009v 54rv)q qm)ll oapw; m with a soap film formed within its confined area. If the surface tension of soapy water is 0.0260lq9q);v)ovw rml4p 5a N/m, how much force does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm i as+0 z h;llap/qc/*xj q:5gqtv n7b.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 qbhpqglxn .l 5 sj/t+; 7zqa:i0ac*v/that the frame is 12 cm square?