The three common phases of 28(7hpf/9 nkqj jceo rmatter are

  Density is

  Substance A has a density af8syby* w ;mvh rkyij , vcjj+1ya (1-;5xt;oof $3.0 \; g/cm^{3}$ 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 followin d 7zi*(1z6f n+rhv f lvdi7o;yws2v(ng is not a unit of pressure?

  Consider three drinking glasses. All three have the same area base, anc.ujm/e*och im 6nzmc:7 k,n+d 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 h*,jei zcu6mnc: k.7m ncm/+oh olds less water than A. Which glass has the greatest liquid pressure at the bottom?

  What is the difference between trf4r skp;s)ow)kz 8 t1he pressures inside and outside a tire called?

  When atmospheric pressure changes, what happens to the a 4dwd9dqm:f :sbsolute pressure at the bottom :w49df :dsqmdof a pool?

  You are originally 1.0 m beneath the surface of a pool. If you dive toadvvl. xhx:r,pupvrhj* +. 4*w2 he-a 2.0 m beneath the surface, what hap*-+rwv p .ujlv xedx42.hh:aap,* rhvpens to the absolute pressure on you?

State Pascal's princ.9 dp:fkn)v9qb ,migpiple.

State Archimedes' principijp75p(v )sr ple.

  $50 \; cm^{3}$ 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 waters)xqdh- 9a2.r peaczu9 ;o7z t of constant density, what happens to the buoyadq) eh2pc-z7a.xzoa9;t s9runt force on it?

  Salt water has greater density than fresh water. A boat floats in both 57iov9kmwf9 1ddn nj. fresh watomk.v15d njd9 7finw 9er and in salt water. Where is the buoyant force greater on the boat?

  Salt water is more dense than fresh watqg+e upv; eu0 3fj-x;wtw2gukh,-ki+ er. A ship floats in both fresh water and salt water. Compared to the fresh water, the volume of water displaced in t+ 2t w;,uje0fk-q 3;evgkhu-pgu xw +ihe salt water is

  A steel ball sinks in water but floats in a p 1d20. it0:( opbjecdlasli f 4luaa-1ool of mercury. Where is the buoyant force on th- (iai l4jo0luaf cda:te11. 0dbl 2spe ball greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, /(9q6xmpq: 2kfa px r n)v5ncmright next to a 10-kg piece of lead. Which has the greater b5: q a6p/ ) pq9xkvmrxc2nnm(fuoyant force on it?

  A piece of iron rests on top of a piece of wood floating in a bathtub. I7tlhjp39b6 zc7a e tfq6 /:ebnf the iron is removed from the wood, what happens to tba63jhqb /e7t: 67felz9 p tnche water level in the tub?

  A piece of wood is floatinut0x) 3fch 3aj, il7tulx,ko-g in a bathtub. A second piece of wood sits on top of the first pie3uxc,- jiltu,k70olxf )at h3ce, 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 diametex )qvg*am-* xa y9rhmv*t-b;hlyt3: kr of the pipe at point B is larger than at point A. Where is the speed of the water gr*: *av x-y;-9hmbtqlx 3vtrg myk*h)aeater?

  An ideal fluid flows ad;o(+ ik sha7xt 12 m/s in a horizontal pipe. If the pipe widens to twice its original radius, wha(aokd;i+xh7s t is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narrows + :kvob sr8eznc )lyh;;;ls +bto half its original radi+lb kv:c);ny 8se+r ;;sbzl ohus, what is the flow speed in the narrower section?

State Bernoulli's principl.5,neh vgg j7he.

  Which one of the following is associated with the law of conservation of enlq:ld m uuu i6d1,*ht,ergy in it 1q6um,ddhull *, u:fluids?

  As the speed of a moving fluid increases, the p0 i/gew)4 v91 h8ekwfxnf+ ef5:wdhij ressure in the fluid

  Water flows through a pipe. The diamete7bn/r r2 qvx9vr of the pipe at point B is larger than at point A. rbvn2 7/ x9rqvWhere is the water pressure greatest?

  When you blow some air above a paper strip, the paper rises. +++jrcwzaox ) This is because

  A sky diver falls through the air at terminal velocity. The force of air rem1yr*+5- 7iyxvee:h,vs fq cw sistance o75 v,q e+w-1*f y xshci:rymevn him is

  Two Styrofoam balls, of radii R and 2R, are released /7z/fhz5ydkmq )k;dt0oeo ;r simultaneously from a tall towere o7zfmrkyq 5/d;h/)0tdz o k;. Which will reach the ground first?

  When a small spherical rock of radius r falls through water,7j s95t)q2p ukhgoac u.7q ld; it experiences a drag force q2jud7au9lptc. kg q h5)7os;$F=arv$, 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 through a narrow pipe? Teyapg8b1- p+ mq4cr;c(pj-hq7y xts(hat is, if you made a pr emy( (y- 4c hxqbta ;cs+7q1gjp8p-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 diameter of -q- biudp-g2t pipe 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 t giqup2t --db-he flow rate in pipe B?

  Two horizontal pipes have the same diameter, but pipe B is tz2jfmyu/ k(zey23/ js wice as long as pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the lengths of the pim3f /kj/2 zys2 ujey(zpes. 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-;u3 au vo;hkqr,ium0 be associated with oil spreading out all over the surface of the soup, instead of staying ino;k,-vmqiu ua0;u3 h r little globules. To us "physikers", this is readily explained in terms of

  When a tube of diameter d is placed in water, the w0eq1.-1xqap 3:lt smgf zbmq.ater rises to a height h. If th1xqb .1-qef.lq0z : tmasmpg3e diameter were half as great, how high would the water rise?

  Certain insects, such as the water bug, are sufficiently lightweight that they cxi9/m8+ynqt +vd lm9: jo dwt-, yhho8an 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 +,/ no tyxyomd-9:htw8 9d+8qjvhimlwide, etc. What is the weight of bug B?

  Certain insects, such as the water bug, are sufk xscn1;vw wv03p)h .yficiently lightweight that they can run on top)3 pvy h. kn;cv01wsxw 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 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 2.00e9s 9eb0k8d ho(qr qvcm+d2 ;-rs exzj6q :ce: cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. What+rc(;ve 9xr: 6m0sqqjk8-ed cs 92 oeqb:ezhd is its density?

  A liquid has a specifir1ggu+ :th:l 9 jybx/mc gravity of 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm. What is the)c64 tdkhz j7m maximum pressure it can exert on a horizontalh6 t4zcjdm )7k surface?

  A person weighing 900 N is standing on snowshoes. Each snowsl;ck /0fmggoql; x bh ;8x:,kshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand at a depth of 12/*cyi/e)fd3 eca l2fs 0.0 m in *eyi)f3 a//d csfl2cethe ocean?

  A circular window of 30 cm diameter in a submarine ))j*v v l l0bzfgl r2 xoekk42+m;nxh6can withstand a maximum force o;6lrveoxf2k nz)l kbj2g m+vlx)40h *f $5.20 \times 10^{5} \; N$. What is the maximum depth in a lake to which the submarine can go without damaging the window?

  What is the gauge pressure if b4wdat: x1 s:nthe absolute pressure is 300 kPa?

  What is the gauge pressure at a location 15.0+ )h8nkmnb9im u*9gfo m below the surface of sea? (The densit+k)o g*h 9fmmin nu8b9y of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below the surfadez25 n.zbca*czn0 8mt,;mi tce of sea? (The densitct nez m08tz.n;5 a*bm2id zc,y of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small y ptmcd-z)j.2r/hej 3piston of a hydraulic machine. The small piston hamdr)ze . jyh3c-j t/p2s 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 and 6.bl1 9j.yqzf z4iiwl 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 piston? .zif 19qj4liwlzby6.

  A 13,000 N vehicle is to be lifted by a 25 cm diameter hydraulic piston. What 0tsrqn(rvgzz6pw51 + force needs to be applied to a 5.0 cm diameter piston to accom6(rgszrw pq0z 1v n5t+plish this?

  The small piston of a hydraulic lift has a diameter of 8.0 cm, 6fw2gp8us4lgd-pm bx b5.u2qz: h i2 hand its large piston has a diameter of 40 cm. The lift rai subplhqz w2gx:mid. gh8 2f4-p u625bses 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 tha(m :o ti(bdw1(avmt5 e buoyant force of dvab:(5tom1ta(mi ( w the water?

  An object has a volul1d1iu8 x h8e4e6brkfg2 g7rsme 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 while somw wsw) t4f6)k rt6hugf h2z,s9w;)vubmerged in water. What is the tension in the string? k uwh) h,r2v w6m ws69)tfzgo)f;wts 4(The specific gravity of iron is 7.86.)

  If the density of gold to0php.1h) j5ink 7 dyis $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submar,yut i5 7zmg:iine (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 w (ehi7 +x3wvcshen it is immersed in water. What is the specihsi7xcv 3 w+e(fic gravity of the object?

  A container of water is placed on a scale, and the scale reads 120 g. Now a 2gcsc.,9 a/ tr:bdt d1 mqnc9z.0-g piece of copper (specific gravity = na/md9tct. 91c dq,sz r: .bgc8.9) 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 ogmig5;* 5lmj d,v * d)v.arylxf $2700 \; kg/m^{3}$ 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 .db3l9xxmr i +te; e(v,fv-ls pyt-,xand diameter 2.0 cm will just barely float in wvrmt+i,-x t(bx,ey9xv-ld f3 l eps;.ater. What is its mass?

  A rectangular box of negligible mass measuuc*hqqq 7 x9i: 8gs5/ht6 jxuures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of massh68jq :i qx5xgh97 *u uqc/ust 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 60mks fi d+dgzl8+9e* 8 zgq1rtw7rq pthe water. The weight of the displaced water is 2000 N. What is th869igz*gkf rld+ +7zt8pmqsed1rq 0we weight of the object?

  A solid object floats in water with three-four 3al+d*)cuda4kj hy 8mths of its volume beneath the surface. What is the object's densihmu4)+jdc3 ladk y8a*ty?

  A 200-N object floats with three-fourti1)h -7wrxjky d-0srfwnd5 f5hs of its volume beneath the surface of the water. What is the buoyant f )df wiw5f d-0rkr5nj71-hyxsorce on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm t 8+b8tji aqa,chick. What is the minimum area of the floe that will just support the bear in saltwater of specific gravity 1.03? ,i acja88b+ tqThe specific gravity of ice is 0.98.

  Liquid flows through a pipe of diameterg 9 mch i8ye-1aazq5.s 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. There 8w)1ju8df kxs is a 2.0 cm diameter restriction in the line. What is the velocity in thi x1udjk8 w)8sfs restriction?

  Water flows at 12 m/s in a horizontal pipe with a p1 f-r (+p oaez5b4;ub frvd v+yjys9b9ressure 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 drinking a(pwc+hi3 ogxcof :4mpg8(z0 d dp8a3 fountain with 300 kPa, if the fountaig pwocdi3a80:cp(43gzahx(d8p m+ f on is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in tvm)/p,f4fel v he bottom of a water storage tank that holds water at a depth of 15 m. At what rate f e,plfv/v)4mwill water flow out of the hole?

  Water flows through a horizontal pipe of cross-sectio,4lo:+xcnk+ki+u 9huohb )w vnal 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 tvd-nhe4 4/n 3hu3 mwxchqik21z3 oumzu /l 4*gake 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 neglect any drag effects due to the uppn m hliu 412-zd/3vn h*e/ 4uco3kxzhw43mugqer part of the funnel.

  Suppose that the build-up of fatty tissue on the waljg+g+7, f st:nj ikk9bl of an artery decreased the radius by 10%. By how much would the pressuk:+njtgfgk i s7j,+b9 re provided by the heart have to be increased to maintain a constant blood flow?

  Two narrow tubes areu9u4 kh vl9uj. placed in a pan of water. Tube A has twice the diameter of tube 9h.l9juu 4 ukvB. If water rises 24 cm in tube A, how high will it rise in tube B?

  The surface tension of water is 0.07.s udu)l13tgp3 N/m. How high will water rise in a capillaryu31. sd tgpu)l tube of diameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capillary tubck, lb lnbmo5)+z9;u0 m2 uoaie with a di2ku) 5 ,mcnu;l+ o zbbalim90oameter of
0.50 mm?

  A narrow tube is placed t1uyv ce78 ot+vertically in a pan of water, and the water rises in the tube to 4.0 cm above tyet+ 1 oc7tv8uhe 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 ; 7s7 9kuz*4 tfeyglg/dflf4yz( )ryxsoap film 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 x*fz;gy 4fy4uk ld lfy ) r/z(s77tg9em side?

  An adjustable rectangular frame has length 12 cm and width 5 cm, and o)g so ;t8,jd;l fhs0wis built in suhdl,)sf;wtj 0s;8goo ch 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 frame is 12 cm square?