The three common phases of matter sz0u6r,po .s5glco 6nu532m9t 0fmkab lvh. h are

  Density is

  Substance A has a densit g2h ,k9aml-c)vw+9wd g1rkzy 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 a+i6 bth*c 7ziif0huvhaj y/nt/f:9+q unit of pressure?

  Consider three drinking glasses. All three have t 8w2fru 2 8l7oai,wgiyftm 15the same area base, and all three are filled to the same depth with water. Glass A is cylindrical. Glass B is wifiut5to 7l,afy1 8ww 228ir gmder 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 betweav5kvc k32j4gen the pressures inside and outside a tire called?

  When atmospheric pressure chan.7qcqx-f..kvq hr0 v wy8 aq/4+bobl ages, what happens to the absolute pressure at the botto lv 4vb-qqba.rqc7./.axq8 +k 0foyw hm of a pool?

  You are originally 1.0 m beneath the surface of h p9hjsis+. 01ycxga(a pool. If you dive to 2.0 m beneath thsjs 01ych(a9+hg. x ipe surface, what happens to the absolute pressure on you?

State Pascal's principlh 2nnimh4; ( nljv+fz0e.

State Archimedes' pri i.n8x9.0w i/nqasu jjnciple.

  $50 \; cm^{3}$ 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, x*kbqm)yo 6 j8what happens to the buoyant force onxkq8m* o j6y)b it?

  Salt water has greater density than fresh water. A boat floats in both 8*m1hp3 snwnu fresh water and in salt water. Where is the buoyant force greater on the mn1uwp8*snh 3 boat?

  Salt water is more dense than fresh water. A ship floats in both fresh w;9a(fbxf.qeb7n0-rk ya n ov*ater and salt water. Compared to the fresh water, th.7 kb one0ay(v*ba;f-9rx fqne volume of water displaced in the salt water is

  A steel ball sinks in water but floats in a p63lmk rwb8y 1xool of mercury. Where is the buoyant force on thr3k6mlby w 8x1e ball greater?

  A 10-kg piece of aluminum sits at the bo2;5e wqg /lshtttom of a lake, right next to a 10-kg piece of lead. Which has the greater gq w2h5le t/;sbuoyant force on it?

  A piece of iron rests on top of a piece of wood floatingydgtm1:g g*e ) in a bathtub. If the iron is removed from the woodmg* yg)eg t:1d, what happens to the water level in the tub?

  A piece of wood is floating in a bathtub.elt) (ia . o.kl-mtej9 A second piece of wood sits on top of the first piece, and does not touch the water. If the top piece is mo. t)a9-(ki l.jeetltaken off and placed in the water, what happens to the water level in the tub?

  Water flows through a pipe. The diameter of the ecybe)oon2 4:: j7lzh,lfz ,xpipe at point B is larger than at pz7ofjnle o bh:2c:xzl,e4, ) yoint A. Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s 7q8 qvb(kqpe :ymb4f. in a horizontal pipe. If the pipe widens to twice its original radius, what is the flow spe(qeb.b7:vmpyq 48 kfqed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontd6z- ih31g zlnigj d*knk v0)3al pipe. If the pipe narrows to half its original radiun-36din v)zg*1 zkdgikh 3l 0js, what is the flow speed in the narrower section?

State Bernoulli's prin 7pqe*,+gwen)c4mm fn7qy a: lciple.

  Which one of the following is associate n.au5zm 6 a.mc5g(ybhd with the law of conservation of energy in f5uhz56(mnay.camb g .luids?

  As the speed of a moving fluid increases, theik.j60c;ev nm pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at pf-sm9a 0gmn btle7l 93oint B is larger than at point A. Where ie9lg 3mt0l9s 7afm-nbs the water pressure greatest?

  When you blow some air a/0sg ,tyew. wabove a paper strip, the paper rises. This is because

  A sky diver falls through the air at terminal velocity. The force of aq. ixj/pecg7:pr7+ av6tw3m air resistance on him :taj 3g7 var.xicq pm7/+6ep wis

  Two Styrofoam balls, of radii R and 2R, are released s ekkf:(urjam7 7 :/owximultaneously from a tall tower. Which will reach the groumrjuaw77k :fo:(ke x/nd first?

  When a small spherical rock of rad*07 wvahp xu b+tqoa:+ius r falls through water, it experiences a drag force +aqxvah*u:btp0o+w 7$F=arv$, 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 ( fh 4;bs/nx t)g; h;adyv;eywa narrow pipe? That is, if you made a 10% change in each of the quantitie4hyt/ n)h sb ;egv;;(a ydxfw;s below, which would cause the greatest change in the flow rate?

  Two horizontal pipes are the same length, but pipe B has twi / d+qfre-qn6a9u raseso/c 52ce the diameter of pipe A. Water undergoes viscous flow in both pipes, subject to the sfs5q-r eu296ca a/n dsre/qo +ame 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 har8t3qb0 fy8 i5 1wdkedve the same diameter, but pipe B is twice as long as pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the ler1dykt8 3 bq8w 50edifngths 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 taspiru)a kvc:b;nv 8. g1tes greasy. This "greasy" taste seems to be associated with oica):r pgv.i8k ;1b nvul 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 diamef,zu,s 3h k x 9jhy):x5cyu2fbter d is placed in water, the water rises to a height h. If the diameter were half as great, how high would the wate:sh)9hc 3f,,kx 2uxzbyfjyu5 r rise?

  Certain insects, such as the water bug, auu.ea n)jg/6x btnfj5r6y1 g 0re 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 twice1u 5jnu)f/r6btn 6.0ga yegjx 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 yotq(b7/j7 xjbug, are sufficiently lightweight that they can run on toj77qx btojy( /p 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 2.00 cm x 3.00 cm x 4-io7q 1(dokp, g,ffp52hro ms .00 cm has a mass of 30.0 g. rhf o ,fp2-7kpig(15,qo sdmo What is its density?

  A liquid has a specific gravity of 0.357. What is i0dmv.q xsq snd8 /+/cits density?

  A brick weighs 50.0 N, and mebk ;n5 rcv1p w5bj:xl.asures 30.0 cm x 10.0 cm x 4.00 cm. What is the maximum pressure it can exert on ;b5: pxvkrnblw.cj 15 a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each snowshoe has ,en7bdj st.bsq+0 p-xarea $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine wita4cu dame8 -tykcl0+, hstand at a depth of 120.0 m in the oc 8e0m cakylt-+ du4ca,ean?

  A circular window of -d(i2),: irol im wypo30 cm diameter in a submarine can withstand a maximum force of)(oli-dipwr2, m:oyi $5.20 \times 10^{5} \; N$. 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 pressure is 300 kP8m4agi+ kr r(yh2t(tl a?

  What is the gauge pressure a ,xnm4 :j. vmfq5s3dcjt a location 15.0 m below the surface of sea? (The density of seawatd xq.5m3vf,jmcn:4 jser is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below 0zv 5fy apb.ir,1g,y nthe surface of sea? (Tyv by p 0,5fri.gza,1nhe density of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the smac zrb(;gz q)h;gx+1x hll piston of a hydraulic machine. The small piston has1; c(hqx ;gg)z+r xbhz 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 pn 7(g,vrs/zpa radius of 5.0 cm and the large piston has a radius of 15 cm. What force must be applied on the small piv p7s(rzgp,/ nston 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 hydraulic piston. Wbnv/z97k n9r dhat force needs to be applied to a 5.0 cm diameter piston to accomplisndbr k9z79/n vh this?

  The small piston of a hydraul2im4s lo1oan1u - dsu+ic lift has a diameter of 8.0 cm, and its large piston has a diameter of 40 cm. The sdo u ui-2+l1mno1 4salift 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 ih3ub/h l-p r0tr:np 2s,8 dunand 30 N in water. What is the buoyant force of thp0nbd8 hnu /2lp- ir,th3su:r e water?

  An object has a volume of 9+nlq 8j ,r injab0;rwu-it zs qwb-*+$4.0 \; m^{3}$ 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 submerged in wa8az*f m bjs)gvd (lqv-1b 1z5kter. What is the tension in the string? (The specific gravity of vjf5mz1q* vaz- b1)(db8sglk iron is 7.86.)

  If the density of golzo .clt0mgd)88 zm79zlxm36dei si 5gd is $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel qre 1b(5..oqi pbx+jre8 s st)submarine (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 immerse 9zyp zl xb3md66jgh:7d in water. Whatd6jm: hyp7gb36x9zzl is the specific gravity of the object?

  A container of water is placed on a scale, and the scale reads 120 g. Now umdo-:qn1aq -5gu (kj a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and lowered into th:-qn( j-5adkogmquu 1e water, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum with a mycr-2 f57q(l7zaips aass 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 - ifv2r4x znqwhf7-y/12 cm and diameter 2.0 cm will just barely float in water. iyvx 2n-f/qfw h 4rz-7 What is its mass?

  A rectangular box of negligible mass measures 5.0 m wbr qx3d+- :wnlong, 1.0 m wide, and 0.50 m high. How manyb-3rwn+ dx q:w kilograms 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 i2 gc.)t ggu5fgts volume beneath the surface of the water. The weight c)5ggufg. 2gtof the displaced water is 2000 N. What is the weight of the object?

  A solid object floats in water with three-fourths oflc0 da+;q4* vvadx9g-lc hm; b its volume beneath the surface. What is the object's dd m+ch9vg -4l; ;c qxabd*a0vlensity?

  A 200-N object floats with three-fourths of - 0wns*dljj.j ;sjjr ;its volume beneath the surface of the water. What is the buoyant force on the objeclnr; 0s.*jwj;d-jjs jt?

  A polar bear of mass 200 kg stan;e,j:vfkjb 6 t17/uhl wobkq8ds on an ice floe 100 cm thick. What is the minimum area of the floe that will just support the bear in saltwater of sl h8qo1b6f7 j/e:,k;vtkub jwpecific gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pipe of di rpwgq zn6(0m7n +h6mlameter 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe:;re+wrf0 ll jj..5onsdaly 4 at 1.0 m/s. There is a 2.0 cm diameter restriction in the line. What is the veloco5jldl;n:y4 0wa lrre+s.jf. ity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with a presc :na7hrdu :ib.6g9vu sure 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 2/ tuy ,4saylgtake for a pump to supply a drinking fountain with 300 kP,t24uag sl/yy a, if the fountain is 30.0 m above the pump?

  A hole of radius 1.0 mm occja w ,fla8/6zc:b(:(vlko z igurs in the bottom of a water storage tank that holds water at a depth of 15 m. At what rate will water flow ocz:k(: obv/6lg(f8zli jw, aaut of the hole?

  Water flows through a horizontal pip57g3ln 9cv o)b9rlb hre of cross-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 a4 p mzsfzphbfoh/b,zv b(6,* 6 viscosity 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 bb6(so,6zphmz vpffhz 4, /* bkept 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 dex ie/ /o)2zyj8ep h,o6 1odfbccreased the radius by 10%. By how much would the pressure provided by the heart hxc,yoe/ p d/1ej b8io2 o6z)fhave to be increased to maintain a constant blood flow?

  Two narrow tubes are placed ind8z- r(1n33uer q xa0mhehjdhh, 3y4n a pan of water. Tube A has twice the diameter of tube B. If watd e3dh a14nenm0zqjr38,3urh hh -x y(er 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 risah:zmazjew1bj 6 k9qk1 e-x+6e in a capillary 1akw9xbz+q mk hj-e:ejz1a6 6tube of diameter 1.2 mm?

  232

  To what height would wayue*)w) y,3qkicf 6d oter at 0 degree Celsius rise in a glass capillary tube with a6ce)* 3ku o y,)ifqywd diameter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and the water riswuf7ssu +v( 5h44l *mquf.w lses 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 by574lss uhuuvf4m+qs ww . (f*l the addition of some soap. What happens to the height of the liquid column in the tube?

  Consider a rectangular frame of length 0.i l z3e b-y5g0lj9il2 ffu,c jzjx(r+5120 m and width 0.600 m with a soap film formed within its confined area. If the surface tension of soapy water is 0.0260 N/m, how much force does the soap 2 5b3+ ijjrl-e5lx(g ujclfz0y ,9zfifilm exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and width :mi06 sbuty wobh3r71 5 cm, and is built in iro3 7:b1y6mtw u0 bshsuch 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?