The three common phases of mattpbwsu3:1x 7wk(idt 1ber are

  Density is

  Substance A has a density of.ok-rx7vxu : 4 ij1uhc $3.0 \; g/cm^{3}$ 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 oooj3u c2f59u mf pressure?

  Consider three drinking glasses. All three have the same area base, andi1gbd+r7pm9 ie)p5ek.b l 6 it all three are filled to the same depth with wa6t dim1r9il p+)e bgbe p7ki.5ter. 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 liquid pressure at the bottom?

  What is the difference between the pressures inside and 5 g72 cnl6ifwn:-prduoutside a tire called?

  When atmospheric pressure changes, what happens to+num f6)lz.o s the absolute pressure at the b+6sonmu l.)z fottom of a pool?

  You are originally 1.0 m beneath the surface of a pool o9+zfyfdgckns,w9g,sv :vre-rt 1+ 3 . If you dive to 2.0 m beneath the surface, what happens to the absolfcdg:ft+- e9 ns vw1rkgs ,r,oy+v39z ute pressure on you?

State Pascal's principle. s q .1pdbdto)wr,c.+o

State Archimedes' principle.(vlowy vc1*n 3

  $50 \; cm^{3}$ 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 c,oikefyv7+w8 g*wmn. onstant density, what happens to the buoyant force,evyw o *im.fwn87+gk on it?

  Salt water has greater densi cg:4 3z4tcl:kiufco ,ty than fresh water. A boat floats in both fresh water 4 cfc3ic: uoztk,4 gl:and in salt water. Where is the buoyant force greater on the boat?

  Salt water is more dense than fresh :c k3n74lrm lkhgm)(bbur5d2water. A ship floats in both fresh water and salt water. Compared7lbrkc 4h3 m2d5):kn(mgb lur to the fresh water, the volume of water displaced in the salt water is

  A steel ball sinks in water but floats in a pool of mercury. Where is the buop3*:/x i0a,lrsds jtyyant force on the ball rs0:x/ ,tjap i*3ysd lgreater?

  A 10-kg piece of aluminum siujfd- j5w68z*n6cqn dts at the bottom of a lake, right next to a 10-kg piece of lead. Which has the grfd-*cz 6 6junn5 wqdj8eater buoyant force on it?

  A piece of iron rests on top of a piece of wood floating in a bathtub. If the i5 fb8tdid/v,a :kxor2b em2k 0ron is removed f/5b d8: 2o,mirake vtd20fkx brom the wood, what happens to the water level in the tub?

  A piece of wood is floating in a bathtub. A soop8 d*3o44 jvrov6mwv+qo+f econd piece of wood sits on top of the first piece, and f qo ro*j v+3ov6pd8m4o4owv+ 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 *k 1.h3y;zwqj8hlvmt/h0tol larger than at point A. Where is the hvm qy/k 3htj8wh t.*l;z1ol0 speed of the water greater?

  An ideal fluid flows atx1*f +mfai oz9 :dxdin6p7u rs v6/lm4 12 m/s in a horizontal pipe. If the pipe widens to twice its original radius, what is the flow speed in the wi1o9lnud dzmap vs4*f7f6 x6xr+/im: ider section?

  An ideal fluid flows a6ejb0xy h jpv-)he+w( t 12 m/s in a horizontal pipe. If the pipe narrows to half its original radius, what is the flow speed i bjh-x6ej0y vwp) +h(en the narrower section?

State Bernoulli's principl*tv4a dw :qnm gq-u*e;e.

  Which one of the following is associated witu89 c2dkini xpufz7 9+h the law of conservation of energy in fluids izdu9897 fck pxui+2n?

  As the speed of a moving fluid increases, the pressgz6:)o(2tkbz ygq tu h n1fd;.ure in the fluid

  Water flows through a pipe. The p9 jgp6g nwshr550i(ddiameter of the pipe at point B is larger than at point A. Where is the water pressurerjpn h6w95i0 gd p5(gs greatest?

  When you blow some aiak-;i7eam+5th ks) yvr above a paper strip, the paper rises. This is because

  A sky diver falls through the air at terminal velocity. i c.,s,vm6,88shcn-o o s9fryanhck( The force of air resistance on him sr k6i8h.cao,m- ,h8o ccnvf( 9y,s snis

  Two Styrofoam balls, of radii R and 2R,bujfm* f /p3 :v(uhe4a are released simultaneously from a tall tower. Which will reach the ground firufjm a evfp/3b*hu:4 (st?

  When a small spherical rock of radius r fallfabwv)(m tk63s through water, it experiences a drag6t ka 3bw(fm)v 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 through a narrow pipe? That)1wserjx6 /nyq 2 g;zd is, if you made a 10% change in each of the quantities below,s/yd)62j ;w nzexrgq1 which would cause the greatest change in the flow rate?

  Two horizontal pipes are the same le55pjseon 2w3q i u:t*lngth, but pipe B has twice 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 flow rate in pipe A is Q, what is the flownpjl3*5 wsie5t :2q uo rate in pipe B?

  Two horizontal pipes have the same diau 2/sh xfm05mi:xqq, czt7u ex:ms0+smeter, but pipe B is twice as long as pipe A. Water undergoes viscous ihmmx2e xq:qxfs 0s+s7mu, c0zt:5 /uflow 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. This "greasy" tast,p)oqx-; dlk8 uyver2e seems to be associated with oil spreading out all over the surface of the soup, instead of staying in little globules. To us "physikers", this iskrou;-d 2e),8 vpxly q readily explained in terms of

  When a tube of diameter d is placed in water, the water rises to a height h. i,5/ odeemka3 If o/ 3d,m5 aekiethe diameter were half as great, how high would the water rise?

  Certain insects, such as the water bug, araqe *z7od.7;c )sv+g s nwyrj:e sufficiently lightweight that they can run on top of water without breaking the surface tension. Water bug A hsgjc;r +anwy .vodz)7 7q:*se as 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 weight of bug B?

  Certain insects, such as the water bug, are suffic p8s lbve.nn /+q6ykai4id,6eiently lightweight that they can run on top of water wi8e6kl 4pq .n+yb i ,disavne/6thout 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 dimetteegt)p32/:dzr )eo(v;:bj7bken y;y( g m tnsions 2.00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. Wht3oteg:;d ;tt n/eejk2gv b (e:(p zb)7rmy y)at is its density?

  A liquid has a specific gravity of 0.357. What is its d)e)pod,ht h5h ensity?

  A brick weighs 50.0 N, and measures 30.0 cmvr6t oh9q()3j il h7we x 10.0 cm x 4.00 cm. What is the maximum pressure it can exert on 79 teq (vj6hholwr)3i a horizontal surface?

  A person weighing 900 N is standing on snowsfs7h )2uvd/2tvjw8l e;-h cjchoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) u,z5uem 89y) zc eocp2zj zs *)tv6-zvmust a submarine withstand at a depth of 120.0 m in the ocej vz-*s muyezvc2)uz9 58cz z)6ep ,otan?

  A circular window of 30 cm diameter inw qk)z 9y/)kcuk2b;h w03k 4cffka ot0 a submarine can withstand a maximum forcey tc0 k94) qkb ;kka/wfckh3u2)z0 wfo 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 pressure inh m 9u3rg-h0js 300 kPa?

  What is the gauge pressure at a location 15.0 m below the surface of sea?9m u 2ttu,n)m./p7 +uq-ph hsllm2wk.p azbu( (The density of seawat9mpmb2)hn7a z.up- u /wm+u ,s(ltl2ut.phqk er is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m beloy/h xco03rq6hk)io1 kf qo/+jw the surface of sea? (The density of seawo)o c36o/ 1 x0q +yjf/hrikkhqater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machine. yn kpsz+pr:fyu f*7p,xuimi u;754gcd 3b1o, The small piston has 13fdbifmyig ,uukpxu ;5 7 cz7p*+o: r,4sypnarea $2.0 \; cm^{2}$. 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 radic:ur d mj71)zwus 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 to lift a car weighing 20,000 N on the:mzrcj)7u 1 wd large piston?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter wuykkwone 7- z,7c b:hz.m17d hydraulic piston. What force needs to be applied to a 5.0 cm diameter pistz.7 z1k, cm:7wu wy o7n-kebdhon to accomplish this?

  The small piston of a hydraulic lift has a diameter o5n-n7xzx m67 4lbt xyhf 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a load of 1bnmx l 6-yx74n t57hzx5,000 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 0s- to 8a8aabeN in air and 30 N in water. What is the buoyant forc8o8-ab aets0ae of the water?

  An object has a volume ofel:+sde+: c e/wvg*s t $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is suppor64d8g abz+xbqc8tpbd+ n(; j ited by a string while submerged in water. Wq 6xan t+zb;cd i8+db pj8b4g(hat is the tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gold iwwao 72rjig. r, q05jts $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarid*b9dp+ ox wyjx8 - npnq2da:le233rine (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 ,(xzt4ix.hl+pu b an4 in air and 6.86 N when it is immersed in water. ixn+bup4z4xt, a .l h(What is the specific gravity of the object?

  A container of water is placed on a scale, and the scale reao. re2.qfvt t*)s 4ebqcf 0;hg7+g djfds 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended fe+;q* 0fj 74..brsh)dt e 2tcqffogvg rom 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; w r5n8x plqc0nro(-n 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 wi0hc 2egi:nf 2hs e3ug4ll just barely float in water. What is its mass chhu32gegefns02i :4 ?

  A rectangular box of negligible mass measures 5.0 m ld)vo 7qxw a** e5:zbvaong, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loaded onto the boxda a)w qevzo *x:5bv*7 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 beneajgmx tas5 0v 0 kvmers-hzf37mc :((+xth the surface of the water. The weight of the displaced water is 2000 N. What is the weight of t (jrkgxsm300- 5svx(at z7 hmfc:vme+he object?

  A solid object floats in water witf8)dr 3sfaio-civ 2:dh three-fourths of its volume beneath the surface. What is the object's densit r 3ov2ici-daf d)f8s:y?

  A 200-N object floats with tmc .p2i) rw0abhree-fourths of its volume beneath the surface of the water. Whatc2b)riapwm0. is the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 10iq vm kx( /antafi;p-4ei0n 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 1a0( m0n/qakt i ;i pi4xnevf-gravity of ice is 0.98.

  Liquid flows through a pipcsea)j*j j*zgva)q 3 k 05nnl(e of diameter 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter *oj1gt14/ mhiz 0kk32fpbgod pipe at 1.0 m/s. There is a 2.0 cm diameter restriction in the line. ip 0bjghotd/g 3o1k4* z2m1fk What is the velocity in this restriction?

  Water flows at 12 m/s inrtg 01 sj nws5 1wd1ygr2;x:md a horizontal 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 ad3-vfo-ipal7 pump to supply a drinking fountain with 300 kPa, if the fountain is 30.0filp -v-d37 oa m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of a water stoatnklv ek6 ghc1x*- v(5 q;2nqrage tank that holds water at a depth of 15 m. At what 5cvhq1e;- lvk6n*qn2gk axt( rate will water flow out of the hole?

  Water flows through a horizontal pipe x5v kd;zut-; cof 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 a viscosity of 0.20 Pa-s. How long woug0x, 3qv:krrq ,q c avqm9.-srld it take to pour 4.0 L of oil through a funnel with a neck 15 cm long and 2.0 cm in vr,k 0qrms.9qgqc 3, -ravxq :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 t-)k/arp jde.pt53 i peq9bq-se 8 arl:issue on the wall of an artery decreased the radius by 10%. By how much would the pressure provided by the heart have to be increased to maintain a constan rb5paq8s/ee 3t.p ra p9l)jkdi:-e -qt blood flow?

  Two narrow tubes are placed in a pan of water. Tube pvw .p-x i2gw-meb2v/j1kw5lA has twice the diameter of tube B. If water rises 24 cm in tube A, how high will v kw.152imbjw-l-pe/w xg p2v it rise in tube B?

  The surface tension of water is 0.073 N/m. Hol 44q0ube)kkg w high will water rise in a capillary tube of d 04eukk4 ql)bgiameter 1.2 mm?

  232

  To what height would wad q.5gb*x/a yxter at 0 degree Celsius rise in a glass capillary tube with yx*bd.aq g/5xa diameter of
0.50 mm?

  A narrow tube is placed vertidj3ts+ y*/ dj)as k0wk0 rrp*lcally in a pan of water, and the water rises in the tube to 4.0 cm above the level of the pan. The surface tension in the y3skj/ wdr0drl0+ t*jk* spa)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 0jx yy,25 7jkwhe4d m9c.120 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 wy,jy4k 5x2mh9cd7ej the soap film exert on the 0.600 m side?

  An adjustable rectangg042 kemxrojk2de :.)w y hlm3ular frame has 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 ha3 lge4yh k.20kmrd :2xwo)jem s 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?