The three common phases of matter9sw mk q.:xn2hx8gy3e are

  Density is

  Substance A has a densite- trp9nbycq1bn+l 9jsc, +8 .hqco *wy 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 unit of pressure7.ji a.j wlye 9dswh+4?

  Consider three drinking glasses. All three have the c(h / jb14dhqco (vwb5same area base, and all three are filled to the same depj/och 4v5bc((1q dbw hth 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 liquid pressure at the bottom?

  What is the difference between thek/n+l lko c j,p e9,0*gtcpdurp. o:a+ pressures inside and outside a tire called?

  When atmospheric pressure changes, what happens to the + vs-w w 4ou -uivjr.4ncg3xn ftu3u25(a ggd0absolute pressure at the bottom of a pool435xgvjnwcu- u2d u 4n +a( 0ggvuri tf-ows.3?

  You are originally 1.0w wq6c543jrs n m beneath the surface of a pool. If you dive to 2.0 m beneaw4wjrs53 cq6n th the surface, what happens to the absolute pressure on you?

State Pascal's princip3v9ime /j*mq .yqj9so) clj a0le.

State Archimedes' principle/a72 o op+yzp1wo.k xk.

  $50 \; cm^{3}$ 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 in;x5pii m0im7 bto water of constant density, what happens to the buoyant force on it5p xi;mii0b7 m?

  Salt water has greater density thanih5 e *p57doyy fresh water. A boat floats in both fresh water and in salt water. Where is the buoyant force greater on the boat?5y57yohd*ip e

  Salt water is more dense than freshx( wlrqj.2b 2s water. A ship floats in both fresh water and salt water. Compared to the fresh wa2w bsr.q lxj(2ter, the volume of water displaced in the salt water is

  A steel ball sinks in water but floats iwsdw8, ipx;+ pn a pool of mercury. Where is the buoyant force on the ball greater8x wis+wp,d;p?

  A 10-kg piece of aluminum sits at the botto hsz:oz.s z8o5m of a lake, right next to a 10-kg piece of lead. Which has the greater hszs5.ozz 8o:buoyant force on it?

  A piece of iron rests on top of a piece of wood floating in a ,4 4qyqj0vy xzbathtub. If the iron is removed from the wood, what happens to the water lev4qj0,qyxz v4 yel in the tub?

  A piece of wood is floating in a bathtub. A secondn,p i60z-pvh brmhq *+ piece of wood sits on top of the first r*p6v n ,q+bmip0zhh -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 thek h*lasb3v9mxy*v 2v- a37zyc pipe at point B is larger than a9zm7v*x vaas 33vhckyb y l-*2t point A. Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s wi92xai:wisd+r;yq8;)xs 7 l gd k0rdin a horizontal pipe. If the pipe widens to twice its original radius, wha7d+ )krsx0 ai 8dw;si;9:dyqxl2gwir t is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe n3)sqhw; i ij 91iiftz( tw/4xvarrows to half its original radius, what is the flowwqf1tiszv)/9;jii tw3 h x(i4 speed in the narrower section?

State Bernoulli's prinuq7 uztc+ 9y r+3vu1wsi c:6tfciple.

  Which one of the following is associated with the law of co65x da0b 8 bmxtp+qar6nservation of energy in ma+ rx08patqbxb6d56fluids?

  As the speed of a moving fluid increases, the pressure in txfs2 oiic ;84ihe fluid

  Water flows through a pipe. The diameter of the pipe a fi2lc3,;qx (qfpoa,ut point B is larger than at point A. Where is thpxl2caq(3,,o;qfu fi e water pressure greatest?

  When you blow some air abobooojuk67 ku(m8 /ok*ve a paper strip, the paper rises. This is because

  A sky diver falls through the air at terminal velocity. The forv7:ko ;xxts x/ce of air resistance on :/vxkx x; o7sthim is

  Two Styrofoam balls, of radii R and 2R, are released simultaneously from a talloz9 / 8aqht1 5yyaav z44u)uxg tower. Which will reach th a5q4vg y )8a1zauyoxut 94/hze ground first?

  When a small spherical rock of radius r falls through water, it e*ii(yh1of1q rei: acxe-t7/ sxperiences a drag forc *rh-q te/: 1 iixca(1os7iyefe $F=arv$, 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 pip*u a s x-scdragh:5 sj7ba.9(je? That is, if5 :jur a bd s.a9a7sshx(gj*c- you made a 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 ofbo)+m c9 zdw,2xw+k*v f/nhba 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 x ,n2+ckwm/ +bw9 *bavzfhod)in pipe A is Q, what is the flow rate in pipe B?

  Two horizontal pipes have the same diameter, but pipe B is twice as long ukbxw 1-(bjcl.5 z+c 95pf kocas pipe A. Water undergoes viscf1w5p bc9-ocj+(xb ulz 5k.c kous flow 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 eh9a2 xqtcd*sz/ )ev) lkgrf+qnh63+"greasy" taste 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 is readily explained inqx+ 2)q6 *gv39klsfa ee+zdtrn / )hhc terms of

  When a tube of diameter d is placed in wadq6p t7zs3 lrr1+lyr/ter, the water rises to a height h. If the diameter were half as grea163 yr +rztpllqdr7/st, how high would the water rise?

  Certain insects, such as the waaq03 gc)uym8 yter bug, are sufficiently lightweight that they can run on top of water without breakin)q mygu8 ca03yg 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 weight of bug B?

  Certain insects, such as the water bug, are suf(q; wognk3vlpd k,; q)6xmc5r9ml co /ficiently 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 every dimension. That is, bug B is twice as long, twice as wide, etc. What is the maximumcx(q qv5 l9;pl)kro 6nmg/,;o kcdm3 w upward force on the feet of bug B?

  A plastic block of dimensions 2.00 cm x 3.00 i.r1m k5 : accpze9x2ocm x 4.00 cm has a mass of 30.0 g. What is im1zo2xce9pc k .ra5: its density?

  A liquid has a specific gravity of 0.357. What is its denwcc - ksrqs4ly .c1 idt0;;w4dsity?

  A brick weighs 50.0 N, and mt w)u/0q 9hz5(zjxv pyeasures 30.0 cm x 10.0 cm x 4.00 cm. What is the maximum pressure it can exert on a hort9wzyq)vupz jh0 (x5/ izontal surface?

  A person weighing 900 N is standing on snowshoes. Each snowshoe hc (*i:ti;rqfp as area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand at a depth of 1hj;yzdyb oxv dm -. vuerjz70z.0io 96f6-e/ w20.0 m in the oh f7ovbij-yxdwu9o.eyme z z/z6 jd0r.; 0v6 -cean?

  A circular window of 30 cm diameter in a submarine can withs )c026dqc1maqom ,qd ltand a maximum force 1 a)dqcmdql 2m,0cqo6of $5.20 \times 10^{5} \; N$. 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 jk5;a -7 fydodabsolute pressure is 300 kPa?

  What is the gauge pressure at a l+1r9j 4 xx9cgmitk)s1kd5 )zn waikn 4ocation 15.0 m below the surface of sea? (The denmjix4w1 tg4)i ar +k9kndx 9)zs5k c1nsity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m beloyqh9azg (9.(fwe h*mz w the surface of sea? (The density of se9 yzmhwzg*((ha qfe. 9awater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the 5- -s3qh7,/sh bje0q qfdxhwrsmall piston of a hydraulic machine. The small piston has arq7 xe wsbh3sr q-hq5j -d0h/,fea $2.0 \; cm^{2}$. If the large piston has area $40 \; cm^{2}$, how much weight can the large piston support?

  In a hydraulic garage lift, t:f55; mhxntuj2 yv)fptl k;. ohe small piston 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 to lift a car weighing 20,000 N on the large pistmpktox. tljv5hf; y 2)u5;:f non?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter )vkjyvea9ahw t8)w 0xz *c1y- hydraulic piston. What force needs to be applied to a 5.0 cm diameter piston to accomplishhxvwae j9-)v*azy8y 0)cw1 tk this?

  The small piston of a hydraulic lift has a diameter of 8.0 cm, and its l ifh8omn2.jq5n) wda4ug +s0jarge piston+u j)5 n8.ajhosdg w q04ifnm2 has a diameter of 40 cm. The lift 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 30z.waiyy6 m.,b N in water. What is the buoyant forc wy.,bzia.ym 6e of the water?

  An object has a volumegmt i5t2 eueqavjf g4 :6 .ev9pynh+09 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 suppo98+y klncg yqz:x.5m t mo(8kxp.ice9 rted by a string while submerged in water. What is the tension in th9mtxyq8 5m:z+ynp.8icco. 9 egk kx(le string? (The specific gravity of iron is 7.86.)

  If the density of gold3a am+:ibjs23 7fgivm0 (: s21 y rsyxkahyaw+ 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 p x+gee q i8*dg))zh6psubmarine (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 in3-v) 3a grv:lyil*kks immersed in wate 3-vaknr: l) viyg*3lkr. What is the specific gravity of the object?

  A container of water is placed on a scale, and the scale reyb0a(5 ltt4c/rrcs s7k+l( q cads 120 g. Now a 20-g pi40tsq5+(7lyct a crslbck (/r ece of copper (specific 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 kg an o;b4vi57 m,nwa f::+oyacizhczb4 8 nd 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 will just barh9t6m :jp2 5sb+n2w6 xwzdu frely float in water. What 9p2n 6uf+5:dms6bx hrzjw2wt is its mass?

  A rectangular box ofn;55 cz35lsek a--gunn yy/sr yc7/ xw negligible mass measures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilonasy7-5g5rsy/-nuncw/3 xlke5y z;cgrams 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 water1, zsq0bfhs+a. The weight of the displaced water is 2h1,fszq 0b+ as000 N. What is the weight of the object?

  A solid object floats in water with three-fourths of its volume beneath thetboqpj x;h-k* 4c-6zo surface. What is the ob*o-h; cqoz xtp4k6bj-ject's density?

  A 200-N object floats with three-fourths of its volum2+(sq -*fg bn pr0/atvey)zd se beneath the surface of the water. What is the buoyant forc+t0*p/q ygvbed-na)2rs fs(ze on the object?

  A polar bear of mass 200 kg stand)t5m hlnumdf, .)m5 jjs on an ice floe 100 cm thick. What is the minimum area of the ).dmj) 5tm n h,j5fulmfloe that will just support the bear in saltwater of specific gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pipe of diamtu1 pa 5h2aowt:ns9 b-eter 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 is a 2.0iyjss-2 m+cd5 k0 hy24uk2vmb cm diameter restriction in the line. What is the velocity inmd0my j2sv iyhku+2 54k2- csb this restriction?

  Water flows at 12 m/s in a horizontal pzkie -ra5 q t85gj-g0dipe 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 dri b;1)edwrjn4p1.szk97apf af nking fountain with 300 kPa, if the fountain is 30.0 m above tpf1 r7;da).s z9 kwjf4ab1nep he pump?

  A hole of radius 1.0 wzti/kk.wc4j h,angf8 (el( y5i)gr+mm occurs in the bottom of a water storage tank that holds water at a depth ok.hir5/w a k 8(gtjf)(ig+ nylc4,ezwf 15 m. At what rate will water flow out of the hole?

  Water flows through a horizontal pipe of ,eu vn)t/ 8vxvcross-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 would it take to pourk xfl4.zl 71wue ,3msr 4.0 L of oil through a funnel with a neck 15 cm long and 2.0 cm in dise4u1fl ,3 .kzw7 lxrmameter? 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 decreasz n/;r 3gf1:zfd7ctgeed the radius by 10%. By how much would the pressure provided by the heart have to be increased to maintain a constant blood flow zde:1 t/3;zcgf 7grfn?

  Two narrow tubes are placed in a pan of watev0p mdb (fw8ri.) )g ztv5srp9r. Tube A has twice the diameter of tube B. If water rises 24 cm in tube A, how hi.iw( ztb 0fp 85vr)msd p)9rvggh will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will water rise i ur3x8 fix7e+kn a capillary tube of diamex8 x+7 3rfkuieter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capillary tube wvjl8dmz7/n6atolv - 5ith a dimao/tn6 z v 7l-j5dv8lameter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water,c hahl61+p ,ny0d-vng y/jbv. and the water rises in the tube to 4.0 cm above the level of the pan. The surface tension in the liquid is lowerdh, 6+0gvp 1ybj nh-y/a cvl.ned 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 an+ya cfg hm1qv69kwqwl4*74 bqd width 0.600 m with a soap film formed within its confined area. If the suryhk97 +c4l v4 *qwa1 6bmqwfqgface tension of soapy water is 0.0260 N/m, how much force does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and width 5 cm, and is built xoo:jwfmy74r j2jp/2 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 xwjj:mo4fj 272rpyo /long side so that the frame is 12 cm square?