The three common phases of 1m(j-/wp n okcv.7nql;r2 pqb matter are

  Density is

  Substance A has a dens 09 q7pd4fowocity 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 prrgtz uf -r278g)mk(eup +ld:kessure?

  Consider three drinking glasses. Ag 0(ub8zm 7;lel6d jfepd 1n4ell 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 liquid pressure at 7 8lud6 (f0eepgzl4bn;edj m1the bottom?

  What is the difference between the pressures inside and outside 5aw*,gcxf sk 1a tire called?

  When atmospheric pressure changes, what happens to the absolute preslm.pl-ra4dk 8w a9y +nsure at the bottom of a pool warykd +n8 lp4a9-.ml?

  You are originally 1.0 m beneath the surface of a pool. If you dive to nj5z2k re4g7e6b+qxh+nmh9 u2.0 m beneath the surface, what happens to 9 nee j+xmgrhq7 nbh4+k2z5u6 the absolute pressure on you?

State Pascal's principle.3*pm wiojhxw30lg6 -flj9y bt7 gm s59

State Archimedes' principlebdqlnsmt 0e9j00rg7() 5 elvm :gpu/q.

  $50 \; cm^{3}$ 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 deepy0 vzxc1sflf/ pw 2;3-vw0oeeer into water of constant density, what happens to the buoyant fof v0wc e-3ovy0e1lw2sx; zfp/ rce on it?

  Salt water has greater density than fresh water. A boat floats in buc tq ;g+wo( yz0*ju)hoth fresh water and in salty oq+hjuw;)zg c0u (*t water. Where is the buoyant force greater on the boat?

  Salt water is more dense than frest zn;lfhycumi phh 82mkxf.3 ( d;-;9ih water. A ship floats in both fresh water and salt water. Compxu h3. d;y9f8lpc- ntih;f 2mmz;k (hiared 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 thotq3 glz 0wmqhh(.* w0e buoyant force on the ball greato *0w0mh q.lq3(wthz ger?

  A 10-kg piece of aluminum sits at thellaxxyzgwm( -l fq* s*6w*u. : bottom of a lake, right next to a 10-kg piece of lead yx(mz.fsgq-6u*wl x * al:l*w. Which has the greater buoyant force on it?

  A piece of iron rests on top of a b(v80tezm (6a3lq t05dgbq zjpiece of wood floating in a bathtub. If the iron is r68ble3(dt a( t0q5zzvbj0 mgqemoved from the wood, what happens to the water level in the tub?

  A piece of wood is floating in a bd6 .(ucj - qnftw*yr*dathtub. A second piece of wood sits on top of the first piece, and does not touch the water. If the top piece is taken off and placed in the water, what happens to the du fy (*.t6r nwj*-dcqwater level in the tub?

  Water flows through a pipe. The diameter of the jpk2f -dn u* 2jyvab,+pipe at point B is larger than ujdpaj- ,+n22 *kbfvyat point A. Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a hor(p:2j 4-mut uq* lz9 axdwre6qizontal pipe. If the pipe widens to twice qrdule6-* 4uwq :tp ja9x 2mz(its original radius, what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe nd;nz8 eu:dhcej hv t0*tq3c7 4arrows to half its original radius, what is the flow spee4 :ej thhu78cz03ctdqv;en*d d in the narrower section?

State Bernoulli's principlepk0xyh2tvjep +0fk0qdf2l;/.

  Which one of the following is associated with the law of con0 v-c k7msc1yeservation of energy in m0s-7yc1c k evfluids?

  As the speed of a moving fluid increases, the pressure in the qwe2rapb4 a-nc3kja1tm-x0/ fluid

  Water flows through a pipe. The diameter6t/22panjc zx nw u8 hpul(8l+ of the pipe at point B is larger than at point A. Where is the water pres (nhpz/wujta pc6 8l n2l+28uxsure greatest?

  When you blow some air above a paper strip, the pagt m- 08 khi71dexr0zmper rises. This is because

  A sky diver falls through the air at terminal velocity. The force of air r(9lc)l 0jz -h zncp-dkesistance on him -(k9c0 l)dl czj-znhp is

  Two Styrofoam balls, of radii R and 2R, are released s69skgq )-.pkrmjd2u limultaneously from a tall tower. Which will reach the grounq 9l r6)j mkg.pu2kds-d first?

  When a small spherical rock of radius r falls through wamtg3 0kd0stm6 ter, it experiences a drag force g tdk0s t0m3m6$F=arv$, 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 thro6/bo uf1cx: fgugh a narrow pipe? That is, if you made a 10% change in each of the quantities below, wc:ofb1fug /x6hich would cause the greatest change in the flow rate?

  Two horizontal pipes are teqvkn 6i/z s7p,raa(*he same length, but pipe B has twice the diameter of pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure di pve7 (k*a,a/rizqns6 fference 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 have the same diameter, buee /* )9n)tro3dsc.omkod2 zbt pipe B is twice as long as 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 bsmoc*oteornd329ze. k )d/ )pipe B is Q, what is the flow rate in pipe A?

  When soup gets cold, it often tastes grease,a-qeppjtc ;30 asae. 0 csl*y. This "greasy" taste seems to be associated with oil spreading out aaj s0-e ac.p0e cpsqa,e;lt*3ll 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 diameter d is placed in water, the water rises to a b /+9fllp xrsv i22ti:height h. If the diameter were half as great, hop/ 29lfl xit:i 2r+sbvw high would the water rise?

  Certain insects, such as 56qga/8eqj q8*i w;y pw pen3:g5u fprthe water bug, are 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 twice as big as bug A, in all dimensions. T3q p5if 8g/e rqa5g*8eyww6upnpjq ; :hat 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 sufficientg yvw82tug/8*y ;bp(mlls7 :lbn4l flly 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 2mvbyu l/7y8b tgw8s4nf:* pl ll;gl (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 4.00 cm has a mass of 30. wf.5cv hyy6+x0 g. What is its den.x+ v 56fhwyycsity?

  A liquid has a specific gravity of 0ycwu6 4aiuvt3 kr7 2c9.357. 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 thekj41ej u9v*6qdv;q js/ fr1 rw maximum pressure it can exert on a ho9 eqjd1r jqk4 /6r*juw1f;v svrizontal surface?

  A person weighing 900 N is standing on sx,ad6fmq* a6 taxksz6 2ib3,au/aq i ;nowshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must k2-sprmw.-u:d s,sk ia submarine withstand at a depth of 120.0 m in the s 2s:p-ku m,is-kwd.rocean?

  A circular window of 30 cm diameter in a sgk(bv/kmv 1;+ obmsk7ubmarine can withstand a maximum force o(17 mgv/kkkvobs m ;b+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 the absolute pressure is 300 won)x22y m b+ckPa?

  What is the gauge pressure at a locatipc5 l-vrr. ,hysgu5-q on 15.0 m below the surface of sea? (The density of sryv-u,gqrl5.p -hc 5s eawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 mq 3mkylpf/s44nr 53p c below the surface of sea? (The densikfcrqp5ny /3lsmp 34 4ty of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the sm )mb b0baj3x(yor*+ qzd0ht.uall piston of a hydraulic machine. The small piston has areaj0yh d0(.)b xa3qbtom rz+*b u $2.0 \; cm^{2}$. If the large piston has area $40 \; cm^{2}$, how much weight can the large piston support?

  In a hydraulic garage lift, the ej49p9+ kdzw vsmall piston has a radius of 5.0 cm and the large piston has a radius of 15 cm. What force must be applied on tvpdzek+949 j whe small piston 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 5ntdpe;r8 87ges4 ipbhydraulic piston. What force needs to be adpgb 7n4tpei8 s;e85rpplied to a 5.0 cm diameter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter of 8.0 cm, and its larg i vm/;lj xh(9b,d4fcme piston has a diameter of 40 cm. The lift r4,mvj h/bidf x(lc;9m aises 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 the buoyan r 7 dxbm1vuaauf:w 2zp50ci5.t force of th7ifm0pvc z:r.25bxa5 wa1 u ude water?

  An object has a volume of o. o;b5p++3 um7y0xobuch glq$4.0 \; m^{3}$ 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 (ix miq*f7p7p6uli t3water. What is the tension in thi*fi3( ipq l7t 6uxm7pe string? (The specific gravity of iron is 7.86.)

  If the density of gold wr gu0qxht 9t r(5.u(uis $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarine (density = ur)j ca 73s)g; i y7b0z6y+r vka,oraf$7.8 \times 10^3 \; kg/m^{3}$) 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 ink ap1 :h:cwx(wu*zjo1 air and 6.86 N when it is immersed in water. What is the specific gravity j(*x:ca z wo:p11wkhuof the object?

  A container of water is plaz3 s-ny11omfi+s( chvced on a scale, and the scale reads 120 g. Now a 20-g piece of copper (specific gravity = 8. 1on1si-c+h(z y vf3sm9) 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 mau+ 9 m//xp1 xpwfbic*dss 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 will just barely fl)rs4te8 c l89fer* pats)1 wvzoat in water. What 84 tvtsl*ep rc8))efrz9wsa 1 is its mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0 m wide, and 0. u/7xqci (pnm+2*0v c qdnlkt450 m high. How many kilograms of mass can be loadmx2* i/c v 0+q7(lnq pudnkc4ted 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 beneathphs pa1 a k.j-na5kp32 the surface of the water. The weight of the displaa- k papjp35k12 .nshaced water is 2000 N. What is the weight of the object?

  A solid object floats in water with three-fourths of its volu jzx 65qsa3d;yw2(na; em4ub.ag*p swme beneath the surface. What is tz4*aba62 s;ywds gju( ;q5n3.ex pawmhe object's density?

  A 200-N object floats with three-fourths of ;27rcrc:)pjz of n8mnits volume beneath the surface of the water. What is the buoyant force on the object?f:nr8mnco; r)zc 2pj 7

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What is c8 s*al0:w7 oxcd,dydthe minimum area of the floe that will just support the bear in saltwater of specific gravity 1.03? The specific gravity of icsdy0oxw,a:c7 l*dd 8 ce is 0.98.

  Liquid flows through a pipe of diameter 3.0 uwcxx.+i*;2c jvp4gycm 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 dgor;k7. ygt4 a 2.0 cm diameter restriction in the line. What is the velocity ktg.d o;r4 y7gin this restriction?

  Water flows at 12 m/s in a horizontal pipe with a va1o+n3h r3 p;sc2bxspressure 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 s 5i5lq:)tt0ai uuk6in upply a drinking fountain with 300 kPa, if the fountain is 30.0 m above the lt )q5iu5n:ua ki t60ipump?

  A hole of radius 1.0 mm occurs in the bottom of a water stor ixks843azikl9at)4.n+) 3 kzxqhcjp56uen eage tank that holds water at a depth of 15aece5 kzsq3 )pz8aih3l)t 9xn6 k. xkn4iu+j 4 m. At what rate will water flow out of the hole?

  Water flows through weg/glb;5 y0uvtvv zn,+ib4yq 1 jf3 ;a horizontal pipe 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 a viscositnc-k,zxjja 28no 3ow3y 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 kept 6 cm above the top of the neck, and neglect any drag effects due to the upper part of the zn33w-x cjn8jo,ak 2 ofunnel.

  Suppose that the build-up of fatty tissue on the wall of an a4,ixpu3qd4zvjx n/:i rtery decreased the radius by 10%. By how much would the pressure providedndq4i :pj/3zui vxx,4 by the heart have to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a panrc k4f1cs wp5 mkd19m. of water. Tube A has twice the diameter of tube B. If water rises 24 cm in tube A, how sk54mdpm.ccwk9f 11r high will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high w n2h+kvod btv2 zu,rq04yxt7 :ill water rise in a capillavorx 4kt bqny22u+tv d7 z,0:hry tube of diameter 1.2 mm?

  232

  To what height would water at 0 degreva,uehkua zq 5a 17vz*3o ;a5+pwjei/e Celsius rise in a glass capillary tube with a*aji;5vu/azz wake, u+5epao h17qv3 diameter of
0.50 mm?

  A narrow tube is placed vertozxl6p6f(+ +.8g7naihqm usg ically in a pan of water, and the water rises in the6z7u(ggimnoh.6q+lp a fx8s + 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 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 wj pb3kxy gef4sq g25d fg7l0:,ith a soap film formed within its confined area. If the surface tension of soapy water is 0.0260 N/m, how mg0 ,x73ff jlsdeygp5gq k:b24 uch 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 dg+x3pf1,n hf in such a way that one of the longer sides can be moved without bursting the soap film contained in the f3hnx1+g fdp f,rame. 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?