The three common phases of matter aree9z d3 b6xmtyya9;g0w

  Density is

  Substance A has a densityxm80h)9 fsgg m0v t7fl 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 istf unh j:n*y)4 not a unit of pressure?

  Consider three drinking glasses. All three have bg7 ypkdo:dz1p/6, tnthe 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 thbz ,t1 kd6p: 7opgdny/an 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 be bt)fg*ko31ni)y u /zttween the pressures inside and outside a tire called?

  When atmospheric pressure changes, whaasgcy--t )k o4t happens to the absolute pressure at the bottom ota)-- k4goy csf a pool?

  You are originally 1.0 m beneath the surface of a pool.l8cvx77iawd8/79mwl(my o es If you dive to 2.0 m beneath the surface, what happens to the absolute pressure on a9vxl8c i7sl7mme(7w8 wd/o y you?

State Pascal's principlvnmad5 u90l-,m nc zkr3y 3t*ye.

State Archimedes' pri8tymc lds/((snciple.

  $50 \; cm^{3}$ 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 deep0ej.*ef7t rzrer and deeper into water of constant density, what happens to the bfjr0*e7z .etr uoyant force on it?

  Salt water has greater density than fresh water. A boat floats in both fres/v rp+5 b0n 2zw+ucec,pjr+vkh water +rck,vw /+u+ czerjpv5 n20pb and in salt water. Where is the buoyant force greater on the boat?

  Salt water is more dense than fresh water. A ship floats in both fre0yf 5ejeyz*e- sh water and sa0z -*ee5efyyjlt water. Compared 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 bt3q r 1:o2.8m,bmx1jc ha gyfkuoyant force on the bamhr1bg f k2x.3o:j18 ymqt a,cll greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right ne -hmfn0.qe.ul xt to a 10-kg piece f.eln-u0mh.q of lead. Which has the greater buoyant force on it?

  A piece of iron rests on top of a piece of wood flcvuy(r 3ni x;)oating in a bathtub. If the iron is removed from the wood, what happens to the water leve)c(uxin r ;vy3l in the tub?

  A piece of wood is floating in a bathtub. A second piecemt2bq5, zo8dnb;2a h o of wood sits on top of the first piece, and does not touch the water. If ;2tb85d b,ahz noom2q 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 larger thj-dg t(rosvg ),, j8duo+e:xfan at point A. Whejx: (+e ,sfjot8dr -,gvd ogu)re is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pii)a/0b 0wls rwi:)v9p3xa*7lgcg ce ppe. If the pipe widens to twice its original radiusi/g*vcxp e )ri 0lps3gwcb):aw 0a7 9l, what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If them:c5a..0k ii2nik;: 48 q heluyyuolt pipe narrows to half its original radius, what is the flow speed in the2.nm. il 8ioa: u5likk0q y yeh:4;uct narrower section?

State Bernoulli's principjkr pa,x .07ffle.

  Which one of the following iseb*:g8cgan 53uau; co associated with the law of conservation of energy gc*g:c 3auae8bun;5 oin fluids?

  As the speed of a moving fluid increases, the pr ycnho)zkvxt n,d/d+pp : n68k(/t/abessure in the fluid

  Water flows through a pipe. The diameter of the pipe at poin*vp1 srx g; x08gtvaski:5j /zt B is larger than at point A. Where is t* at58g /r0vpzs: kxj; xi1gsvhe water pressure greatest?

  When you blow some air above a paper strip, the paper rises. This is becauseey w9 sx3(;, u iiba7owi0pw6s

  A sky diver falls through the airzxks oi ;h-ev; eqk/gc6 ;f8/p at terminal velocity. The force of air resistanfhk /-x;pesv;q/;oz 8ekig6cce on him is

  Two Styrofoam balls, of radii R and 2R, are released simultatnmj(k6*q(wngy abt3h )e2 5fneously from a tall tower. Which will reach the groundf tne*m3(5wka6 q(nhjg b)2yt first?

  When a small spherical rock of radius ech1hzn-,qa:m4(jryb 05e j lr falls through water, it experiences a drag force 0m5-:nlc q rah1yj (heb zje4,$F=arv$, 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 antj3 c2b4)go* jr7l zpipe? That is, if you made a 10% change in each of the quantities below, which would cause the greatest change in t2c4* bjj zgotl an7r3)he flow rate?

  Two horizontal pipes are the same length, but pipe B has twice the diameter of x cad/p.j mh.u.h,l-c pipe A. Water undergoes viscous flow in bothp chdluc/ ,.xh a.m-j. 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 flow rate in pipe B?

  Two horizontal pipes have the same diameter, bi4 1 xf ivyxcv 22h*dcfw1fiv, zr/+5dut pipe B is twice as long as pipe A. Water undergoes viscouz4fx1c 2df+c r/iii *wv fdyh5,vv2x1s 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. Thi+v4sjsw2gn le6t 5 me95at;t ps "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 explaipg 25v t ltw;+ej95sea6s4tmn ned in terms of

  When a tube of diameter d is placed in water, the wateordjx4b o8.d fds(o ,1r rises to a height h. If the diameter were half(4fobod 8dxo.sr,j 1d as great, how high would the water rise?

  Certain insects, suchy1jb3 sipig18 as the 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. That is, bug B is twice as long, twice as wide, etci11yjbp 8gis3 . What is the weight of bug B?

  Certain insects, such as the water bug, are sufficiently lighr7bzy+ l f3 yigd1d0i0tweight that they can run on top of water without breaking the surface tension. This is possible because the water, due to surface tension, i70zg0f iyd1r +ly3bd 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 4.00 cm has a m,fm z-9/q fwbfass of 30.0 g. What is its densqw ,fzm9b -f/fity?

  A liquid has a specific gravity of 0.357. What is its density?(sdf pvdh2rv1, (umu0

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm. What is the ma/vs1cc q4rai o;v5r x;vrixa1 sv oc5;4;rq/ cximum pressure it can exert on a horizontal surface?

  A person weighing 900 4 y5+ri-bye tkpnnqgc 8;(x+ zN is standing on snowshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand at a depth e yw2c,y0;yn;uxfk0)i oft x/of 120.0 m in the ocekftcu;2,w x/;xy)0iyo0e n yfan?

  A circular window of 30 cm diameter in a submarine cmphh;v, sa4.nan withstand a maximum force ov ;m4s,nap.hh 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 pressurzrp4op:ys6l*(e q8 smrc k4a, e if the absolute pressure is 300 kPa?

  What is the gauge pressure at a louui v6xzjev) h.1 ndgk82; /uncation 15.0 m below the surface of sea? (The density of seaw8uzg k jvvni.xne1 ;)du2u /6hater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below the surface o8r)i ( m1 7*ylxkpmstff sea? (The density of seaw(rk1 )s fti*x8pmlm y7ater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small tnaaz6mav r6l6vdm mo 4; w:59piston of a hydraulic machine. The small piston has aredaarmtvw6z o:aml;64n5 9 mv6 a $2.0 \; cm^{2}$. If the large piston has area $40 \; cm^{2}$, how much weight can the large piston support?

  In a hydraulic garage lift, the gk9 m mnd/x6o,j8b( trsmall 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 20,00x( t6mj k8o9bdgnm/,r 0 N on the large piston?

  A 13,000 N vehicle is to be lifted by a 25 cm , (pao zxulkytca u+k n3w xa+0*a8u43diameter hydraulic piston. What force needs to be applied to a 5.4zu 8ca,+ uka0xn*ux3l tw pk+aya(3o0 cm diameter piston to accomplish this?

  The small piston of a hydraulic lift has.kcqg67c, )okp 8te c 80irbit a diameter of 8.0 cm, and its large piston has a diameter ofrec)7ic. kg6pt0o tbqi,ck 8 8 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 3gd syq3-5c7g f0 N in water. What is the buoyant force qsyc5gg7 -fd 3of the water?

  An object has a volume owe81 rd)0njfytn0px3j (u+aah3n ,fz f $4.0 \; m^{3}$ 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 wh*: 1uc8p 7krvph3zw lzile submerged in water. What is the tension in the string? (The specific graczzk*ur lh138 p:w pv7vity of iron is 7.86.)

  If the density of go) yew9l (qu4byld 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 submarine (density = 2ubo*)msb6 e k.j0z zb$7.8 \times 10^3 \; kg/m^{3}$) 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 ahzscl: dbe3 fel dseb0cy173 m)6q8g5nd 6.86 N when it is immersed in water. What is the specifi8edd: q 1sfs7b e ll3by5mhc0gez)c63c gravity of the object?

  A container of water is placed on a sc0d7u6 bmh m8szvgn jr/91y* jhale, and the scale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended fromj6bu hj0zn /dy1m*ghmsr v 789 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 x8-w7mvihw u; p7a. xo1.0 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 float 4ywjhq 1 95ownlqr/31bryd4gz )p;yp in water. What is its mas 5 hbzwj)wp 9pd1/ryql4o31yn r4qg ;ys?

  A rectangular box of negligible mass measures 5.02yv ;yz8bc)uyje+ vo9 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loaded onto the box before it sinks in +cb ) z;2uvy9ovy8j eya 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 surfactn0 3kyx: 5ri )mgkd*me of the water. The weight of the displacek53mkdgm itn 0xy:) *rd water is 2000 N. What is the weight of the object?

  A solid object floats in water with 1xi(ini314cvqydd 6/ zk)5z nqnkzk4 three-fourths of its volume beneath the surfaceqydzk1n d45vx6c13 )zikzinik/n q4( . What is the object's density?

  A 200-N object floats wik 46hsyp1 vab0,d69 yabe ;swcth three-fourths of its volume beneath the surface of the water. What is the buoyant ey,0 vw6adkbc s61sa9b ; hyp4force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thig p(ha9 / omucb73idg)ck. What is the minimum area of th3d c(oh)abm9i upg/7ge floe 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 wcv.16 amhus-lsq: o4pipe of diameter 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/i6x)es djgu6h. (b po)s. There is a 2.0 cm diameter restriction in the line. What is the veloco j)dsiebuh(g.) p6x 6ity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with a p-cxe16u-roe t ressure 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 ps.g9pyja53hnking fountain with 300 kPa, ihp g 5y.9ja3spf the fountain is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of a water sto pu39 tr( jczdo34hq6arage tank that holds water at a depth of 15 m. Atd3q 6(ajpohcrtz9 34u what rate will water flow out of the hole?

  Water flows through a horiz6yq3k9l pg:n ,cx7stkontal 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 viscosity of 0.20 Pa-s. How long would it take to pourspz1/ p 6;kbmcydw )y7 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 y/pzc pk6bs1wdm ;)7ytop 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 ofxf- 1 n67:iefet ot0ye an artery decreased the radius by 10%. By how much would the pressure provided by the heart h7nt x 0et1ei6f:eof-yave to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a panlh.fza+i ipd *(a24u u/*dg cq of water. Tube A has twice the diameter of tube B. If water rises 24 cm in tube A, how high will it rise in tube B(.2 u4/daz ahpuicq igld+*f* ?

  The surface tension of water is 0.073 N/m. How high will water rise in a capillx cep3k g)5x; w* arcuqw3gi:(x 53x; a rq3ge :)kwccugi*w(pary tube of diameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass cafwy8p;a4 4tvlzvrd-74e zi5)kg+i bj* zm l 2cpillary tube witka c-ly zmflep44t viv ;*+j4d8 rbz w)25gi7zh a diameter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and the water riseokh: y.hwpf,hqr20 .r s in the tube to 4.0 cm above thrk 02hpqo,: hfh r..wye 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 0.600s;demkl (8e55vv y*. diqq8vm m with a soap film formei em;.dv v(m8*qql kvsy5 58ded 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 m side?

  An adjustable rectangular frame has length 12 cm and width 5 cm, and is built iv k2.llh)2kizn such a way that one of the longer sides can be moved without bursting the soap film contained in the frame. Soapy water has su2 l)ki.v2zlkhrface tension 0.026 N/m. How much work is required to move the adjustable long side so that the frame is 12 cm square?