The three common phases of ebcxwi163 nc)a0x 2iymatter are

  Density is

  Substance A has a density of 1uu+(tyzhowy9q y,, d$3.0 \; g/cm^{3}$ 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 unito0u.o(l:m aa k of pressure?

  Consider three drinking glasses. All three hav1zgqvydqcl -1yf*j (/w/pp 7 ne 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 bo y(qfcdq/z7-* 1wvpj/yp1 lg nttom, 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 out;kpt ; 1:vor,dcjnr)j side a tire called?

  When atmospheric pressure changes, what happens to the absolu8tl,8cjiy,.c5qwpn 3imcht- te pressure at the bottom of a pool?i8itlp5 -,c8,n t hccqym.jw3

  You are originally 1.0f4ii18z oy5d yyn2;ko m beneath the surface of a pool. If you dive to 2.0 m beneayo n;k8fy4y1ii5 z 2odth the surface, what happens to the absolute pressure on you?

State Pascal's principm708+yop f ptv gjhv8c/ bn;tbl+o l/.le.

State Archimedes' princiov kxidtk7/40ple.

  $50 \; cm^{3}$ 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 dep74z o(nb8xz y4+hv bheper into water of constant density, what happens to hz yvzx+4b(bnh8 4po7 the buoyant force on it?

  Salt water has greater density .7nm6 xhm adr/than fresh water. A boat floats in both fresh water and in salt watem7xm har6 d.n/r. Where is the buoyant force greater on the boat?

  Salt water is more dense than fresh water. A ship fli 77afq em03,qnwja5xoats in both fresh water and salt water. Compared to the fresh water, the vo na q,3fawqi7m5ej 07xlume of water displaced in the salt water is

  A steel ball sinks in water but floats in a pool of mercury. Wh ,k h2cjfz87l2yko-x0vblog0 ere is the buoyant force on the ball greatloo-cvx0kj kylfzg7,2 0b 2h8 er?

  A 10-kg piece of aluminum sits at the bottom of a la k81 9obiewg)fz-qy 0nke, right next to a 10-kg piece of lead. Which has the y -fn0q)k8og z9ibwe1greater buoyant force on it?

  A piece of iron rests on top of a piece of wood floating in a b, zc:krsofq16b7)p i*hn;jh oathtub. If the iron is removed from the wood, what happens to the water level in the tfh*sn c6ro 1o7p)i jq zk,b:;hub?

  A piece of wood is floating in a bathtub. A second piece of wood sits /yw)s 5h pr9. ra:pyweon top of the first piece, and does not touch the water. If the top piece is taken off and plw ra )wy./:yser9pph 5aced in the water, what happens to the water level in the tub?

  Water flows through a pipe. The diameter of the pipe acaov7p3q0j;at point B is larger than at poi3 ;ca7 voa0qpjnt A. Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. z a a;.6)d-d5txqnizoIf the pipe widens to twice its original radius, what is the flow speed in the wider sectiaa.o )dz nz qxt65d-i;on?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If*2gb2w5 hhrxk gamd; 2 the pipe narrows to half its orik5wbm a 2g xdg*h2rh2;ginal radius, what is the flow speed in the narrower section?

State Bernoulli's principl/-;8/ sxv*afmi hcrpt e.

  Which one of the following k rlohpo3)9xtt93 p5kis associated with the law of conservation of energy in fluiptx5o hlk3t9r)kop9 3ds?

  As the speed of a moving fluid increases, the pr2lo x/q,wx nb,essure in the fluid

  Water flows through a pipe. The diameter of the pipe at point B is larger than 8f/neav;0h jh at point A. Where is t /;8fv0nhajehhe water pressure greatest?

  When you blow some air above a paper striepo7+-)eaa mrx4 y+ vqp, the paper rises. This is because

  A sky diver falls through the air at terminal velocity. The force of air fj/qmjnzy.() resist( .qjfnj/y mz)ance on him is

  Two Styrofoam balls, of radii R and 2R, are released simultaneousm9cmrj l.kp-)bc h (hir r7h(;ly from a tall tower. Which will reach tj hrbk ri9.-h7c(cprm mh l;()he ground first?

  When a small spherical rock of radius r falls through water, it experie.83scv j nxrnj/-r8+ ;upetzoz28uk* sip2bences a drag fo p;n-x3trvc8j z82b.j8e +nsu*e2uipszkr /orce $F=arv$, 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 og2b4x 1 4ghjljn the flow of fluid through a narrow pipe? That is, if you1g l4hxgbj4 2j 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 +zd1cc*l1ty;i y+drm length, 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 pc+z*;y yd+di lc1tmr 1ipe A is Q, what is the flow rate in pipe B?

  Two horizontal pipes have the same diameter, but pipe B is t r6 cp-e n-k)u;dt2w(rvdxb0owice as long as pipe A. Water undergoes viscous flow in both pipes, subject to th-x w2r r( d;etbd c6uo0)p-knve 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 a p8b z( 0cwyz p4b dvxvuev48s*pa)95often tastes greasy. This "greasy" taste seems to be associated with oil spreading out all over the surface of the soup, instead of staying in little globules bev484 a(ycvd5p asb0zxzup) w*pv98. To us "physikers", this is readily explained in terms of

  When a tube of diameter d is placed in watfd3k* xuihq/5 er, the water rises to a height h. If the diameter were half as great, how hfxhi/3u *q d5kigh would the water rise?

  Certain insects, such as t9qvx 7je4td 8vhe water bug, are sufficiently lightweight that they can run on top ov4 vx e9tjq7d8f 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, etc. What is the weight of bug B?

  Certain insects, such as the water bug, are sufficiently0 :u pw(j0 sei,pf5tzxi8 a.go lightweight that they c.a 0xfpe0g 8,i u opj5iwt(zs:an 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 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 h/ s logx+/cvx c7io(u.as a mass of 30.0 g. Wha/u/xxlco gc o7 .(i+vst is its density?

  A liquid has a specific gb vqc vcy1g3u97f;hfb k eeq9+k* k/;pravity of 0.357. What is its density?

  A brick weighs 50.0 N, ajmv( 5ee 01qr-pkf)sind measures 30.0 cm x 10.0 cm x 4.00 cm. What is the ma105e- kfi j)e(mqrps vximum pressure it can exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each su2d lkd3qhx:6q1(km v nowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absol ( y:h:exlrh:nqr)jz ,ute) must a submarine withstand at a depth of 120.0 m in the xhj h(q:)zle::yrr,n ocean?

  A circular window of 30 cm diameter in a submarine can withstand a max jk7xhy-m/ 1khimum force1hkm7xjy/ -hk 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 presv ksjv+wj 4vb udb*m+,-l;t t.sure is 300 kPa?

  What is the gauge pressure .)dwgn-wj tn1 at a location 15.0 m below the surface of sea? (The densi1ndg. njwt) -wty of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below the sur/f vz1jl..t smface of sea? (The de l.t.vm1/fsjz nsity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small pistoqed,yf fft6bqj mek ( c1:)a;8n of a hydraulic machine. The small piston da6 mfj ,81;y):fe q(c bkqefthas 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 a rw: *bf y1wjpyj4x/e 2i9ue if9adius 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 wffip*: j49/x1 w9 i eejbyuy2large piston?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter z.zoagrw*ykdigj;/u 1 l4g9sp 8 y-8+ vrob+whydraulic piston. What force needs to be apra+w8do1gg wpz8lo; yk r4-ysvz. +bg9 i/u* jplied to a 5.0 cm diameter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter o/0o m (bbj oe78e kr-ginx4m8of 8.0 cm, and its large piston e8omi-m/b b8 je4 o n(07kgxrohas 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 bsqo,. uzcw12p or*; a40 N in air and 30 N in water. What is the buoyant force of zs,2boq.wo rpc1a;* uthe water?

  An object has a volume 8;yy77u83 0 b bzkrjlbl dax9jof $4.0 \; m^{3}$ 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 submergeda,,8ng- )r8t xthze bv in water 8-8,gne tx)a h,tbzrv. What is the tension in the string? (The specific gravity of iron is 7.86.)

  If the density of golu2e7lk7yvb9c2vl k i6d 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 = ):o0wkv ip2t 3w(foee$7.8 \times 10^3 \; kg/m^{3}$) 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 isscib 2pc wo/7e+)gd s* in air and 6.86 N when it is immersed in water. What is the specific grgs/sp 2 o7biw+ec*cd )avity of the object?

  A container of water is placed on a scale, and the scale reads 120 g. Now a 20-g 3av/ kupvuzo7 k8i)d--it 1 mo5aq+ny piece of copper (specific gravity = 8.9) is5t kp8o7d i/-vuvzkqi- mu)an1a +y3o 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 and density umoq64we5y f7 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 flowq) vwbmwoi7-t5+ o0k at in waterwkm +w)iwvt 7-o5b q0o. What is its mass?

  A rectangular box of negligible mass u(-cu60xqf.b i /berb measures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loaded onto thcf. eb/ 6xui-b 0bru(qe 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 watehfdxao dw92w:1ciizibozb/7v ,- 2m .r. The weight of the displaced water-7,2zzm.dxhf2av:wibo o wd/ b1c9i i is 2000 N. What is the weight of the object?

  A solid object floats in water with three-fourths of its volume beneath the cjq t gmhf-855surface. What is the o qf5jh-5mtg8 cbject's density?

  A 200-N object floats with three-fourtnh( iwgs* z2rg:c4xf 9hs of its volume beneath the surface of the water. What is the buoyant force on :shiz* nw crxg49gf(2 the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What is t4r ;kodcmx+u2 d98gn1xaa;w l he minimum area of the floe that will just support the bear in saltn ;xu;xc 482odmradgk1a+ l9wwater of specific gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pipe u6ynuh,o)3mm 3btp4 b of diameter 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diam:jm79hgaf* v-9suj t5f g qpm.eter pipe at 1.0 m/s. There is a 2.0 cm diameter rjg9vgm jusap 5fq.h-*t f9:7mestriction in the line. What is the velocity in this restriction?

  Water flows at 12 m/s inup:l4 0)ih nh qku(,bb uhwn7( 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 a p p sz4muwq/hh hsj*llb50ms61w 8qf 82ump to supply a drinking fountain with 300 kPa, if the 6 p/qsu288l150jfs4m wslq b*zhhmhwfountain is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the botto 6. mfa ucm+,f q/,dtazga;8leaug/i 2m of a water storage tank that holds water at a depth of 15 m. At what rate will wat+g /edt.af uf /aa,;8ci,gzq2malum6 er flow out of the hole?

  Water flows through a horizontal pipe of cros3wdgw5y a 9rmz1l9 i8oglj85v(m/ppr s-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 1g: 5ena9tnb t1jmh :ba;fnb)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 kept 6 cm abo9tnbngbj m; et: nf5a1ab)h 1:ve the top of the neck, and neglect any drag effects due to the upper part of the funnel.

  Suppose that the build-up o+5v *1g;os cdkg+ce iyf fatty tissue 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 tok v+1ic 5+g;g*d seyoc maintain a constant blood flow?

  Two narrow tubes are placed in a pan of water. v ywnivn(9v;/az; qgt (g2rqw. m*;cqTube A has twice the diameter ofa 2r;(itwv(wv;nm9z ngcq;.v g q *y/q tube B. If water 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 rise muxp;5;p3 dcg in a capillary tube of diameter 1. ;;cpumpd3gx 52 mm?

  232

  To what height would water at 0 degren;ziu7efns9) p1g t3 ve Celsius rise in a glass capillary tube with a diameter oz eu 19fsi)vgtn73pn;f
0.50 mm?

  A narrow tube is placed vertically in a pan of )bk* sm k8q:v/kq28u2dfndfgwater, and the water rises in the tube to 4.0 cm above the level of the pan. The surff 8q) /dv*k:2gnuksdb8mkfq2ace 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 98o+gxrfhygt :2me l :and width 0.600 m with a soap film formed within its confined area. If the surface tension of soapy water is 0.0260 : fr 8l2m :gxyh9toeg+N/m, how much force does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 ,ltwwxx-c ;/ kcm 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 ttwx k;w -c/x,lhe 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?