The three common phases of matter x08w.cs2 wup-d * qh/edq4d3c9 lka-e-rcdmd are

  Density is

  Substance A has a density op*n z2is pb3 jjwa914*8rwm jkf $3.0 \; g/cm^{3}$ 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 followinsn -:p s9*bl0qieed+cg is not a unit of pressure?

  Consider three drinking glasses. All three have the ell yuki2 9)g2same 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 pressu 29ke2 yguli)lre at the bottom?

  What is the difference between txle 7j:chwtj ,(,/mm3 rawuq-he pressures inside and outside a tire called?

  When atmospheric pressure changes, what happens to the absolute p) ml 2fd g d1f,m haxv*x;0y/1xmtnk5cressure at the bottom o*ahnf m/12k1vxd0xlf ;yx 5gm)dtm,c f a pool?

  You are originally 1.0 m beneath the surface of a pool. If yu7y2d6 zgf ,wj5wwn 5jou dive to 2.0 m beneath the surface, what happens to tdwu752gjjw6,y 5z fwnhe absolute pressure on you?

State Pascal's princip daf:v3bu-p0-ybh y ;ile.

State Archimedes' principle.;2ct xw1; a )fh qj(jn-o-zgmx

  $50 \; cm^{3}$ 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 dee.lvd :/ qxdo/ vfgr0*d :dofc7per into water of constant density, what happens tog/o0./::r f vdf qoddc7ld*xv the buoyant force on it?

  Salt water has greater deqo;b+ ysy i,h; su4sb;nsity than fresh water. A boat floats in both fresh water and in salt water. Where is the buoyant force greatebsss+u 4h,o;b ;qyy ;ir on the boat?

  Salt water is more dense than fres .fhj8.ib3zyph water. A ship floats in both fresh water and salt water. Compp.3i jzy.fbh8 ared to the fresh water, the volume of water displaced in the salt water is

  A steel ball sinks in wa asx8q -28 ht4csztrk2ter but floats in a pool of mercury. Where is the buoyant force on the ball greater?zc2ks t8tra 8q42s- hx

  A 10-kg piece of aluminum sits at the bottom of a lake, right ne h r.*i6r*qk1 d/eae6hty,srsxt to a 10-kg piece o e *q6,dy rer6s.rshi/tk*a1hf lead. Which has the greater buoyant force on it?

  A piece of iron rests on top of a piece of wood fg4 j7f ex-eo x.x7jkps/js8w+loating in a bathtub. If the iron is removed from the wood, what happe gxxxsjfp.7 os7ek4e8j-+jw/ns to the water level in the tub?

  A piece of wood is floating in a bathtub. A second piece of0 9zhr2,w1oll)dmsgi33ns kp 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 wmh3zw91 l )3,onds pr0gs2li kater level in the tub?

  Water flows through a pipe. The diameter of kbwl7qt-seq o v3xa +8 7d/y7ethe pipe at point B is larger than at point A. Wqowaed7- +y3 qxvtl8/s e77bkhere is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the mn6..bm gg5jf pipe widens to twice its original5.m.6gg njmb f 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.g )c5o awnraxj*f1o4 f7i iyyy/1ep)5kr h (u narrows to half its original radius, what is the flow speed in the narrower se)a 54p koiywr1yxhg. i5*oa1)ue cy7r/f (njf ction?

State Bernoulli's princic7k er ingr34a 5nju((ple.

  Which one of the following is associated with the law of conservation of eo0 f fp7ncm*0d2x s)janergy in fluids n0dxf )fmjpa0o2c*s7?

  As the speed of a moving flu b0oz+6p, 6h.fzjxb zwid increases, the pressure in the fluid

  Water flows through a pipe. The diameter od81 6pyv oe .krmmau3c5 v j5klnde);*f the pipe at point B is larger than at point A. Where is the water pressure grek)p1 vc;md5 eo 5y.e nj83kdrlvu6 *amatest?

  When you blow some air above a paper strip, the paper risiz dju0(0+vip pu*9gfes. This is because

  A sky diver falls through the air at terminal velocity. The force u4 -a84a(brvvxlz 0mbof air resistance on4l-vzxa ra4 b(0b 8umv him is

  Two Styrofoam balls, of0vlntbk-rdr 6 :y4k)zy+l6l s radii R and 2R, are released simultaneously from a tall tower. Which 6:kd 4l+lr 6ltrkn)ysyb -v0z will reach the ground first?

  When a small spherical rock of radius r falls through wa y.p *g8cps8e7ahyk t-ter, it experiences a dr* 8.-c hypsg yeak87ptag 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 tuuv xj9q*qy:d/t4c8 khe flow of fluid through a narrow pipe? That iux9ujq 4/*t:yd vkc 8qs, if 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, buup rjv7j/+6 ols0pjx 4t pipe B has twice the diameter of pipe A. Water undergoes viscous flow in bojj j/v 4xlposr+u607p th 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+o u;a 7al,hmw, but pipe B is twice as long as pipe A. Water undergoes viscous flow in both pipes, subject to the same prew ;ah uo7,m+lassure 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" taste seems fj;2enihb/ 3 zto be associated with oil spreading out all over the surface of the soup, ins;zbjfi/ nhe3 2tead of staying in little globules. To us "physikers", this is readily explained in terms of

  When a tube of diametr hjdd0lp,*b;a/ig3 fl5 n.e/m q2 wdxer d is placed in water, the water rises to a height h. If the diameter were half as great, how hlrned; wf, gdahm52x*0b // 3d .qjpiligh would the water rise?

  Certain insects, sucshjcq9vx 9i ck36(7gk h 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, etc. What is the weightqc96(hsc3v 7igj9 kkx of bug B?

  Certain insects, such as the water bug, are sufficiently lightweight the t. l 365tw;h /(*gtacw0nvjwg xcdv1at 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.nv 3www . v5;ac1lh 6gt*(dt0xjgc/et 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 di+jen 69 ,glgoymensions 2.00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. What is its ogy9nlg,e 6+jdensity?

  A liquid has a specific gravity of27 u 8eqabs0i ,grlv-o 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0sp5 hx u5nmn)(t18 vrs cm x 4.00 cm. What is the maximum pressure it can exert on a horizontal surfacehnu vpxr55s sm)(tn 81?

  A person weighing 900 N is stl,fg k,7z eu s atkz3e9*zskrg( 2ry5m68zg-canding 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 of 120.0 m ioze zxepd.183a 4hoo0n 0.1dx4zo p3 a ze8oheothe ocean?

  A circular window of 30 cm diameter in a y/jc9w*( ;qpb;kvsiy submarine can withstand a maximum forcei;vbsc y*9y/qk;pjw ( 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 pfc f:;ow19*n sxuc) fcressure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below the surfacvh itz*r,czoz3- z*mus)49v zy eo(*je of sea? (The density of seai3 ryzv,**os*z (zmvjz) c9ueth-o4zwater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure atc 3 x0pi*-4 e7sjticci a location 15.0 m below the surface of sea? (The densxicj 0p*43i-c 7ct eisity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small pistohgy w,bux,x;h 3f:/wx n of a hydraulic machine. The small piston has ;, /fu wxh3hywgbx:x ,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 radius odrv(rq s, *:oof 5.0 cm and the large piston has a radius :odv*sqrr (,o 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 piston?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter hydraulic piston. What fg zp6 u7anup-7 g-;foimgpl16 orce needs to be applied to a 5.0 cm diameter piston to accompl1fgg z6mppunu-;l apo6g7- i7ish this?

  The small piston of a hydraulic lift has a diamet)s513u0zpp qcb, fmxner of 8.0 cm, and its large pistonf0q pp)xucb3s1z, n5 m 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 30 N -u1u gq0zpcj; in water. What is the buoyant force of tuqg; z1 puj-c0he water?

  An object has a volume of k,8r1w,6jxfdf )ip(cjt3st i $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid irob /r y*.xsh2min is supported by a string while submerged in water. What is the tension in the string? (The specific gravity o 2ri./xmb y*hsf iron is 7.86.)

  If the density of gold zwjeww-0m.3tr g 5u61x * wfd90ezpujis $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarine (dennck16i(.xj y tsity = $7.8 \times 10^3 \; kg/m^{3}$) 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 is61mhw.*lf , uknr,xb(rml1 oz in air and 6.86 N when it is immersed in water. What is the specificu(bnf kmxh, w1 rm zl16r.,ol* gravity of the object?

  A container of water is placed on a scale, ats 0lj m2r((nqnd the scale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and l(2 rs0nq l(jmtowered 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 densitvx31(n id2grey 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 b en6n7vk44bi qarely float in water. What i nk bnq46v7i4es its mass?

  A rectangular box of neo-xsfittp 83gbya k6.,: r2nk gligible mass measures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of-8ktk o g 6,xt:yn r3apbf2si. 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 water. The weiv katl+1l. k).l uf,nq;;zxhgght ol za1,.g)uf;+x nllq kt.h;kvf the displaced water is 2000 N. What is the weight of the object?

  A solid object floats in wdh6 . z qgeo usrs7gl7da/ jsp/c;/-n8ater with three-fourths of its volume beneath the surface. What is the object's densi6d8gu-s/7p 7s z/ch . d;q/ogrjlnaes ty?

  A 200-N object floats with three-fourths of its volume beneath tc3(6lmkdyb:z1/ 4y e q4gxzkvhe surface of the water. What is the buo4z(m3d/qy zyvb6e 4kgk1 lxc:yant force on the object?

  A polar bear of mass 200 kg stands on an ice 7 dqapfm-)bp6floe 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 gravity of ic7f-qadm)6bpp e is 0.98.

  Liquid flows through a pipe of diametb4w7;i adus, :jyz9yber 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diamvwfx84bd0 ig,nzj0m9wyv7 2ueter pipe at 1.0 m/s. There is a 2.0 cm diameter restriction in the line. What is the velocity in this restrictnw4djwbuv070gxf vyz2 m9i 8 ,ion?

  Water flows at 12 m/s in a horizontal pipe with a pres6 oh8ll.5fh nbsure 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 drinking foun16v g,mdh gvju0ad 7z0tain with 300 kPa, if the fountain is 30.0 m above the6hjadgv17 u dmz 0vg0, pump?

  A hole of radius 1.0 mm ob2( ta sm(w:ulccurs in the bottom of a water storage tank that holds water at a depth of 15 m. At what : (l2wtm u(bsarate will water flow out of the hole?

  Water flows through a horizon.g ba- 5h+paahtal 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 t )kkmvnn8m1 ;aake to pour 4.0 L of oil through a fumvn; n8 k)mk1annel 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 funnel.

  Suppose that the build-up of/umg,;i y jcx2 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 to maintain a y2,g/ ; cjmiuxconstant blood flow?

  Two narrow tubes are placed in a pan of water. fl r-wtth jw;,ua. x/7Tube A has twice the diameter of tube B. If water rifh-7xr,wlj tu /a. t;wses 24 cm in tube A, how high will it rise in tube B?

  The surface tension of water is 0.00uv rqru9yqj3 +4im4b 73 N/m. How high will water rise in a capillary m j 4+r4uru0ibqyvq39tube of diameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius ri4diyt0 . -/eih rf,kvddmz3a +se in a glass capillary tube with a diamed4kt,- ry/v3 .0iazie+dhd fm ter of
0.50 mm?

  A narrow tube is placed vertical*;l3fj- n utxdyce z*-8la-uyly 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 liquid is lowered to one-half its *uyft- d lu-cxlayj3z-*ne;8original 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 mwak+i2 nrc ib8k8b*8q i 49vqm 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 muki 498b8b8+qicn* aqk vwi2mrch force does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and widt7x) cxv//ka uth 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 has surface tension 0.026 N/m. How much work is required to move the adjustable long side so that the frame is 12 x7// t)uxkacv cm square?