The three common phases of matter are 3q ah-p7:sbsd

  Density is

  Substance A has a density of mul(v9thw4fzw -98tx:ds sr,ya; r 7m $3.0 \; g/cm^{3}$ 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 azrb 6xm/tj 1bu*jf 4ada1 u:t; unit of pressure?

  Consider three drinking glasses. All three have the same acy)+ c5dh.l gf7zs mo.rea 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+ s.myo7gh)5 c lc.zdf 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 the pressures inside and outsid ils- .w9y. pqer3hgy2aa 2e+me a tire called?

  When atmospheric pressure chang7 rxo. ybe q459wsby1ul6ot i(es, what happens to the absolute pressure at the bottow(s7qt1buoyil6 r.y xeb5 4 9om of a pool?

  You are originally 1.0 m beneath the surface of a n a/fi5dh (-pvpool. If you dive to 2.0 m beneatav-n/i( fd5p hh the surface, what happens to the absolute pressure on you?

State Pascal's princit6)qo 0bssqfy ;wvf1:z ft 1x,ple.

State Archimedes' principle.-ghl;rshph t/ crdd-+n,( ob,

  $50 \; cm^{3}$ 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 deep) bc7k/u j,yf8uq)v zyer into water of constant density, what happens to the buoyant force on7jfk8zqybu y)uc, v/ ) it?

  Salt water has greater density than fredi0s*f i98eddsh water. A boat floats in both fresh water and in salt water. Where is the buoyant fdei 8 fidsd90*orce greater on the boat?

  Salt water is more dense than fresh water. A shi e.34g4fo1xi va awb+mp floats in both fresh water and salt water. Compared to the fafm3 b e1xgo.i+4v4a wresh 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 bv, 61irtnm k8huoyant force on the ball g 6,1mrn 8itvkhreater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right vv5 70.q7cve/ upv eipnext to a 10-kg piece of lead. Which has/.qu v ve7v7i 0cv5epp the greater buoyant force on it?

  A piece of iron rests on top of a piece of wood floating in a bathtub. If)l aiz5/ cr,dl; nng2q the iron is removed from the wood, what happens to the wa lq n,)id5c;a grz/2nlter level in the tub?

  A piece of wood is fl ne ic7yx:.z3c3xghl(jy29m yoating in a bathtub. A second piece of wood sits on top of the first piece, and does not touch th.cl 2gzynix 7e3x mcy3j:y(h9e 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 ofda ;jy-a zi1l5l hl5:r the pipe at point B is larger than at point A. Where is the speed of t;drz lihyl:-5 aa1lj 5he water greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe.e3: rc8bm8zpv:u p(z g;yk,gf If the pipe widens to twice its original radius, what is the flow speefu 3zekz,v(8pmypc r; gb8g::d in the wider section?

  An ideal fluid flows at 12 m/s in a hlq .dv k2ahrmw33bu.9.imr4 rorizontal pipe. If the pipe narrows to half its original radius, ab34lrw.2mdv9uh. m3iq kr.rwhat is the flow speed in the narrower section?

State Bernoulli's prinl/bda1:r/ rj:aqt yzu* *k2 miciple.

  Which one of the following is ahd.adle ,k)8fssociated with the law of conservation of energy in fluh, e fd8lk)da.ids?

  As the speed of a moving fluid ni +3dl .skmlm)3f 3zbid7d, uincreases, the pressure in the fluid

  Water flows through a pipe. The diameter of 4h9h* 30slajfw7mxw lq4fb w)the pipe at point B is larger than at point A. Wh)w04hw49*lflmbs haxw7q fj 3ere is the water pressure greatest?

  When you blow some air above a paper strip, the paper vuqanelf 51 pu*b3f47 rises. This is because

  A sky diver falls through the aiys axw:6i3 x-s g9 1ualkc)f,gr at terminal velocity. The force of air resistakuw9sgsl-x)1 :6 ay aic,xgf3nce on him is

  Two Styrofoam balls, of radii R and 2R, are released sim4fgoc . * wmym/(wnt ilo/),mnultaneously from a tall tower. Which will reach the ,y/o.f w*wo(mmm4ng)i t lnc/ground first?

  When a small spherical rock of radius r falls through water, it experi2x /uh4*ud pb3zdr8c kences a drag fxb8*kr d/3 hzpd4 2uucorce $F=arv$, 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 pipe? T yasu6f1wi16r n./khc hat is, if you made a 10% change 661.ykca hfur1s/wi n 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 eg: 0jp3jp84*wkf kn18vgdip twice the diameter of pipe A. Water undergoes vi0 88p4jgfv:kejp pi 31kg*wd nscous flow in both 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, b n7t7rl3rw,d qut pipe B is twice as long as pipe A. Water undergoes viscous flow in bot 7lwdrr,7qnt 3h 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 "greasy" taste seems to be dikvxai uhhkdg-/ rv859a/,) ass5ih/ ak d/vh8a, xu -vkri)g9dociated with oil spreading out all 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 height h. pt98os:vt d 0hIf the dios8tvhd :pt 90ameter were half as great, how high would the water rise?

  Certain insects, such as the water bug, are su4 1.,sy.6 r,a tzplnwektx1 ss:n4cczfficiently lightweight that they can run on top of water without breaking the surfasn:,6..1zr4z a4lp ,ksy csentwtc1xce 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 bugpn iqlr+om)g6ok9 6ok oor 24), are sufficiently lightweight that they can run on top of water without breaking the surface tension. This is possible because the water, due to surface teo o pgr)qi+ olmko9rko)4n66 2nsion, 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 dimension,s+/junqqv jp3/z/ nobg,u ,ts 2.00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. What is its ds/qb,q/t+v ung ,3z p /jj,ounensity?

  A liquid has a specific gravity of 0.357vcwf z i142jy:. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x um0h)- 7v h i qct8 2wj,xha/x.n4fgmyo*0l kf4.00 cm. What is the maximum pressure it can exert on a horizqlkgm87 h,vynh 0afcix -hjt/f. 4ow)mxu *20ontal surface?

  A person weighing 900 N is standing on snowshosc il;r;+*qj wes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand at a40x aslsg 4w0u depth of 120.0 m in tsguxa44 sw 00lhe ocean?

  A circular window of 30 cm diameter in a submarine can withstan9krf.p 0do+ftn-n ,wkd a maximum force of rf+on wkn.,0p9dtf - k$5.20 \times 10^{5} \; N$. 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 3005gmvrflzg :w0uh; 1 5wt)a 2fx kPa?

  What is the gauge pressure at a location 15.nv*x(1te5wn s.t6 nb , dbbn1xp;tdo:e(+vla0 m below the surface of sea? (The deb*not nex1(xbnpvtw lb+de 5,; 6td : s(1van.nsity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a locati r6wr0b8m wcah5r+-- saekan/o f6g4d on 15.0 m below the surface of sea? (The dr4n waeako6c-sam8+wd gr0 fh/65r b- ensity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machine. The sod6uq*l 2c +vkmall piston hal 2ou6 d+kqcv*s 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 of 5.0 cm andgu314c*vi9nr3*fbbe kc 7du f 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 ub ebi3ugck3d* n4f7rfc9v*1 20,000 N on the large piston?

  A 13,000 N vehicle is to be lifted b3hu2sd 48smboyoyu6t n4y)z5v. n a+ vy a 25 cm diameter hydraulic piston. What force needs to bso)hyuo 3nv s68+2 4 vdmuby zny4a5t.e applied 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 i 0mw q.: un(expda9rg,ts large piston has a diam0.:xn(wrdq a e9 pm,ugeter 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 in water. What is fxg ld dylo9 9k1lo*/+the buoyant force of the g x1o+ddokf9*ll 9/l ywater?

  An object has a volume ofi :kwh85l cvx) $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron a*yy)z3dp1m vbeg(x /biw /:tis supported by a string while submerged in water. What is the tension in the string? (The specific gravity of iron is 7.ezvpmwyy1/b/*xid:3) a t( bg86.)

  If the density of gold isfwj/m+,/ he -k q opxsh56;n7x6jb swj $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarine ;b1o 9lp p3gujv6d, sm(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 iepumpk(o 41+nc mdb6-sd 6 ib b:coy0/s immersed in water. yun 4 -6+okcse0bp(1 6cm/p:modbbid What is the specific gravity of the object?

  A container of water is placed on a scale, and the scalet( fbd*o7+js,g+ja nb reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from,s aj +7d+b*fn(jbogt 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.r+qkrvw ;i 8a 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 lengthx- s z(cpsa6:x 12 cm and diameter 2.0 cm will just barely float in water. What is 6:axx(-z pcss its mass?

  A rectangular box of negligw l)w+;tjodm2vo+ /3 2g.syl t,tvwed ible mass measures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loaded ontdtwe 2lt+ twm;wvoj. )lv/o,+23s dgyo 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 suexc9)frh +t 6 bxmk7l*rface of the water. The weight of the displhc+r7e tk*fm9bx6l x)aced water is 2000 N. What is the weight of the object?

  A solid object floats in water with three-fourths of its volumep6 pc-oh33gpu beneath the surface. What is the objecop g6c33-uh ppt's density?

  A 200-N object floats with three-fourths of its volumx j *z p1ro,a7sdw3b3ie beneath the surface of the water. What irpoad*7x z3w ib ,1sj3s the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What is thb9gz0cq lwo5c;l )a 0ve minimum area of the flocl 0gzw;vo5l)q9c0a b e 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 diameter 3 a gf-uil8ocj( bl0,f;l fn38u.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter pip 7m2:jp 8nl7dgubx;vbe at 1.0 m/s. There is a 2.0 cm diameter restriction in the line. What is the velocity in:udb2 mlg8nbp7j7 ; xv this restriction?

  Water flows at 12 m/s in a horibt wau vxsd4np44h3 /9zontal 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 pump to supply a drinking + qusyq-y 2o c f5uum; i0hegqmk(hi(j,8 sb1;fountain with 300 kPa, if the fountai0hibm5fsyeh m q 1qk(q-jo+;su2,(u ;iy 8gucn is 30.0 m above the pump?

  A hole of radius 1.0 mm0i3)icly(k;ua7s qm u occurs in the bottom of a water storage tank that holds water at a depth of 15 m. At what rate will water flow outa(c0mq);i lykus u73i of the hole?

  Water flows through a :fpn; ( /rgmpxvf:eje4/b*/g1mppiyhorizontal 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 )34ldegtmz w2h*c 88g+xmdm kviscosity 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 negle z + )*g2dk3xm4hewg8mcltd 8mct 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 decreasedo6y4o4ug xid .rrws2i) g,.fk the radius by 10%. By how much would the pressure provided by the heart have to be increased to maintai)kyx4doi. fr46i.s g,2 ogurwn a constant blood flow?

  Two narrow tubes are placed in a hi-k 5wpnfvq3 (:n5y qpan of water. Tube A has twice the diameter of tube B. If water rises 24 cm in tube A, how high will it rish 5w3nifqy q:5n-k( vpe in tube B?

  The surface tension of water is 0.073 N/m. Hyf3efy*8p h9e ow high will water rise in a capillary tube y 38hf9eyp ef*of diameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capillary tube c7js)age+ t-ewit+t) jcea7sg -eh a diameter of
0.50 mm?

  A narrow tube is placed vertici77n xi;gdi-hally 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 iihd7n;x7 gi-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 with 2(5rr(mpb;3qab jnc* ca2uwsa soap film formed within its confined area. If the surface tension of soapy water is 0.0260 N/m, how ar*m(c b23scb na;urq5 p2(jw much force does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 1exb8xfi9 wf 3ohh4+5yz 3l- 5qvxmf6 wjcon79 2 cm and width 5 cm, and is built in such a way that one of the longer sides can be moved without b 6 8h3 x 4wqyz xfb9+ec3wfmli 5j59x-ofhovn7ursting 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 cm square?