The three common phases of matter are5s3sa 0aanm-d

  Density is

  Substance A has a density6-(v lxvegu0m+x1j* t t-fzb w 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 pressu82phtvsn9yj q u)4n pax:8.nxre?

  Consider three drinking dw xg1.iw;( v6hpe1 ) vyfhzlo/9 -tzeglasses. All 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 ate d;igpz-w/ho.vl9(t 1hxvyfe)6wz 1 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 the bottom?

  What is the difference between the pressureswxuw6a*5ljftq i ly2(+ 8dm/ c inside and outside a tire called?

  When atmospheric pressure changes, what happens to thpdaan8 2 ugq ,26fsd0 (,kyaaye absolute pressure at the bottom of,pq6k (ynu,aa8aa0 y d2df2gs a pool?

  You are originally 1.0 m beneath the surface of a pool. 4d53 d1ogk (j qey4yjr If you dive to 2.0 m beneath the surface, what happens to the absolute ygrj kq odd4j3 e4y(15pressure on you?

State Pascal's princip zh,w oi,i78p)gfvg i/le.

State Archimedes' princmx 4lblub7*il:i++as 0ng1zmiple.

  $50 \; cm^{3}$ 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 deeper inoxye ah*;/a8p to water of constant density, what happens to the buoyant force/8;x* paaeh oy on it?

  Salt water has greater density than fdwo 8 / ajyyp(3ge2)e:) zemysresh water. A boat floats in both fresh water and in salt water. Where is the buoyant force grea) mwe do(p/esyg y2e:83 jza)yter on the boat?

  Salt water is more dense than fresh water. A ship floats in bokjpp8h+: 8zil th fresh water and salt water. Compare:+ zi8pk 8lhpjd 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.cy bzmo8on,s+ q98 sr2l*uo vo03elu. Where is the buoyant forcs83nylovbu +.0zco o eo*,2 lsmq98 rue on the ball greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, righti+a.zx 3n(n qovu3 rxjm)o,8 f next to a 10-kg piece of leaui +rq3 f)m(x,nnov3aj.ozx8 d. Which has the greater buoyant force on it?

  A piece of iron rests on top of a piece of wood floating ae q j1d zh(:tgvd+v;;in a bathtub. If the iron is removed from thqtdz+ e;d1vg;(v:ajhe wood, what happens to the water level in the tub?

  A piece of wood is floating in a bathtub. A second piece of wood: ;vzwxfnw7veavn6rwy *i2s5-1wj5p sits on top of the first piece, and does not touch t: v6wy va r;nf5iejwsv52z17p*-nxw whe 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. t4jbnry2oa e.t19x 4hThe diameter of the pipe at point B is larger than at point A. Where is th2eb .rxo14hy4atn9 j te speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe widens to twiew* - 6,hsicmsce its original radius, what is tci -,6swe*hmshe flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narrows to halfi+,p t9;cb om: j 8jdjpi9wx1b its original radius, what i9md :9 c8jjibw1,ipb;o t xj+ps the flow speed in the narrower section?

State Bernoulli's princivwziqb6,t/hfi9zq+8n qi3 ps llrz7 c*53dk )ple.

  Which one of the following is associated with the law of conservation ofb3 7mguj: m2t.4pbcfc energy in fc7bmgf3um j b2 .:ct4pluids?

  As the speed of a moving fluid increwin2 1ttx z5;nases, the pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at point B irn 2 r1+ )ikg.evz ,3yqgr/bzps larger than at point A. Where is the water pressu 3e) nr. r,/bpzi2g1yvqg+zrk re greatest?

  When you blow some air aboh 1ckt1 5qn* 2ujd 7u/sg4xzlwve a paper strip, the paper rises. This is because

  A sky diver falls through the+ ;nmw894xd(sjl /p btccn xm8;nyvk4 air at terminal velocity. The force of air resistance o;+j vdcw;ncs88mk4x 9 txpnb4(m yn l/n him is

  Two Styrofoam balls, of radii R and 2R, are released simultaneously from a ta,op tnj (wq t23sv.t;oll tower. Wh stq o2p v;.wo(n,tj3tich will reach the ground first?

  When a small spherical rock of radius r falls through wat-ym)wb u( y)xrer, it experiences a drag forc)rb mu(- w)yyxe $F=arv$, 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 nayp,0znq-;w9 gnju l* ru5h6n krrow pipe? That is, if you made a 10% change in each of the quantities below, which wou0,yh lp-n* u5j9nnqz g;r6wkuld cause the greatest change in the flow rate?

  Two horizontal pipes are the (kq j28)k)rbknpm ds5 same length, but pipe B has twice the diameter of pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure bm 8 kr(nk2)jqpdsk)5difference 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, but pipe B is twice as long as pipe/s h l;* y4wdabbz8)0eqsqz v6 A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the lengths of the pipes. If the floba)ydwh84b*6sv/zqe s;zlq 0 w rate in pipe B is Q, what is the flow rate in pipe A?

  When soup gets cold, it often tastes greasy. This "greasy"wsnbh) y v7e;4 taste seems to be associated with oil spreading out all over the surface of the soup, instead of staying in little globules. To hs4;nb w7y)e vus "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. ryb1rx fy 2)rlha87*szhwa. 1vay8x+ If the diameter were half. brwa)xzha18vy rl 2x+ yrhy8*7 asf1 as great, how high would the water rise?

  Certain insects, such as t. i ym z5lvh63+ll4)kiku*y pqhe water bug, are sufficiently lightweight that they can run on top of water without breaking the surface tension. Water bug A has weight W. Wateyz +3kmivyul6)i*4.lqp k h5l r 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 sufficiently lightweig3q: :wxmpl:g0mdn nl6j..barht that they can run on top of water without breakindg:.mnjbm3prl0 w:n lx qa :.6g 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 has0i-rea t q*c+zv +s4ds a mass of 30.0 g. What is its den+sdtq4es0rza v +*-ic sity?

  A liquid has a specific gravity of ,zn7 slln;p2q+f e3cr0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm. What l,7ewe /j o/ja(zzsa8is the maximum pressure it can j/ z8(,o7aaez ljse/wexert on a horizontal surface?

  A person weighing 900 N is standing on snohh1mzpc193av.xm zp 2;l2r yr wshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolutzs9re34ucmgna- tly ,4( d.a qe) must a submarine withstand at a depth of 120.0 m in ta uczal gy se,n(4r9m-3.qt4dhe ocean?

  A circular window of 30 oh:noev z-3;riv+g a( cm diameter in a submarine can withstand a maximum force of i+ zn ohg(a3r-;ovve: $5.20 \times 10^{5} \; N$. 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 3 *1ar8hai0 zix;ds3j w00 kPa?

  What is the gauge pressure at a lo o: :t vxni*tqia 0b;vsl*n+u *w58vhccation 15.0 m below the surface of sea? (The density of seawatevwv u : 8bxo5 ;:+ a*v*tnqistcnhli0*r is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m bela/:mc sug+y/ qow the surface of sea? (The g usq/cy/ma:+density of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the smjl, xrl+z/va wzz8 /e*4e(rghall piston of a hydraulic machine. The small piston glej,8 +hexrr/ lw z/ zva4(z*has 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 pist* .ar(h c8eukaon has a radius of 5.0 cm and the large piston has a radius of 15 cm. Whak8*e(huca r.at 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 diamete- ))elfr 9k b8h8ewsnsr hydraulic piston. What force needs to 8rf8l )e -neh k)s9bwsbe applied to a 5.0 cm diameter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter of 8.0vb p i+iv9s x*0.91gkzsxe d)j cm, and its large piston hais v+gb)v ejz9 isxpd0.19xk*s 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 in water. What is the b3kac255h wjz fie,sqt)y3 6dbuoyant force of the water?ai jkc s5tyzfh eqd)3,w3652b

  An object has a volume / lt50(jmfqm dngc.9u of $4.0 \; m^{3}$ 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 submergedg:mdo6o x y-yad b+1a9 in wat:xoy-bo9 dg+1d6 aay mer. What is the tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gold is jtiyad 8p(g96 $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarine (/so g7 e1krvk4density = $7.8 \times 10^3 \; kg/m^{3}$) 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 aw+y3 .(qen 9hsf07; (dt.fqqq n mgqlit is immersed in water. What is the specific gra+qnewy(d3fq;h0f l.qgq asnt 79q (m .vity of the object?

  A container of water is placed on a scale, and the s-o/; lukk -mctcale reads 120 g. Now a 20-g piec/-tl;mu o-kk ce of copper (specific gravity = 8.9) 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 mass of 1.0 kg and density v 79ybr9 l a0:3iqnc/i9 q 2jmx+aseapof $2700 \; kg/m^{3}$ 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 ud u*0m(og.7 yeugf lg1v,xf5length 12 cm and diameter 2.0 cm will just barely float in water. What ,1um5e0 vx.d *(gf7 goylgfuuis its mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0 m wide, and 0.50 mhni(49ijb :)ze edy)c high. How many kilograms of mass can be lo y(ih4c):b e9dnez )jiaded 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 it) 3o jcwp.u ) jqobj0:.,-xvpfyq:zkls volume beneath the surface of the water. The weight of the displaced water is 2000 N. What is the weight lpkpyjq). xwz-:vc ouo.b,: 0 )j f3jqof the object?

  A solid object floats in water with three-fourths of its volume beneathd mp9 z/a6j5e nzw2h9p the surface. What isd6whpjm eaz25 9p/n z9 the object's density?

  A 200-N object floats -b9pre6yu,t6c vej n5l:uyg *bp/o(w with three-fourths of its volume beneath the surface of the water. What is the buoyant for utv( cy6,wp-er5yp*blo/nj9bg u6 e:ce on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What is the mine nlxj,in 40k3,tux*d*.i k 1e.sho yjmgtz6 8imum area of the floe that will just support m , t jx3gdyike t0.n jo*1zk*hx4,eul8n.s6ithe bear in saltwater of specific gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pipe oqauem0s z 7-+)h-ju dyf diameter 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1rs t95 97nlpag5* 3yu yw4ryjs.0 m/s. There is a 2.0 cm diameyr4ltsj9s9 7wr5 pu*g 3ay5ynter restriction in the line. What is the velocity in this restriction?

  Water flows at 12 m/s in a horiz/3 ts2;mdzka lu3ib/x ontal 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 ip;f n6/ 9r-rlrz bez2it take for a pump to supply a drinking fountain with 300 kPa, if tr 9f/r6lbz2; i er-znphe fountain is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of a water stot9h /jo41h ivtgu3x 3wrage tank that holds water at a depth of 15 m. Ax91 t/j34 oigvh wut3ht what rate will water flow out of the hole?

  Water flows through a hori6zqhx 2g9jphy h8a8 p*zontal 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 ox5r f bkiw)0nh yfyg3 ,x3;3ksygvu0-f 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 ofy-swi00 fknx3hkf33)vy,; bx 5 ygrg u 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 fatty tissue on the wall of an ary;t 7e5)myh lbga-v*gw aev6/tery decreased the radius by 10%. By 5 /g;ty emav)6-bg avly*7 hewhow much would the pressure provided by the heart have to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of water. Tube A aj 5e.8 0urlzlhas twice the diameter of tube B. If water rises 24 cm in tube A, how high will it rise inzu50ljl e r8.a tube B?

  The surface tension of watepd 2 +;puw /pflc*(gear is 0.073 N/m. How high will water rise in a capillary tube of diameter 1.gp(ldf2 ;/+ae p*p uwc2 mm?

  232

  To what height would water agt8fe8m ;r*rat 0 degree Celsius rise in a glass capillary tube with a diameft8e *mrr8 ag;ter of
0.50 mm?

  A narrow tube is placed vertically in a pa nfm*e-90 lehw1v:poln 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 original value by the addition of some soap. Wv9fnmpolle10 -:ew* hhat happens to the height of the liquid column in the tube?

  Consider a rectangular frame of length 0.120 m and width 0.600 6) w/kqne ajrnu)0;vyq7sql)f4b5 mz m with a soap film formed within its confined area. If the surface tension of soapy water is 0.0260 N/m, how much fba y)q/;q)l5 )47ns j qun0z6f wmkrveorce does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has le-ln( y m voqtokv3-+;rngth 12 cm 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 the frame. Soapy water has surface tension 0.026 N/m. How much work is required to move the adjustable long side so that therloo -kvv+mt 3;qy(n- frame is 12 cm square?