The three common phases of matter g97;2wclq2p 0u amvh +jmm k;hare

  Density is

  Substance A has a den goes( rm2-a8teqi4j lg,k*t 4sity 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 un1fd .fk:xos xab,o7q6 it of pressure?

  Consider three drinking glasses. All 0i)bgr:2 i4dkn f6eta 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 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 liquig )ti 6e2dn4 bfki:a0rd pressure at the bottom?

  What is the differenceumm-l z86)eb hq j.eb5 between the pressures inside and outside a tire called?

  When atmospheric pressure changes, what happens to the absolute,n;6l y vcbs)x pressure at the bottom ofvc;x,snbl y6) a pool?

  You are originally 1.0 m beneath th )noi l;ib3c4je surface of a pool. If you dive to 2.0 m beneath the surface, what happens to the absolute press4o;lnc ii) b3jure on you?

State Pascal's principqtzok/.xn- xgtd3.wl6e o9 e3t8zx3ile.

State Archimedes' prn qp/ j+ d5)(8ksgwwsninciple.

  $50 \; cm^{3}$ 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 into water of;li 8rsd-dk5c constant density, what happens to the buoyant force on it; isrdlk- c85d?

  Salt water has greater density than fresh water. A boat floats in both fresh z2x e,d mfgo4tjnk+33 water and in salt water. Wherej zegmo3, d24tnxf+ k3 is the buoyant force greater on the boat?

  Salt water is more dense ),tkfs wfd1: sthan fresh water. A ship floats in both fresh water and1,s fst: kw)fd salt 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. Wh8 af v4b6t6ufrere is the buoyant force on the ball gf 6vbfu64a8 trreater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right nexthl/.ejm wt;r977oy xpe ,rx7s to a 10-kg piece of 9j/ yeolr 7wx,x;st7phem 7r. lead. Which has the greater buoyant force on it?

  A piece of iron rests on top of a piece of wood floating in qkew3(l v h1y6 xhyo)*a bathtub. If the iron is removed from thek *1 )y ewvhhqlox63y( wood, what happens to the water level in the tub?

  A piece of wood is floating in a bathp/, pm je-b* 9iptf+yd/shi 4ntub. A second piece of wood sits on top of the first piece, and does not touch the y4,9d+eb*iji fp/tn /sh- ppmwater. 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 diufx 9u*yhl6 lo:9hr egf,,jrn9f5f2e 9j-ah oameter of the pipe at point B is larger than at point A. Where is the speed of the water greatr9 ne-u,ygu r,fah92o:l6xh*f9 lff j9j5o eher?

  An ideal fluid flows at 12 m thaz01-w.za+ji( zq1vvqe (k/s in a horizontal pipe. If the pipe widens to twice its original radius, what is the 1t jz0qaa w .v-ez1zvkqi+(h(flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. Idf5dq) -td7 -wdm2rpt f the pipe narrows to half its original radr t2ddq dmd--f7tw)p5ius, what is the flow speed in the narrower section?

State Bernoulli's princizhdw .7mxk)y-s fqcn.9 g,e 8rple.

  Which one of the following is associated with the law of conservation2n9 y fewp5.y::kr1 esb1ruf a of energy :b ep1kaurf 9n2f5w:s ye1yr.in fluids?

  As the speed of a moving fluid increasb3kcx-e/gd .n .hu-mtw z+0 qses, the pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at point B is0b hduwk/x3 7fg8c( 3samnff1 yjr4c2 larger than nafg h wfxcmc70k3jsr8b3(y4fu/1d 2at point A. Where is the water pressure greatest?

  When you blow some air above a paper strip, the papqm4v h( .9kn++zen2aecrv4n per rises. This is because

  A sky diver falls through the air at terminal velocity..q9rsv-/ +g;tavgo( kq(vpsi The force of air resistan9 vqakq svg/.+psv-t(i r;o(gce on him is

  Two Styrofoam balls, of radii R ea l 4np)m8y8rand 2R, are released simultaneously from a tall tower. Which w r8e lapn4y)m8ill reach the ground first?

  When a small spherical rock of radius r falls through water, ikem 5za- fl,frh+k :1yt experiences a drag forcy k1f,+h-mez5rl :akf e $F=arv$, 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 9 f lc mf52lwqxl4).rethe flow of fluid through a narrow pipe? That is, if you made a 10% change in each of the quantitiesxmc 42q9)fflw ler.l 5 below, which would cause the greatest change in the flow rate?

  Two horizontal pipes are theysdav i :00ym5*s: met same 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 t*a5ymm:: vi0t 0 sedyshe pipes. If the flow rate in pipe A is Q, what is the flow rate in pipe B?

  Two horizontal pipes have the sa j6-jj j yqe021re8gjs)i. zotme diameter, but pipe B is twice as long as pipe A. Water undergoes viscous flow in s)gz-jjyo6q18jj0 re. i2t j eboth 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 tasteswjffi us15zj e d0y4;) 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. To us "physikers", this is readily ef5yw10ie4 uj zf)s;jd xplained in terms of

  When a tube of diameter d is placed inxda7.zk -wt*skd i2ip,1 :dht water, the water rises to a height h. If the diameter were half as great, how hig kdxizh7:wtpd.i ,ta-1k d*2sh would the water rise?

  Certain insects, such as the water bugfgk . ,j4omxx8, 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, xjk,.4 8gfxom 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 lightweight th 0l2y)oic*gv6j w9pv)*bs re hat 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. Suppose that the maximum possible upward force on the feet orv*0g ilojbh96*)2evy sc)wp f 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 co70ev2lp7(0d bxo5dd +dibo- lznr( wm x 4.00 cm has a mass of 30.0 g. Wha5-b7xl 7 nlpo(i+w d20d obzd0rov(ed t is its density?

  A liquid has a specific gravity of z47n)ms(rln8,2hisgz8 wax m0.357. What is its density?

  A brick weighs 50.0 N, and measures 3ijai+ e1pnofp)bj uqr , z)4et5pk0+0 0.0 cm x 10.0 cm x 4.00 cm. What is the maximum pressure it can exert on a )0 +e equ pip0o5i1nrfjbk,a +t)4z jphorizontal surface?

  A person weighing 900 N y3zj3bzwfe.z7w z si a48 +bi.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 withstandu,vsld.i r(2 x at a depth of 120.0 m in t,s2lui.rdx v(he ocean?

  A circular window of 30 cm diameter 7syf(vgaq w8 ()sr8 mkin a submarine can withstand a maximum force of (g sw8kfy(s7m)8rvaq $5.20 \times 10^{5} \; N$. 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 abs0ul1j bj pf6 lz-vjk9 ,uvjt-58pf2o0.e lzo zolute pressure is 300 kPa?

  What is the gauge pressure at a location (j1;i jxaz7aioa;i 2slte 9 o815.0 m below the surface of sea? (The density of seawater7ij 9a1l ;2o (jzosaiixe t;8a is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a l-guo7ga cz/ t4*qdgf b-)uko3ocation 15.0 m below the surface of sea? (The density of seawate/fg3ugcto dza-)q *bo4 u7gk-r is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of i.un a (9ue*rra hydraulic machine. The small piston ha*9 iur.ean u(rs 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 and thh6w*7 9giaaxce large p6ic9w*g a7ahxiston 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 large piston?

  A 13,000 N vehicle is to r.crfb5t2ekuh90qi4 be lifted by a 25 cm diameter hydraulic piston. What force needs to be appli9q k u0fbc4h rt2e.5ried 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 its lcq/n 8.jd jsh35 *;qnj,v dnrharge piston has a diameter of 40 cm. The lift raiseqddnns*jc8; qj 5h/ r,3njv.hs 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 4ep ;apko+e. kut7rj/2 0 N in air and 30 N in water. What is the buoyant force of the wateruej2p7 o ./k +;tkprea?

  An object has a volume 2 upfbx 74; rhdevj3l4fxzz.9of $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is supported by* h,wbxy bc*0h4i c(jn a string while submerged in water. What is th xi*b4bc,h0 nwch (*jye tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gold h+n/ ya+mgls0o z5vpo2e g)o1is $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel c.di*d) cuwt -submarine (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 isdwm-v7wdw.b- immersed in water. What is twd-b-.mwwd7v he specific gravity of the object?

  A container of water is placed on a scale, and the u7 il3rreow g5 pz,b4str,1 1escale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and lowered into egp75 143us,it erbr1ro,zlw 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 (f c3jsk8pc-k 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 baz s31)j fadb qvm(6-bpm(lhu9 rely float in water. What is i9 lz1(b)afj3v6-mpd (q bsm uhts mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0 m bu6hgn+ + pulv*p 00ez9 rgt.nwide, and 0.50 m high. How many kilograms of mass can be loaded ont . p0n*t+vgunguebl0 +69rh pzo 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 benvi)o7 f3 d )-t2:sbgbib kj s/v)9txa+pjav2p eath the surface of the water. The weight of the displaced water is 2000 N. What is the weight of theab2bp iv:-3 9a/jgvtk+)d) )xsfo vip 2t7jbs object?

  A solid object floats in water with three-fourths of its volume beneath the surfg0jm gsnr(24 vx./k e9wwoh3y1w k+*8apw lmwacwm 0(w2vsyw9h3 kjx4or1wn pmga.e*w/+g k 8le. What is the object's density?

  A 200-N object floats with three-fourths of its volume beneath the sunx 1g su1k3:bvkj) j.w*ac0sqrface of the water. What is the buoyant force on vsxj)nu3j sg.*qkb 0:1kac1w the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What isdze/4 l3rlnr- w82hq*zw6 rj *jlohl9 the minimum area of the floe that will just support the bear in saltwater of specific gravity 1.03? The specific gravity of ice is 0.98.3jrll qw9z*62*l w4rhhn zo/rd-e8jl

  Liquid flows through a pipe of diameter 3.0 cm at 2.0 m/s. Find the flow rateuxe- 1ney1z +h.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. There is a (qd/ c7o-4or nv)-mv)er fzwc2.0 cm diameter restriction in the line. What is the velocity in t4n/ 7-m)rcvc- ) qw(ozvefodrhis restriction?

  Water flows at 12 m/s in a horizontal pipe with ow rky u;ku4gmziev(1/ * 3xi6a 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 su:/hq(+cj*fukd9 pvg h80vcbp69ohwa) v . pkppply a drinking fountain with 300 kPa, if the fountain is 30.0 m abov vub c (c)w9 hj/p fg:hk+kdpv98oahq60 pp*.ve the pump?

  A hole of radius 1.0 q)hh2g,qk yo) mm occurs in the bottom of a water storage tank that holds water at a depth of 1hyq h2o)gk,q )5 m. At what rate will water flow out of the hole?

  Water flows through an( p 5q g6(ztb fw6mr(09zoqup horizontal 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 lone;ggc;wgf) /wg 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 neglect any drag effectsww fc;)gg g;/e due to the upper part of the funnel.

  Suppose that the build-up of fatty tissue on the wavye:4,79i ra;6wyqg nm/0r he ow.bqpa3n ll*ll of an artery decreased the radius by 10%. By how much would the pressure provided by the heart have to pq0ra he9 vq476; a*elr/gnby i.lm,nowy3w:be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of water. Tube A has twice ci: k31p n x zf91(fgq. ;ju+sls*elovthe diameter of tube B. If water rises 24 cm in tube A, howien:.z (q ol jpfkxvg93;u 1ls* f1c+s high will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will water rise in buv malg qlya2gf 6 0)p+;j42ea capillary tube of diameter 1.ga4b;2va j)pe ymf+llu 0 6qg22 mm?

  232

  To what height would wa7 kw w)hkb(tb3ter at 0 degree Celsius rise in a glass capillary tube with a d)h3ktbkb w 7w(iameter of
0.50 mm?

  A narrow tube is placed verte1ar lu7)y * wj60wfady.ve6g ically 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 original value by the addition of some soap. Whatayj6ade. * )v1wufglrew 706y happens to the height of the liquid column in the tube?

  Consider a rectangular frame of l c6n,nt+ ,l5ye.sbvvg ength 0.120 m 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 much force does the soap film exer bg +.5ln6ytc ,vves,nt on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and width 5 o, /mnj+xi4r0h+div o cm, and is built inind04oxo jmih+v/+r , 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 cm square?