The three common phaia ibi e.2imd/;-q 0htpz rq6)s/n6tb ses of matter are

  Density is

  Substance A has a deoklwmfqq o. vg 627i85nsity of $3.0g/c{m}^3$ and substance B has a density of $4.0g/c{m}^3$. 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 presv s+f4 ct4pss2sure?

  Consider three drinking glasses. All three have the same area w7r9sqs s d +5yh.y6i1) zcvvbh* snl;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. Gla+ vd qzc*s );1s6.y9lw sysb57r nhihvss 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 pressuresjvt dmvsymsl7;- 8,/aq)jl jhi e-g1: inside and outside a tire called?

  When atmospheric pressure chan7wam s:gv :waag+ h,(cges, what happens to the absolute pressure at the bottom g s: amwc7,wga+ va:(hof a pool?

  You are originally 1.0 m beneath the surface of a pool. If you8 tn0mb(o9 rmn dive to 2.0 m beneath the surface, what happens to the absolute pressure on you? o9n(rbntm80 m

State Pascal's principle./latwl+ gpn3 0

State Archimedes' pri u 24f4u+pifgjnciple.

  $50c{m}^3$ of wood is floating on water, and $50c{m}^3$ of iron is totally submerged. Which has the greater buoyant force on it?

  As a rock sinks deeper and deeper in4xt3wz ks kagnc8:fmy d 44s((to water of constant density, what happens to the buoyant forsn8m4kw4d x kzt(ay g:3cf(4sce on it?

  Salt water has greater 422pk z2pk at5px4bnsdensity than fresh water. A boat floats in both fresh water an 42snk5t zpx2kp4b 2apd in salt water. Where is the buoyant force greater on the boat?

  Salt water is more dense than fresh water. A sg6o6 -lxtc, gwhip floats in both fresh water and salt water. Comp6, olt-g6w cxgared 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. Where is the p( q ( c9k+ /8haddkjjjj9ywt2buoyant (kcd9+ jtyh8/2pj(jdk jwa q9force on the ball greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kgf,.tiy qz3z +f piece of lead. Which has.3+f qtzzfy ,i the greater buoyant force on it?

  A piece of iron rests on top of a piece of wood floatq;e7byh0 9lv1shc4a cing in a bathtub. If the ir04yc a ;vh1sche7b9lqon is removed from the wood, what happens to the water level in the tub?

  A piece of wood is floating in a bathtub. A second piece b h: ,-to. bn--nj7vjphn2 trdof wood sits on top of the first piece,.tpho: vd7n jb-hjnb- ,n-2t r and does not touch the 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 of the pipe at point B is larger than 0b,:( b nmhfzpvbe8na(nk*f8 at point A. Where is the speed of the wate(e fkna 8fbbp z (hmb:0n8v*n,r greater?

  An ideal fluid flows at 127vpm7; zh mst; m/s in a horizontal pipe. If the pipe widens to twice its original radius,h; mtp;sz7v7m what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. Ifmfcap;:)wp :jkgc0 7x the pipe narrows to half its original radius, what is the flow speed in;cw ckjx:f)p a7:p 0mg the narrower section?

State Bernoulli's princi-dz/ : / c5io)ed:w psbt+ dljogo7.iae1 lu:iple.

  Which one of the following is associated with the u8 5r/pvqu xwh,b eaf2h9w0+u law of conservation of energy in fl 29 phwuf, vux0qu5+wbr/8 aheuids?

  As the speed of a moving fluid increases, the prj l6xw4p61i 8ov 0m nqsp69flzessure in the fluid

  Water flows through a pipe. ba 6ux 3du+8vm The diameter of the pipe at point B is larger than at point A. Where is tu8ud3am6x+v b he water pressure greatest?

  When you blow some air above a paper strip, the paper qvyhf/x9*5ma(2u t/no4kts grises. This is because

  A sky diver falls through the airwan;0;r / 2ehvfml0cs at terminal velocity. The force of air resistance on him rhf2snv00aew/; mlc ;is

  Two Styrofoam balls, of radii R and 2R, are released simultaneously fro8-weez.g9ja6m 4vwl5nu(u9tnli: 3p ke + vfsm a tall towew8njuiegtl5+ f 69 nwv9:4 3lsma vu p.zk-e(er. Which will reach the ground first?

  When a small spherical rock of raombq;m tr 1x 3q6x+gfv4na /s6dius r falls through water, it experiences a drag forceqbg;1 m/xq6x6 ao3m r4tv fsn+ $F=arv$, 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 thr jai9c(4(r uooough a narrow pipe? That is, if you made a 10% change in each of the quantities below, which would ca(roioj4acu9( use the greatest change in the flow rate?

  Two horizontal pipes are the sameqdr 4lo3,bxp* 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 pipe A is Q, what is the flod q*p3orlb4x ,w rate in pipe B?

  Two horizontal pipes have the same diameter, but pipe B is twicavgh 1 (a. b:zhr.;hkgfs5 y:re as long as pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure di:s ggkryvh h1bar (f;az. h:5.fference 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 seu9lhl2uc,qrdp/ -4 g* wh: iucems 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 explaini rl/2duc,c* u-h lqh4 9gpwu:ed in terms of

  When a tube of diameter d is placed invi/o7kfi k/gjvls c 1:o6d+g; water, the water rises to a height h. If the diameter were half as grea6cgjskdkvgof/1 oiv/ :7; il+t, how high would the water rise?

  Certain insects, such as the water bug, are sufficiently lightweight ,jv/im7.cjg6ig wdu;66hy h x 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 dimensions66 g gh;7y6,vi uixdj/.whmcj. 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 sufficic *c dmm)07mxg6rywz2ently lightweight that 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 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 gz)w60rmmxdcyc m7*2 upward force on the feet of bug B?

  A plastic block of dimensio1so la* (fwz7yygkoai ;wl -37ns 2.00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. What is its de asw* z1l(7o7k 3gfoly y-a;winsity?

  A liquid has a specific gravity of 0.357. What is its densi9i .znzgo r8n0ty?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm. What is +obo to 2d.d n15pyzv,the maximum pressure it can exert on a bv 2dp1y+tz.ndoo5 ,o horizontal surface?

  A person weighing 900 N is stzyem:3 c(7+cdqr ,iex anding on snowshoes. Each snowshoe has area $2500c{m}^2$. What is the pressure on the snow?

  How much pressure (absolute) must a sn33wcq vv*k( oubmarine withstand at a depth of 120.0 m in the ocean?v3kvc(n3*o qw

  A circular window of 30 cm diameter in a lj-79t- 5.w ziww3gtmossrq 5b2 ntp; submarine can withstand a maximum force of .qzr9l ws-o nwtp2i;5s bw35gjt-m7t$5.20\times {10}^{5}N$. What is the maximum depth in a lake to which the submarine can go without damaging the window?

  What is the gauge pressure if thev:61/yyg / mftnuqu8 n absolute pressure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below the sur(e -hk6 -*uuzk hffzecq.)m 3vface of sea? (The density of h(fc)zz- he6f*.kmqkev -u3u seawater is $1.03\times {10}^{3}kg/m^3$.)

  What is the absolute pressure at a location 15.0 m below the surface of sea? (Tlgs 4 uxf+v4a8he de + l8vgfax4u4snsity of seawater is $1.03\times {10}^{3}kg/m^3$.)

  A 500-N weight sits on the small piston of a egatr0*h y )0p0kw6kp hydraulic machine. The small piston has rwg 0ah0e0tp)k k p*6yarea $2.0c{m}^2$. If the large piston has area $40c{m}^2$, how much weight can the large piston support?

  In a hydraulic garage lift, the small piston has a radius of 5.0 cm and the largxzc:30 bi1g ea5nhfy7g z6gs,e piston has a radius of 15 cmn agbz5 gh6,z3c:ifsx01ey g7. 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 bhe ghe0cwuni:6b )pla8*wx 6 5y a 25 cm diameter hydraulic piston. What force needs to be applie06en whihxc:l b6w 5e gp*8ua)d 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 large pp,rgd+(v-w( 0yeied siston has a diameter wg,y-(rd0p(ds +eeviof 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 w c ztnb dmk46yc()oyzjg/;59 tater. What is the buoyant force of the/tmy g9 bkd; cjctyz6 4n)o5z( water?

  An object has a volume9 ik;,m/kurmfsf.(zzvv z2.b of $4.0m^3$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is supporte t9 lds 11d1u j*x p3yd9cld7gwdjo-6pd by a string while submerged in water. What is the tension in the string? (The specifi dpdwucltd9s 1x-1 yog*jjd16l73 dp9c gravity of iron is 7.86.)

  If the density of gold i1 )w3k,8eojjdi48fy8q xp3vld. iy lys $19.3\times {10}^{3}kg/m^3$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel su, dlmfchttih2p77.f joqj ..2bmarine (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 is immersty*n)m:62aw- eybkna ,o -mfqrti,ju2md1: hed in water. What is the specitw) 2rnay1y-odum2m: mqk,hi f6e:,-tban*jfic gravity of the object?

  A container of water is placed on a scale, and the scale reads 1r8xf6;y+mbtp -okeu /9h xi8u20 g. Now a 20-g piece of coppee+b9yxr k/8o;-xf6tu8 hiump r (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 ky:epx5ul *ehbi3 q)m12zxhf) -2kndgg and density of $2700kg/m^3$ is suspended from a string and then completely immersed in a container of water. The density of water is $1000kg/m^3$.
(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 flk 8,ujr ;z/lcg9bx qa-mltq59oat in water. lq-g 5 9q,tz 8blxc9ram;kj/u What is its mass?

  A rectangular box of negligible malr1r* b8 ksxq0ss measures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be load sb1rrk08 l*qxed onto the box before it sinks in a lake?

  A $1.0m^3$ 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 w/ rlsq: ,hv:)mg+c/2.iw qv-wlgofp u eight of the displaced water i:wl: c g2vsp+oi-/,l) qu/r.gqmh vfws 2000 N. What is the weight of the object?

  A solid object floats in water with three-fourths of ih , o-(fzar- lsdoc)m7not6( tts volume beneath the surface. What is the )a(zocn7 s6f, (o-mroh dtlt-object's density?

  A 200-N object floats with three-fourths of its volume bu smz;pp7k39: y r 1.neakuqp)eneath the surface of the water. What is the bukpuqa913 semyrp;p :.k zn)u7oyant force on the object?

  A polar bear of mass 200 ksb 4vx9 h3.dhi :ncy2 u)gcxl)g stands on an ice floe 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 gravx:c)h2hlgy c)4xuv 3i .bd 9snity of ice is 0.98.

  Liquid flows through a pipe of diameter 3.0 cm at 2.0 m/s.c;isc*v. vp8olttp1*x,x+ ic Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.agls0nw) y 2h,2 4eqbl0 m/s. There is a 2.0 cm diameter restriction in the line. What is bw2q4)yhsl nel,0a2 gthe velocity in this restriction?

  Water flows at 12 m/s in a horizontal p rn79oh(0 xsrwipe 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 forhpgzr :3/(xpe7mg4 xysuzf ,) a pump to supply a drinking fountain with 300 kPa, if the fountain is 30.0 m abov,p34 ph u)sz7:emgxrx/z(ygfe the pump?

  A hole of radius 1.0 mm occurs u2n. 1.hr flltin the bottom of a water storage tank that holds water at a depth of 15 m. At what rate will water flow out rl u1 2l.h.tnfof the hole?

  Water flows through a hori+f6tov ;:r( yeyij*hizontal pipe of cross-sectional area $10.0c{m}^2$ 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 $5.00c{m}^2$. What is the pressure at the valve?

  SAE No. 10 oil has a viscosith9*ugiql syaz6;hi uvip;- 7 *y 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 * *u-9 hh;6igpulaiqvsy7; zioil 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 faqbo73725aea7l7n of v/mgweyt kbb 7+tty tissue on the wall of an artery decreased the radius by 10%. By how much would te3gqb y/t lw27 onk77ba vf77 e+b5aomhe pressure provided by the heart have to be increased to maintain a constant blood flow?

  Two narrow tubes are mnn+2 jwar nvhh-3; ,n i1gwo2placed in a pan of water. Tube A has twice the diameter of tube B. If water rises 24 cm in tube A,nhi2r +a-m nnhj w;2n wv31g,o how high will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will water rise in a caea:cv-khuk9p h67n a4 le5ph*pillak6nv 9e*ca7kphl h5 -auh:4e pry tube of diameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capi dj1 afqu gxi11ys2z9+llary tube with a diameteuf91qgadiy2 1jsz 1+xr of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and the water rises in802 bw1az srku the tube to 4.0 cm above the level of the pan. The suru1k2 zasr w08bface 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 0.12/6g ax ;lgtz5m6f .ge:rmk7al0 m and width 0.600 m with a soap film formed am6l6lxa5r7 ;ftk.gmgz/eg: within its confined area. If the surface tension of soapy water is 0.0260 N/m, how much force does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cww96 y4krpjb y eo bqp;pw7ba,9g59v1m 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 surfaceebpybr9yq9wwo 56wa ,47; b vpkgp91j tension 0.026 N/m. How much work is required to move the adjustable long side so that the frame is 12 cm square?