The three common phases c5r fra 61nj21c +pgknof matter are

  Density is

  Substance A has a density of w bsrqhus,s6 j1408fm$3.0 \; g/cm^{3}$ 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 pressc9af2whgio dk*w d5 4+ure?

  Consider three drinking glasses. All three have the same areavjnnwkv7y2 )hqqw9-c /w0:xgx s 6b/e 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 bottw/ weyn - s20/ ncqv:bx9)7xkwqh6gvjom, 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 outside a tire calledo g:ecul3kr2 0?

  When atmospheric pressure changeszft5q ow1ym )n/ 6t4qnu*j+eis7( dwq, what happens to the absolute pressure at the bottom of a n4ujiq+n)6*mw/(t7 5yedozq tf1w q spool?

  You are originally 1.0 m beneath the surfac+o(+jvs;7; ,jsy yyqxl dtr4 w 1j8olxe of a pool. If you dive to 2.0 m beneath the surfsylo s j;yj 41o7x;(+dljxv,+qryt8wace, what happens to the absolute pressure on you?

State Pascal's principwx6z- m o8l3k40tn mdple.

State Archimedes' princi:ug0h 5vf6x1w azmlz 8ple.

  $50 \; cm^{3}$ 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 constant density, wp1;rrx2:hfk),ynp c1/qtm vu hat happens to the buoyant force on iu c:pp) r/tyx1,fhnk1;2mv rqt?

  Salt water has greater density than fresh water. A boat floats ixp onm8 5dcoybd+)n::n both fresh water and in salt waternm:p o:8bn x5 y+odcd). Where is the buoyant force greater on the boat?

  Salt water is more dense than fresh water. A ship floats in pwdbw (q 0.r*mwn*)khboth fresh water and salt water. Compared to the fresh water, the volume of water d*h0d *b.wwm kr(pn)w qisplaced in the salt water is

  A steel ball sinks in water but floats in a pool of mercury. Where is thrgze 1)n:pcd *;t:dl x2 be)jye buoyant force on the ball greater?;z)nrg d*jx1 b c:t)2epdel:y

  A 10-kg piece of aluminum s1 htjod(mk1j9t9s l k*its at the bottom of a lake, right next to a 10-kg piece of lead. Which has the greater buoyan dt*(lt k1h 1mjoj9k9st force on it?

  A piece of iron rests on top of a piece of wood floating in a bathtunwnl7o9d uks xkf337ojs:t/1 b. If the iron is removed from the wood, what happens to the w39/nuslt7 onfk73 jwoxs:1k d ater level in the tub?

  A piece of wood is floating in a ba u5+5u: rle:61vsfp c b k-wz5yjadpe+thtub. A second piece of 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, whatbd cep-rlu k5upv: 61zaes5+5fw +y: j happens to the water level in the tub?

  Water flows through a pipe. The diameter vne u5 8qc:zip+ j ,n4ehv2:mpof the pipe at point B is larger than at p8mev nj52+ 4uz:,hncvpp iq:eoint A. Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontac+cjcd8:hb ; tl pipe. If the pipe widens to twice its original radius,;cbcjth +c:8d what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the:n g(uh 3y*k(o,v6xcd wewr5 r pipe narrows to half its original radius, what is k,vu(go3:nw x5c6dr*wrh ye ( the flow speed in the narrower section?

State Bernoulli's principl.nj0m ;d6z9 hllbvqdp8f,l o/u+e 6di e.

  Which one of the following is 8 a awa ,*tuofiw3 cc7w)+(trtassociated with the law of conservation of energy in,7 c uwofiat wta(*wt8r)3ac+ fluids?

  As the speed of a moving fluid increases, the pressure in the fluidr(3fk ,-n r ki+xktb) aujsovp*t :o1-

  Water flows through a pipe. The diameter of the pipe at point B is lare tje:q i(0uu.rxf *te ll/49mz5k9lpger than at point A. Where is the water prr/ep 9elju0ul4 .ze( l:xm95* tfktqiessure greatest?

  When you blow some air above zu/nyh6e8 n68.n djcxa paper strip, the paper rises. This is because

  A sky diver falls through the air at terminal v *ns7m3hdsgm1elocity. The force of air resist3sg*s1hm nmd7 ance on him is

  Two Styrofoam balls, of radii R and 2R, are released simultaneouslrgtkt-ia .:o+e:y6 gvy from a tall tower. 6 kyt g+:etrg-.:avio Which will reach the ground first?

  When a small spherical rock of radius r falls through water, it experienc,u(sa+n*d l sc1bs- khes a drag forcsc,dak+b* s1nu- ls( he $F=arv$, 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? Thatwy wnx501 s1vl iswyn5 0wx1lv1s, 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, but pipe B hap5:l, x f wggmzw:5da4s twice the diameter of pipe A. Water undergoes viscous flow in blz4gxw,apw :d5f : m5goth 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, but pipe B is twicet23etc l - c- l6+ocvx9m n6bb++czjym as long as pipe A. Water undergoes viscous flowzbt-b-23 c n+le 9+mcv6olxc+cy tj6m in both 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 gj8)2zfhio1po c fw9v ) 2:yimsreasy. This "greasy" taste seems to be associated with oil spreading out all over the surface of the soup, instead of sta ijphfs9of y):)zm2c1w8ovi2ying in little globules. To us "physikers", this is readily explained in terms of

  When a tube of diameter d is placed in water, tb/f(f xi:8u.zjjq ,mx3tc 7)tlyzs * che water rises to a height h. If t z* 7 t ,bysjl.xzi(fc8:3jf)/cxu tmqhe diameter were half as great, how high would the water rise?

  Certain insects, such as the water bug, are sufficienfm a2))efpk *qj8b; :f.nwddm tly 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 weigh: fen2mam)p;f)kw f8dqd .*b jt of bug B?

  Certain insects, such - abbhp mx)20j w rr3p(qlnv-rub),0n as the water bug, 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 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, twij30bx0vr))2l wnr , buhm-(apb -n prqce 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 has.jdsur 6 kd4*k a mass of 30.0 g. d r*s6 dkk4ju.What is its density?

  A liquid has a specific gravity of 0.357. What is its densiubl) e) elxd) f- sbkow5,8hn;ty?

  A brick weighs 50.0 N, /-ns+ 4u8rfglb 4w mir w3b0nland measures 30.0 cm x 10.0 cm x 4.00 cm. What is the maximum pressure it can exert on a horizontal sg3n 4n4i/b sr 80lwbml-urfw+urface?

  A person weighing 900 N is standing on snoc(i ybw53 y . j7szdcw3yx5)jcwshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withsta72t6dmm8 0cm epgm6er vjc 5(,8gubxjnd at a depth of 120.0 m in the ocevmemctgbc,r(2m67xdujm g0 58 86je pan?

  A circular window of 30 cm diameter in a submarine can withstand a maximum ffc;(w jnx7gj 6ksa :*sorce aj67x;fsjkwn sc(* :gof $5.20 \times 10^{5} \; N$. 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 absolo )dw2q97 v 8hdkm;+/sntzlqtute pressure is 300 kPa?

  What is the gauge pressure at a g qtt 28az/j:xsl7* melocation 15.0 m below the surface of sea? (The density:e 8jttlzx*/s7g q a2m of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location n r- srkoa o( wd9ajuk+-i;t);15.0 m below the surface of sea? (The density ofs odu a-n(r-wj k);+t ;i9raok seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a 3/g kzjwtfb+gm:29uhhydraulic machine. The small pistonb+zuwhj: gk 9/2 fm3gt 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,+;*zoz l,yow6b9 h; yvr)prwv the small piston has a radius of 5.0 cm and the large piston has a radius of 15 cm. What force must be applied on the small piston in order to li6v)b p yo*;ryzzh+ov,;r9 w wlft a car weighing 20,000 N on the large piston?

  A 13,000 N vehicle i4u: 0k/kdqxt7u t mti.,vrew+s to be lifted by a 25 cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm diameter piston to accompli:+qrwetktt4 /.vk, di x0mu 7ush this?

  The small piston of a hydraulic lift has a diameter of 8.0 cm, e-br s)wt96 *xj5f k4soa )iiqand its large piston has a diameter of 40 cm. The lift raises a load ofje ki4 9*o5awr6q)x-tsibs )f 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 v6 1bmqbikcsi/c8mc1r;bd ;730 N in water. What is the buoyant force ob1bc7qs m;m 6 8/kcv;cdb ri1if the water?

  An object has a volume oe czbwtn 8m- 3vha8;/rf $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is supported by a stze-( (1ox*mnfh-c n xsring while submerged in water. What is tsxocn ( *1(hzx-f-m nehe tension in the string? (The specific gravity of iron is 7.86.)

  If the density of goldcu uav) hy*c, n2m*h-l is $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarine (density ,) xaah/emg9b2ta7gg = $7.8 \times 10^3 \; kg/m^{3}$) 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 whej jmyxbpr6:zj h*d+6otj8-2mn it is immersed in water. What is the specific gravity of the objecbzhjdm8* mtxjr:p y- 6o 6j2+jt?

  A container of water is placed on a scale, and the scale reads 120 g. Now azh;+e4yal (r u 20-g piece of copper (specific gravity = 8.9) is suspended from a threu4l z+h(ye ra;ad 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 (cfve9gr/mcj/ ;bq8s 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 /i5 + oehb,s gxyoye7/f6s :wewill just barely float in water. Wy,oi67e / +s e5bgfewhy/s:oxhat is its mass?

  A rectangular box of negligible mass measures 5.0 m longkh: 7 fmyu:xga:3c.bb, 1.0 m wide, and 0.50 ma7h m fg :x:b3uyb.:ck high. How many kilograms of 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 sa62hm vwvdo70: x o1ifurface of the water. The weight of the displaced water is 2000 N. What is the weighwmf12i a0ovxv 7do6h:t of the object?

  A solid object floats in water with three-fourths of its volume beneath the sur uk syk)v281:hgxh u yg1m/tw0face. What is the object'su v)mg/:h1t k2 x1gyw8 u0shyk density?

  A 200-N object floats with three-fourths of its volume5jw rb(/b m9qv beneath the surface of the water. Wh wjq(rvm9b/b5 at is the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. Whoke5g;j6+qpd gkq4 2i at is the minimum area of the floe that will just support the bear in saltwater of specific gravity 1.03? The specific gravity of ;gqpkg6od+ e5k iq4j2ice is 0.98.

  Liquid flows through a pipe of diameter 3.l8id87 jnz, ,nnrx t0w0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. Thereie:m 8ep+6m ml. lj.8p*dwnnp is a 2.0 cm diameter restric me8wm.n:6jnl elp.p +*dpmi8tion in the line. What is the velocity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with a press n uoh9kyxt1h e79gj(9ure 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 drin lnamofm u:1b-8gi* u8king fountain with 300 kPa, if the fountain ismflu-o a ib8 *1mn8:ug 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of a water stg-yt3aegkik x0c0 : 6torage tank that holds water at a depth of 15 m. At what rati y3gtkx:a ek6-g0c0t e will water flow out of the hole?

  Water flows through a horizontal pipe of nngdfsbt6* p/i6f r 859n 5wk+fk1rzbcross-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 c-:kp/hu/l-lgotqylw2 5 j q*take to pour 4.0 L of oil through a funnel with a neck 15 cm:ll l yj q/-ukoc-2*5/ghwqpt 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-ue75t r 4 vjsgkuht:2bx8o-,whp of 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 constant bloodvw7 b- rtts8hk52h:gj, o4eux flow?

  Two narrow tubes are placed in a pan of watera/hrltyyz7jzyz 2/96 . Tube A has twice the diameter of tube B. If water rises 24 cm in tube A, how high will it rise in 2tlha/zyy zz7 jyr 69/tube B?

  The surface tension of wate( krpp42t4kb)ii )15wornpc or is 0.073 N/m. How high will water rise in a capillk )4ppnw it 5)(or1rb 24iocpkary tube of diameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capillary,p 7nuc lyvsp 40,6ssd tube with a dia0sds 6 p7cp ,lvn4uy,smeter of
0.50 mm?

  A narrow tube is placedw7hx;l ku97r 4:fq uad vertically in a pan of water, and the water rises in the tube to 4.0 cm a:du 7lf hx749qr; uwakbove 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. What happens to the height of the liquid column in the tube?

  Consider a rectangular*sc0z tyzcy(*k)*n tguy rrh4) (l3pu frame of length 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 thznhy*ryctg* 4)zyut l3psr )cu( 0*k( e soap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and width 5 cm, and is buil) 1ss/amr8 onrt in such a way that one of the longer sides can be moved without bursting the soap film contained in the frame. Soapy wate1 rs)oms8anr/ r 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?