The three common phases of mat os+di/rm 3*hgter are

  Density is

  Substance A has a density os 96h ye:lqsm3f $3.0 \; g/cm^{3}$ 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 presszb z1u8a2 ooi5k.jw1c cmc(o0 ure?

  Consider three drinking glasses. All three have the same area base, and c tdlwfi)be-hw +8;h:all three are filled to the same depth with water. Glass A is cylindrical. Glass B is wider at theweh+it dlf ;w) c:8b-h 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 liquid pressure at the bottom?

  What is the difference between the pressures inside and outside a tir30r/ xrbte/0iuot) c qe called?

  When atmospheric pressure changes, 03f9 0hh,s( t5pe ;aufbytf dnbxs:v0what happens to the absolute pressure at the bottom of a pool:xa 3f5pv(0;b,fub0yn hhe 0 f s9sttd?

  You are originally 1.0 m beneath the surface of a pool. If you dive to 2.0 m bctv6v-aaamx-cm7 pi..dh 8o,eneath the surface, what happens to the absolute presv-v .md xma6tah,-i87 pocca.sure on you?

State Pascal's princi( 2f* - fi.tp5vnai ox0mkpw*tple.

State Archimedes' principey64,kdji z yz +rb2sa uc-v31le.

  $50 \; cm^{3}$ 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 *:4 hev xml;yuinto water of constant density, what happens to the bm;4 hl*vye:uxuoyant force on it?

  Salt water has greater density than fresh water. A boat floats in both febq(vfent xvb23 b(xr./;i js;x go.3 resh water and in salt water. Where is the buoyant force greater on the bo. vrob. xbs3x(;vgb ef intejq2(; 3/xat?

  Salt water is more dense than fresh water. A ship floats in bobxd td k q j*f*u, /:8jlmaww1,d(t+bmth fresh water and salt water. Compared to the fresh wate:l *ma xutdj+/ 8fbmj(tq* d1d ,wk,wbr, the volume of water displaced in the salt water is

  A steel ball sinks in water but floats in a pool of m e2s)wbgr (b2 w)q3dwmercury. Where is the buoyant force on the ball greater?q2wb2b3)deg( mwr)ws

  A 10-kg piece of aluminum sits at the bottom of a lake, right next tfi9sh5 c ;xe6to a 10-kg piece of lead;c et9f ix5h6s. Which has the greater buoyant force on it?

  A piece of iron rests on top of a piv2cf kw73 o9,k.k pqmpece of wood floating in a bathtub. If the iron is removed from the wood, what happens to thekk,mc 2f q793pv.kow p water level in the tub?

  A piece of wood is floating in a bathtub. A seco5 1v +n,uxj*donlkxj6 ,lbdp1nd piece of wood sits on top of the first piece, and does not touch the water. If the top piece is taken off andvxobd,1 nujx k,pldn *1l +5j6 placed in the water, what happens to the water level in the tub?

  Water flows through a pipe. The dilj(rs lmv)4s -ameter of the pipe at point B is larger than at point A. Where is the speed of the water greatelv ml-sjr)4(s r?

  An ideal fluid flows at 12 m/s in a hori (nm29a*nb k.immnzx,zontal pipe. If the pipe widens to twice its original radius, what is the flow speed in the wider m,nzmnn .(* a29 xmbkisection?

  An ideal fluid flows at 12 m/s in a horizontal qmd 99 c4fl1 fx2vqzn4cds1w2pipe. If the pipe narrows to half its original radius, what is the flow speed in the narrower sec1qqc4v1lcd fs9dnw4 22 fx m9ztion?

State Bernoulli's principl 76moohh;s)kg b8p(lle.

  Which one of the following is associated with the law of conservarr8,o-2hy vuy tion of energy inhy,roy uvr -28 fluids?

  As the speed of a moving fluid increases, thu8;zp7pbl2ak e pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at point B is larger s:;cdf 09t3o wj3yrag)xl7 vp/3nhhgthan at point A. Where is the water pres:vplyfox7t930whh);grca /3 dn g3 sjsure greatest?

  When you blow some air above a paper strip, the paper .7 ak)8 wnkdwurises. This is because

  A sky diver falls through the air at terminal velocity. The force of9x to o1wfcn67 air resisto6xoc9wf t 7n1ance on him is

  Two Styrofoam balls, of radii R fps, )rf* jh3 ;cc )(rqml7hnpand 2R, are released simultaneously from a tall tower. Which wfccq;)3 rj(fr,hm)pp ns h7*l ill reach the ground first?

  When a small spherical rock of radius r falls+tw odo6r,b )42ngbfl through water, it experiences a drag force ,4rnb2wb g) ooftd+l 6$F=arv$, 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 flo,(n1pqi 2xd 5gs( xh nsxv9q8sw of fluid through a narrow pipe? That is, if you made a 10% change i(x9sgv, xnqs5x 2(hnp qsd8i1n each of the quantities below, which would cause the greatest change in the flow rate?

  Two horizontal pipes are t-2f;dtt6 w3z s*lpxlxx9p b58bpvup3he same length, but pipe B has twice the diameter of pix3u2-l6pwsb9b5x tpv txzd8 fl*p3p ;pe 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 flow rate in pipe B?

  Two horizontal pipes have the same diameter, but pipe B is twice as long ay- wb mb9n n8)2q*wmlls pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the len )*wn-nbwb289mmllyq gths 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 seemsgj/1l jte76sf35 sgrc to be associated with oil spreading out all over the surface of thc gjes 3 1rf57g6/sjtle soup, instead of staying in little globules. To us "physikers", this is readily explained in terms of

  When a tube of diameter d is pltn hchjw-k9u (2+ki bgv 2;4tqaced in water, the water rises to a height h. If the diameter were half as gr j4wvhq2kt2t;9giu hbk( -+cneat, how high would the water rise?

  Certain insects, such as the water bug, are sufficiently lightweight thatouuy+:qm :vxk:ayk7 . 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 wk o a.: yqxv:ku:yu+m7eight of bug B?

  Certain insects, such as the water bug, are sufficiently lightweig;r2xgo,n )g8a 6tdjfoht that they can run on top of water without breaking the surface tension. T2,ofogxtd;an8jg ) 6rhis 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 p(7h d1uut0ved y ha+i67ixm ;yj*l0 mcm has a mass of 30.0 g. What (;i6d7u *7y xpedh iym+1ljt hva0u0m is its density?

  A liquid has a specific gravity of 0.357. What is its densi.j ;g yctc-agw5t,3c nty?

  A brick weighs 50.0 N, and measur8 gwtmb;wkl 6r52rd4o es 30.0 cm x 10.0 cm x 4.00 cm. What is the maximum pressure it can exert on a dwg;r6t4wr bolk52m8horizontal surface?

  A person weighing 900 N is standing on snow-6n+o ir nu//x.f*x4*o6tyw pd jbgwu shoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand at f wli) k.)8kz*8h-tcfrp( dxh a depth of 120.0 m in twzt)( 8f hxik-8.khcrp*)lf d he ocean?

  A circular window of 30 cm diameter in a submarine can withstandr kx1kd( +5af6tp r9dv a maximum force o krx69dd r a1tf(5v+kpf $5.20 \times 10^{5} \; N$. 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 ab5s7aufus kk) (a2d;c dsolute pressure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below the surface1qr7d6t xt * gt+kxmc3 of sea? (The densitkmt7+rd1g xxt6* q3t cy of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a loy6g9r5up*v (y/pgfbb cation 15.0 m below the surface of sea? (The density of seawate g (u y6p/brpgv9y5bf*r is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydr 6wiwpshq0d:y*vc4shkj9/f2 aulic machine. The small piston has 9wkcip syd/ w hf*6h:j2 svq04area $2.0 \; cm^{2}$. If the large piston has area $40 \; cm^{2}$, how much weight can the large piston support?

  In a hydraulic garage lift, the small pisto u24,oa;zlw;wa 6brzm n has a radius of 5.0 cm and the large piston has a radius of 15 cm. What forcelz ar;o;,muaw 42z6wb 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 +dp;qexrc x(4mv3ak,cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm diameter p+q dr ;4kcvx3,xpa(m eiston to accomplish this?

  The small piston of a hydraulic lift has a diameter of 8.0 cm,cvt ct2:bna,-i w9m;r and its large piston has a diameter of 40 cm. The lift raises a load 2c:ib -;vn,wtca m9rtof 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 i,b u3 s5g8:4nbnoytt z3b;wirn water. What is the buoyant force of the tn u3gwbrysozi4bt;: 8,53n bwater?

  An object has a volume r us.s;tvzta4ozktp)78 cx93gac +8d 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 stri 9mtbj hd8.q5y:38;p thr hioa7p)nvw ng while submerged in water. What 3ph thmthp5vr8dqn.; 7 w)ai y:89jo bis the tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gold i5h( ibn9hwac c6yf6c ,s $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarine (densit2z8w uga6i .x8zzi mu/v(q*rxy = $7.8 \times 10^3 \; kg/m^{3}$) 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 inw :*1girw o*i;gg4 jdk air and 6.86 N when it is immersed in water. What is the specific gravity of thej1r*4giki do*gwg ;:w object?

  A container of water is placed on a scale, 6o v 4s.w7ytiiand the scale reads 120 g. Now a 20-gi i 467tyos.wv piece 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 maa+ v0 /wqu(svsss of 1.0 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 barely / jx;peab*,lt float in water. Whetb*a j l,p/x;at is its mass?

  A rectangular box of negligible mass measures 5.0 m long,us5v:iqx oqs-k+r8bo .- nww ( 1.0 m wide, and 0.50 m high. How many kilograms of mass canws - .w:qkxis- bnvquo85(o+r 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+li wvr-u+i5 c .423in:i8 egmfgdtjq half its volume beneath the surface of the water. The weight of the displaced wa+5m :uw2cirt3 i 4-.dgnq8fev+jgliiter is 2000 N. What is the weight of the object?

  A solid object floats in water with three-fourths of its volume kdo.xe hpfqgc2 +p,4:d e:7 fpbeneath the surface. What is the object'hg+,xqe 4fddpc:f 2epp. 7 :oks density?

  A 200-N object floats e)ol2*;d phcrd.t;pywith three-fourths of its volume beneath the surface of the water. What is the buoyadpde.*c o)t h;ryp ;l2nt force on the object?

  A polar bear of mass 200 kg stands on an i1yo 9rvm+s/ zzce floe 100 cm thick. What is the minimum area of the floe that will just support the bear in saltwater of specificvzy1/s ro9+ mz gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pa1k(f e 9emmq7kg,s:pipe of diameter 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. There is a 2.0 c2cxe0*lxr/gjvfr8 c(74; sahh1i ejmm diameter restriction in the line. What is *s;rhr1( 7 xclvm e hgx a4f/0j8ec2jithe velocity in this restriction?

  Water flows at 12 m/s igs y2q 7qbslboj;jg;.47r l1an a horizontal 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 fountain with qt-240ybmcnrfjz od h ;i:6d4 300 kPa, if the fountain is 30.0 m above the pof4ni6t : 4d-cj;rymq 20z bhdump?

  A hole of radius 1.0 mm occurs in the bottv*umjwy.m,(; j:ykx;a kubrv w*2y7nom of a water storage tank that holds water at a depth of 15 m. At what rate will wa :jwv 2k7ny ua**b .ru kyym;m;(xj,wvter flow out of the hole?

  Water flows through a horizontal pip1 0iacfh7r 7ij-8lt cce 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 viscl zq9od2 (7icaosity 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, a2 (d9 ilqozac7nd neglect any drag effects due to the upper part of the funnel.

  Suppose that the build-up of faf87fpqou trt nly*4y)i(94 u xtty tissue on the wall of an artery decreased the radius by 10%. B4rn fi89ptuyq) u4l* xoyft(7y how 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 hasy1txg zy 3im cc+(+i.b twice the diameter of tube B. If water rises 24 cm in tube A, how high will it ricgiym icxyt3b+z.+1 (se in tube B?

  The surface tension of water is 0.073 N/9x7efut9v o y9jr58 , v:s9k*myf bastm. How high will water rise in a capillary tube of diamem :r9yva 59*vf9utx8t9 sef 7sbko,jyter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capillary tu)vbk mpudmki)j ( d*jen o4u7m0y*.g7be with a diamiv k p.*yu)n)0k*m47 e 7mdmdb(gu jjoeter of
0.50 mm?

  A narrow tube is placed vertically in a pan of eum):s:j ,zmf 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 vau:m :f,j)m ezslue 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 , 4-ofgojjw7d7qq w 9rand width 0.600 m with a soap film formed within its confined area. If 7gj,odq 47owrq9j-f wthe 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 cm and width 5 cm, aiiyvydn-s3 .tr 5gy)6nd 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.giy)t -riyd5v s3ny6 so that the frame is 12 cm square?