The three common phases of matt4mm g;h3-7i1tkqb(xk fskw 0 ler are

  Density is

  Substance A has a densitymgjk9n+c2xk 8c : wzs3 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 unb-8*tarwg kq jrx+-j.uru h;9it of pressure?

  Consider three drinkt lly,446mw. odgv+mzing glasses. 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 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 4t4m w ,do zlvl6.g+ymthe greatest liquid pressure at the bottom?

  What is the difference between the pressures inside and outsideu9qx xg)mx(x, :oaw+i(aw 1bo a tire called?

  When atmospheric pressure changes, whaq3xm63 4ukrs.p* jw uxt happens to the absolute pressure at the buskm3 ru 6wx4q.j3x *pottom of a pool?

  You are originally 1.0 m benelq t)tj8/8 nf7/g/ tx0mofmle ath the surface of a pool. If you dive to 2.0 m beneath the surfacefm/o/f t8j 0qm)g8lttxe ln7 /, what happens to the absolute pressure on you?

State Pascal's princiz g v7pa*: e)-hp7tcufple.

State Archimedes' principlbxi7 f9oi3x( hdfbp6 ;e.

  $50 \; cm^{3}$ 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 cb n *u.-ehppu14bv nvx x0yr-5onstant density, what happens to the buoyanx0uyp45 v.v x*ub1 np br--neht force on it?

  Salt water has greater d,hlx sd7o h8y3ensity than fresh water. A boat floats in both fresh water and in salt water. Where is h 83ls,d7xohy the buoyant force greater on the boat?

  Salt water is more dense than fresh water. A ship floats ja blt da480 k-gj0diz,*.pob36igo w in both fresh water and salt water. Compared to the fresh water, twti4*gj 8i3bagpz 6doakoblj . ,d00-he volume of water displaced in the salt water is

  A steel ball sinks in water but floats in a pool of mercury. : cyd ,nikxr/4 / upmy9w.h8xx Where is the buoyant force on the ba: pxw4h8u.r9xx/iyy/ kndcm ,ll greater?

  A 10-kg piece of aluminum sits at the bottoekypuvuxqkc er 9 866 hp+2ih2), -wgyjig6k9 m of a lake, right next to a 10-kg piece of lead. Which has the greater buoyant force on i2-yg8ikpgry9e69jh x 6u) pcqhuve ki,+6kw2t?

  A piece of iron rests on top of a piece ig h4isf4d4 q,l)h,nf of wood floating in a bathtub. If the iron is removed from the wood, what happens td fhlgn4is,,q4f) 4iho the water level in the tub?

  A piece of wood is fl1 y8zi2e/v +sla foogwgpdn-xu3 . t37oating in a bathtub. 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, what happens to the water level in the tub?1dsv3n.y e 27-fg+i8/ upwo3z xaglt o

  Water flows through a pipe. The diameter of the pipe at point9y9q osklb(tl7 pdnh 01c2pjfb-.e(d B is larger than at point A. Where is the speed of 9(b0 o.7fbep jd1t ly2cn lkd qp-(9shthe water greater?

  An ideal fluid flows at 12 m/s in a rpsr51v8ou v/p9o b r1horizontal pipe. If the pipe widens to twice its original radius, what is the flow speed in the wider sect /uob 18r9r ovp5svpr1ion?

  An ideal fluid flows at 12 m/s in a horizon4s iy;ajys,9auy*uj3b9y f m1tal pipe. If the pipe narrows to half its original radius, what is the flow *j1439uya; jays m yuy bsif,9speed in the narrower section?

State Bernoulli's principlez.z 54yakz1ac2( n9*m wciz wk:het0r .

  Which one of the following is associated with the law of conxtid 2jhk h0iw c9.7o0servation of energy inc h29o.7k wdjxii h0t0 fluids?

  As the speed of a moving fluid increases, the pressure 57w 5yf 44cr,bn;wnwh ob(bz;fl vf. q48mdks in the fluid

  Water flows through a pipe. The diameter of the pipe at point B j32/t*qq oln2 ej+aj4 +dcerhis larger than at point A. Where is 2+jdqn4crq* 3 o+je2 ljaeht /the water pressure greatest?

  When you blow some air above a paper strip, the papkb+ee) ;n-ioxj ,g 7n9:a .ijhvl 4pider rises. This is because

  A sky diver falls through the air at terminal velocity. The force of a.y g,r)qpfd(vu h2 xt3ir resistance on him isqdgtf.2yh 3pu )x(vr,

  Two Styrofoam balls, of rasuk;jqy84m,x( 1m(wt2uetr l dii R and 2R, are released simultaneously from a tall tower. Which will reach the ground fir21xy,t4 8ut; re mm(lu(jwqskst?

  When a small spherical rock of radius r falls through water, it experiences 9jhp+/5;. 7ziz fuluvey k zn:a drag fo9z /uyu nv5 ki+zz: j;peh.fl7rce $F=arv$, 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 piokuhzd++*u22nf . zt x5byk.qpe? That is, if you made .k*z.+ofq5 z 2t u+kudhbnx 2ya 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 has twice t7ol4 d omt a,i2(yeaca (55nrez9r0hohe 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 5n mtd0roy9 zr2 h7ao5lo(4e(a, iecais the flow rate in pipe B?

  Two horizontal pipes have the same diameter, but pipe B is twice as lohbi,-erbt vo6 u;u5h y16 cn4eum ;*vsng as 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 i;-ihc,5t6uvev1seyo br hbu*6;n 4um n pipe B is Q, what is the flow rate in pipe A?

  When soup gets cold, it often tastes greasy. Thisqcvy drr 8v)j,.mz* o 2ex t7l9ze55ho "greasy" taste seems to be associated with oil spreading out all over the surface of the soup, instead of staying in little globules. Te h.j lx) yc5r5* z2zor v9d,evtq78moo us "physikers", this is readily explained in terms of

  When a tube of diameter d is placed in water, the water ge wn6ib +iw/19a5gb krises to a height h. If the diameter were half as great, how95b gn1+ abw6ikw/g ei high would the water rise?

  Certain insects, such as the w x74l9 zpykb+nx6:kw bater bug, 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 b lxx4+ 9bn6:k ywzbpk7ig 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 the8 zzpw bwx:r77 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, twice as wide, etc. What is the maximum upward for7p:xw rwzb8 7zce on the feet of bug B?

  A plastic block of dimensions 2.00 cm x 3.00 cm x 4.00 cm has a mass of 30s5,mq hca .yy.v9)su i.0 g. Whauh 9)mai sy5cs,qv..yt is its density?

  A liquid has a specific l(m; i5inci(l j2cq8 6g izy+ngravity of 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10yaj 5 ;sv7i2bjt9h8 qf.0 cm x 4.00 cm. What is the maximum pressure it can exert onaqi jhy982s ;j7 fv5tb a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each snowshoe hasi)6 wse fa.-bzdu7*ch area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withnzl+lr5j / .dk ki0c(a.k9eclstand at a depth of 120.0 m in the ocelnczecr9/.kl(kk+.i d5la 0 jan?

  A circular window of 30 cm diameter in a submarine can bg-f95ci* zka withstand a maximum force b k*aiz59 f-cgof $5.20 \times 10^{5} \; N$. 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 absolpum:p*(i) 5srqz fca0ute pressure is 300 kPa?

  What is the gauge pressure at a locatio66tsulyy v1 *0-lgs.q+ey effn 15.0 m below the surface of sea? (The densit0y 1*v t6+gesyf. y-felqslu6 y of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below the irilr y81o9z -; b-cn8:ew3v h3wi3 5 qznjtdosurface of sea? (The density of seawater is n-;jhnz y cwr oi83 3wi tvo-35r8eqibl19:dz$1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston o u.gjxv--rmx2 f a hydraulic machine. The small piston h.2-vr -jx mgxuas 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 z;1/ qjrap49w jrmos. cm and the large piston 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 pist ;qr4w1 9joaj/mszp.ron?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter hydraulic piston. What f,zzz f*8ake ei:j lg8/orce needs to be applied to a 5.0,i z*8gz aeke 8zjf/l: cm diameter piston to accomplish this?

  The small piston of a hydraulic lift has a diam:5mc;i y1lvxqeter of 8.0 cm, and its large pismlx;cq : 1iyv5ton has 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 asj.723 4lcccx8t nwv 8rdnim4x1d 8mrnd 30 N in water. What is the buoyant force of tv tc dc rm1m44xwl2.id8cx8n s87jn3rhe water?

  An object has a volume of t zt ca3g*9z 87.e-hucgekw4z$4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is supported by a stt(.m(4j orzptl9n1ub6 r4 mcz ring while submerged in water. What is the tension in the string? (The specific gravity ofz t(zp4tmr.nml64job1 (cr 9u iron is 7.86.)

  If the density of gol5k.ml.b 9bs rud 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 +-j7m4ktji zpsubmarine (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 cop pxeaol n85k:)c4b yf(z5:it is in air and 6.86 N when it is immersed in water. What is thnxc:)kfal8 zo (4poep cb5y 5:e specific gravity of the object?

  A container of water is placed on a scale, and the scale reads 120 g. Now a 2- 9.on /qwplsv b9oel*0-g piece of copper (specific gravity = 8.9) is suspended from a thread and lowered into the water, not v .obqs- pln9o*l we/9touching
the bottom of the container. What will the scale now read?

  A piece of aluminum with a mass of 1.0 kg 6:ml df)zt/ jrj*ylz ;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 willp9vlna+ 5xs)o2 r+ 9ka6gj zbx just barely float in water. Wnv)ajp2x zga5x 9blsor++6 9k hat is its mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0 m wide, and 0.503uf,z zw 90 :ve/lsnsg m high. How 9/ nlg:0f3v ,suz swzemany 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 benv qlu4.oq0 wq;c6h9 hveath the surface of the water. The weight of the displaced water is 2000 N. What is the weight o4v c 6o .wv;uq0hqhl9qf the object?

  A solid object floats in water with three-fourths of its volume beneath:**maoxu8 yysq-vc( o the surface. What is the objm 8y v-xcq*soa (ou:y*ect's density?

  A 200-N object floats wt- ,rv 2vh4n /bpsy;ktith three-fourths of its volume beneath the surface of the water. What hst;byrpv, v4nk- / t2is the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What is the m zi 3py/e0k uz/yb97zlinimum area of the floe that will just support the bear i3/y 9ubi7le kyp0/z zzn saltwater of specific gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pipe of diameter 3.0 cm at3i(q(a 0domxx 2.0 m/s. Find the flow rate.

  Liquid flows through a 4wo 8qpve--w .2kgpd(h.0 cm diameter pipe at 1.0 m/s. There is a 2.0 cm diameter restriction in the line. What is the velocity in this restrw pqg2k-ehdvp 8.-(o wiction?

  Water flows at 12 m/s in a ha;4 v .xrekjr1orizontal 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 ta0donmffz/bo nn1z +58ke for a pump to supply a drinking fountain with 300 kPa, if the fountain is 30.0 m above thf 0 f1+b o8dnmzo5z/nne pump?

  A hole of radius 1.0 mm occurs in thehx(b , nxhbo,y.l ;mk8 bottom of a water storage tank that holds water at a depth of 15 m. y,xom,8lbhxn (;b hk.At what rate will water flow out of the hole?

  Water flows through a horizontal pipe of cr9gqhnd*2 a ts,oss-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 .lh01,wz zr5ey rx/q rPa-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, and neglect any drag effects due to the upper part of thew.ezrh0q5rz ,1x r/ly funnel.

  Suppose that the buildxnzs,(6rty,2y w0t ig-up of fatty tissue on the wall of an artery decreased the radius by 10%.xz(ysn0rt,y2g w 6,t i By 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 7mkv 0 tfy0sy- oyumgs*,7ao*has twice the diameter of tube B. If water rises 24 cm in tube y0ssv- o ma yu*0ot*kg,7f m7yA, how high will it rise in tube B?

  The surface tension of waterxl/8 td)yu32noiat5(dx1tnr is 0.073 N/m. How high will water rise in a capillary tube of diameter td(t/n1a83n uti5xxo)dy l r21.2 mm?

  232

  To what height would70ii;a //sqtq ivpy ftf4+h4 j water at 0 degree Celsius rise in a glass capillary tube with a vsqiti0/ a +fy;4/hj4pf iqt7 diameter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and fgr 7wvqcs*i,/la1 i, 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 addi 7cg1/ i lv,a,*sfiqrwtion of some soap. What happens to the height of the liquid column in the tube?

  Consider a rectangular frame of length 0.120 m and width 0.600 m w,czk 74z(9rq:jl higw2ku, y8tks x.hith a soap film formed within its confined area4 .zk kjrx9wk,c,hisu2 zy:h l7(8 gtq. 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 br11v49wp( jjv w1my5g+yijsframe has length 12 cm and width 5 cm, and is built in such a way that one of the longer sides can be moved without 49+j rwyy p 1bvwi1jvsmj1( 5gbursting 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?