The three common phases of matter yl7r-l m)yf4h teq sy 9nu h.lkk1b0,:are

  Density is

  Substance A has a denskr*g3)e,+otwz gcxi4 ity 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 unit ofyy+ qo );d4n :tenpxx0 pressure?

  Consider three drinking glasses. All thri shg7n.i+uz+ee 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 l g inuiz7.++hsess water than A. Which glass has the greatest liquid pressure at the bottom?

  What is the difference between the pjc,wy(.zg / xr)g3wqsressures inside and outside a tire called?

  When atmospheric pressure changes, what happens to the absolute pressure v83r(ec *zscjgpwovqm*9/g/ at the bottom of a pool?/ mc(q8 *jcw3vvgr/e9*ogp sz

  You are originally 1.0 m beneath the surface of a pool. If you dive to 2.5ef1e8,c* nyeqs znew 1f4k )q0 m beneath the surface, what happens to the absol,e8e)f*e f41wqcn qek5z s1 nyute pressure on you?

State Pascal's principltu w0m7 n4mhi( 2b5wwi2m+yo ce.

State Archimedes' prin 06 nsxi,e)pihciple.

  $50 \; cm^{3}$ 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 yok zxlh/ 26ei2 er;q+deeper into water of constant density, what happens to the buo2 ie kyer;x/zo6+ ql2hyant force on it?

  Salt water has greater density than fresh water. A boat floats in bo ykii77v( /*usujq/tqos2 ra*th fresh water and in kqvs*q*2sr(/7 ioiyu aj/ut7 salt water. Where is the buoyant force greater on the boat?

  Salt water is more dense than fresh water. A ship floats j2qo4zjtq fc2oil)x8k y0 ,.uin both fresh water and si8uqlo 2zt,jcfj0x.k o24q y )alt water. Compared to the fresh water, the volume of water displaced in the salt water is

  A steel ball sinks in wlx)( +w+d) q9wmk-/ tx te o4d+ihvvuuater but floats in a pool of mercury. Where is the buoyant force on tv)wxewu+o dkm(du ) tl-4i+9+vt q/hxhe ball greater?

  A 10-kg piece of aluminum sits at the8ja1ti,0 qm :e bay3ij:+usug bottom of a lake, right next to a 10-kg piece of lead. Which has1qu,e+i3augatjibs0jy8m :: the greater buoyant force on it?

  A piece of iron rests on top of a piece of wood floating in4 3falg o:5ryp a bathtub. If the iron is removed from the wood, what happens to the water level 4pfgy 3lor:5ain the tub?

  A piece of wood is floating in,4/+b(jej8gclq yqj6 *o rsik 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 jjsbqeo8 y6 c4rl, /+jgq(*ki the tub?

  Water flows through a pipe. The diameter of the pipe at point B to8byk 0ei9tsdb 7 -1ais larger than at point A. Where is the speed of the wo9 1aeb8yt-k0 7 ibdstater greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe.,2k.n ppk ho42:slogt ,0b,do ca lx+b If the pipe widens to twice its original radiusb.p2cops+o0lh4btda ox2g nk ,, , k:l, what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe naro9iji/;nh6 awuvl4 : yrows to half its original radius, whath;n6w ay4 :joliiv 9/u is the flow speed in the narrower section?

State Bernoulli's principle.d6wi )f3* ql grzj(ib1

  Which one of the following is associated with the lae)d7:0pete/xxkd + e 7 fla-uww of conservation of energy in f ad fl70xw:+eeexe)/-t7p ukdluids?

  As the speed of a moving fluid increases, the pressure in t)svm, 1n s25e-*jal, wor e+*rdrin)zdmi3 n mhe fluid

  Water flows through a pipe. The diameter of the pipe omsne 2(bsix2o .k71y at point B is larger than at point A. Wher1ni2xskb m.e(oos7 2ye is the water pressure greatest?

  When you blow some air above a paper strip, the paper rises. This is y6q adpheb*80because

  A sky diver falls through the air at terminal velocit99 v0jjk; uowyy. The force of air resistancj9vy9ujk w0 ;oe on him is

  Two Styrofoam balls, of radii R and 2R, are2.ywlfc-sd)i released simultaneously from a tall tower.cs. f2-id )ywl Which will reach the ground first?

  When a small spherical rock of radius r falls through water, it experiences a dcx-0 v,2n x,hd(idmfbrag forcei,-vnb2f (dxxd 0m ch, $F=arv$, 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 pi mj6/nr5v4rnhpe? That is, if you made a 10% change in each of the quantities below, which would cause the greatest change in the flow 5/j 4nrvrm 6hnrate?

  Two horizontal pipes are the same 0, )igse oy 2el2ntt0r(5 tszklength, 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 t0ry(etet25gko,2) nlz0i ts she 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,.uaa;/5x7c3rseso-u:a2z dhkuq gq + but pipe B is twice as long as pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure diasz +uu. cku o5a 27res x:;qg-/aqhd3fference 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 t0ggr-9x9 ukuf6ihwa 3 astes greasy. This "greasy" taste seems to be associated with oil spreading out all over the surigw6u r9u- x3g9kf 0ahface of the soup, instead of staying in little globules. To us "physikers", this is readily explained in terms of

  When a tube of diameter d is placed in water, the water rises to a height h.v c5/g2um2ra:u*ngsiv(sx* n If the diameter were half as great, how high would the wateavv 2s /imr (gug5 n:x**us2cnr rise?

  Certain insects, such as the water bug, are sufficiently lightweight that 6r8vk0f: z 8s /mheceothey can run on top of water without breaking the surface tension. W 8rh f60ekz:sc/ov8 emater 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 weight of bug B?

  Certain insects, such as the water bug, are sufficiently lik x6u jrj 3shbo/*(yy oza)l63ghtweight 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 bugo63yu)/6lr *3jxab j khz( osy 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 cydj x9ljg shd 9cw. cs89. -bj160gprjm x 4.00 cm has a mass of 30.0 g. What -h9 10ysj jwcbjxr6l p .ggc9s8d9d .jis its density?

  A liquid has a specific gravity of 0.357. What is im:bc:yn ri :,jts density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm. What is theq9/kid u: /.l-vpai 0j0nl lvea sjcpu.23 on: maximum pressure it can ul / q0dvupnn::.v9-eopk/al j0l2 sj cai.i3exert on a horizontal surface?

  A person weighing 90+mrun l h:6x1l0 N is standing on snowshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a subm4g-uu mb) -hxf 9onkw3arine withstand at a depth of 120.0 m in the oc-wux) 9kh34nfm-gb uoean?

  A circular window of 30 cm diameter in a submarine can withstand a maximum forcm;7* c 8ruz b+votdxz-e oducx7z8 m bo*tzr+- v;f $5.20 \times 10^{5} \; N$. 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 absolute pressure 7m+k b)jjcwqhh89 .((xo pq axis 300 kPa?

  What is the gauge pre (g5trh( .hfslssure at a location 15.0 m below the surface of sea? (The denf(gh 5rt(l h.ssity of 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? (T1e 1,oplcmmk 3zz*h7x* 6tvv the density of s hpzt* m1t6*x7z3,clkvov1 emeawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machine. The small pis y,g+eh 6qkdi s870fzxton7q0y gkf 8s+zhe6dxi, 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, the small pistlhgvz )t*f j.7gjn4z.on has a radius of 5.0 cm and the large piston has a rad )j.vfjlz g4t7.g*hz nius 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 be lifted by a 25 cm di is0 s sj0)pebbw)uv)2 qri**rameter hydraulic piston. What force needs to be applied to a 5.0 cm diametp0))b*2vjiws q)s riu *brse0er piston to accomplish this?

  The small piston of a hydraulic lift has a diam9hbajk,pz-n3 (j7 lkveter of 8.0 cm, and its large piston has a diameter b (3ajzplhjv-9 n7k,k 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 and 30 x8(pg- lhc 0.(z wmvhbN in water. What is the buoyant force of the watel.b-xhm0z hvw g(8(pcr?

  An object has a volume ou nx)6+nw;z; biac 5mgsnr q):xm f/6ff $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is supported by a string while subme5wtkfewuzd*;-e6 +c: 3 rflk yrged in water. What is thedk 63 ewtyk le+-c5wfz*fr:; u tension in the string? (The specific gravity of iron is 7.86.)

  If the density of golfg **hy e8tm.b5.lis wd 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 (densitf8 dme tf tr(3;vrv1*qy = $7.8 \times 10^3 \; kg/m^{3}$) 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 immersed in wat l*m-6jtm8:ahjc:.u lazr8ki er. What is the specific gravityhc:8-m6tl rk. j:ilmaa* uj8 z of the object?

  A container of water is placed on a scale, and the scale+c97 ho ylvsb8 reads 120 g. Now a 20-g piece of copper (s9b8o +ys c7vhlpecific 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 ethkh fo 8d*bjbpbd/354 (wr: 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 2.0f 9w9 gtwy2ii- cm will just barely float in water. What is its masy wi9twgf2 i-9s?

  A rectangular box of negligible masshab)o/te r h69 measures 5.0 m long, 1.0 m wide, and 0.50 m hig9rb)/hhae t6 oh. 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 surface of the water. The k .oo:sprw* rb3,meh, weight of the displaced water i,r ,rs*o.k3:b w omhpes 2000 N. What is the weight of the object?

  A solid object floats in water with three-fourths of its volume beneath thv6c01xb 4iia su) spc)v pg45ce surface. Wh xs 0cc461bvs iaupi p)v)gc54at is the object's density?

  A 200-N object floats with three-fourths of its volume bm0j,u-8x c ax ir( cnr/jm::mt1g/rh meneath the surface of the tmr,jh/0ri -g:u1xmcmx8 mn(ja /c :rwater. What is the buoyant force on the object?

  A polar bear of mass 200 kg stands 1qhz( fmxz/b7.,h -e/q u6 o,mh(nfhn6zvwjx on an ice floe 100 cm thick. What is the minimum area of the floe that will just support the bear in salhzhwf. h17vb/,(,o u(/mhj6me f- xqnz6n xzqtwater of specific gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pipe of diameter 3.0 cm at 2.0 m/s. Find the flow raton2hmnkl :j yg7(l. k(lvo/+ ze.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. Ther;h/z-caoom /*8i fcbp ,n( rhde is a 2.0 cm diameter restriction in the line. What ibo zdnh8 ofmhpc/*;- ci(ar,/s the velocity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with a presslob5 tbhkb+ g3+2+a cqure 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 h 03 9ehvgv kvy 2 hb4/kw2:hq+wxbd2g300 kPa, if the fou hwbyh3+/4w:de2xvh0h g 9 vkg v2kqb2ntain is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of kcjyu s:ll v3.;ry9u ;0yxo;qa water storage tank that holds water at a depth of 15 m. At what rate will water flow outs3v9 ;u0.x q:l yycjolkru;; y of the hole?

  Water flows through a horizontal pipe of cross-sectional arepmf 9 )1 it-.stob-ufbp0 bxj7a $10.0 \; cm^{2}$ 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 m2erta/+h mrg+jko-q-xv 1 c-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 ther-1-akm+ o/ t2 mj-rqge h+xcv funnel.

  Suppose that the build-up of fatty tissue on e yk6 t)mo ,jgeb180.omvsr,rthe wall of an artery decreased the radius by 10%. By how mur0)omj8m6, v1ye er,btso.kgch 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 gg /tf ou7++bywater. Tube A has twice the diameter of tube B. If water rises 24 cm ugb/ 7fo+yg +tin tube A, 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 capil3tv g ;zm/7)fe.g ksxmlary tube of diameters zmfxv7g )tm/ek.;3g 1.2 mm?

  232

  To what height would water at 0 degree Celsil,29dhq dcr36ls 7zly us rise in a glass capillary tube with a diametqcz97yld lh d, 3sl62rer of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and iswcgq t8+3dt(l8 i .gthe water rises in the tube to 4.0 cm above the level of the pan. The surface tension in tqd3(si 88+t.icgg wlthe 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 0.120 m and width 0.600 m with a soap , 8 t )/9.inmtpkzdaf)9rsfhr1 k9rhnfilm formed within its confined area. If the surface tension of soapy watrftkm9hnp d1/ki.f 8trz9s h nr)9),aer is 0.0260 N/m, how much force does the soap film exert on the 0.600 m side?

  An adjustable rectangular .ykm3v nk3lp hg./* inframe 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 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 svn hgik/ l*nm3k p.3.yide so that the frame is 12 cm square?