The three common phases of kpw k-)7 xtx0jh6f.jpmx zf6 (l-0hhomatter are

  Density is

  Substance A has a density of b7quc/d0 7*gmgwxkh+$3.0 \; g/cm^{3}$ 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 icl6 d8c1lf9m db7dt5l s not a unit of pressure?

  Consider three drinking ok:/rjmskt;o q3 ) 3j5pf.cha2wki-rglasses. 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 the greatest liquid pressure at the haw :.jq)-skmo; io 3c35kkf rt rj2/pbottom?

  What is the difference between the pressures inside and outside a t nt) *sh.g5r em)yu54j sg9jt8nbpn6 lire called?

  When atmospheric pressure changes, what happens to the absolute pf9a- 0j 4f*rt1ivr6uudo8w) be3i2 r xm6 ymzxressure at the bx-i6uy b9re*r1m6m ua3xvwr)ft 4 2 ofd8z0ijottom of a pool?

  You are originally 1.0 m beneath the surface of a pool. If you+ad:cl2 javz6mo r, *ro9m6cy dive to 2.0 m beneath the surface, what happens to the absm29 rv a :r66mzlc+*,yoodcajolute pressure on you?

State Pascal's princilgl s q,4om5e/w),lkqple.

State Archimedes' principlem.v qi;ebx2lh. ezy q6tj2lytp(3l; jk3mw(9.

  $50 \; cm^{3}$ 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 anav.bb-nx9)peed,- mcgy0;ue d deeper into water of constant density, what happens to the buoyant force 0;ben )-xmcg vp.ybeae-,9d uon it?

  Salt water has greater density than freshqu;u9.z3*sq ( zho szn water. A boat floats in both fresh water and in salt water. Where is the buoyant *3;.zu h szs(9 qnzuqoforce greater on the boat?

  Salt water is more dense than fresh water. A ship fl*7lz/o o7yxgpu5zw8 t+y9 tzy oats in both fresh water and salt water. Compared to the fresh water, thez*t/89ly uwt7o pg zoy y5z7x+ volume of water displaced in the salt water is

  A steel ball sinks in water but floats in a pool of mercd7j nteqp 0 : m8)dto-.a6qwipury. Where is the buoyant force on the 8- q)7 ni0:jppot.wda6tqem dball greater?

  A 10-kg piece of aluminv9tf gs-wkc,* um sits at the bottom of a lake, right next to a 10-kg piece of lead. Which has the greater buoya9fkwgt*-,c v snt force on it?

  A piece of iron rests on top of a piece of wood floating in a bathtub. If the irz:s 88xp;a;u oeivi.ron is removed from the wood, wh:ixi.8z;uae o8s;vp rat happens to the water level in the tub?

  A piece of wood is floating in a bathtub. jcsmdoy xhc+ ;153 nei*b9p1e A second piece of wood sits on top of 5bed 9e;x+ysc*p3omhcji1n 1the 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?

  Water flows through a pipe. Thev rnmsv s: 5jyhy/6:5b diameter of the pipe at point B is larger than at point A. Where is the speed ofsy5/h:brjnv v6 ym5s: the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. Ifed bj+sh74 g0k the pipe widens to twice its original radius, what is the flow speed in tbh s70d+j4 keghe wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If th dqg;8esqy 7)n 9c5izde pipe narrows to half its original radius, what is the flow speed in the n95nyqdcg)d qs zie ;87arrower section?

State Bernoulli's principhns ejz3m2 ) 0,pw16kuiiay2yle.

  Which one of the following i(zhq((l 2m*gd; o+obe+ xjktis associated with the law of conservation of energy in o(+m2k(d(o +gbitqxl j hez; *fluids?

  As the speed of a moving fluid increases, the pressure it z +)*hv4uq(-7s yxcyeixat*n the fluid

  Water flows through a pipe. The diameter of the pipe at poinhn i2-t w +2h ,rza;z4ogk9fxdh8(n hdt B is larger than at point A. hzat ,8+( iow2h2h dr 4 x9dfn-kn;gzhWhere is the water pressure greatest?

  When you blow some air above a paper strip, the paper rises.wtnw3 yn0a2a3 ;8 awu rg2qny6:v(b5yipkw p8 This is because

  A sky diver falls through the air at terminal velocity. The forc.9 wa jww1(upge of air resistance on him a1ju9.w(wp g wis

  Two Styrofoam balls, of radii R and 2R, are released simultaneous,ytx6t*fb y3 sly from a tall to f,t sy3byt*x6wer. Which will reach the ground first?

  When a small spherical rock of radius r falls through watexv8ep/uh+*h*mby3cp r q sy(0r, it experiences a drag force sx8rp0h e3 mhby/*+ *uyvc (pq$F=arv$, 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 yw+;r d b e6bswp/(o(uhj3i9y narrow pipe? That is, ihbry( w s/wdey;o9 p6i+bu(3 jf 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, cq phd 4pp:3ol(cxqk 2u0j4:pbut 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 isu2l (p qcpxh4op3k :jc4:0pd q Q, what is the flow rate in pipe B?

  Two horizontal pipes have the same diameter, *e3svwj;e(p fdf24q9yp/ wgvbut pipe B is twice as long 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 in pipe B is Q, what 9gfy(vpje43f pvs wedq ;w*2/ is the flow rate in pipe A?

  When soup gets cold, bf 8jpmd4u3-w it often tastes greasy. This "greasy" taste seems 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 r f pm8ud4bwj3-eadily explained in terms of

  When a tube of diameter d is placed in water, the water rises to *t+uw6p mf trake) +t;a height h. If the diameter were half as great, how high would the water rise?emt a;tp+w)k u6*ftr+

  Certain insects, such as the water bug,3z ykc()by)lj3 (ejuf are sufficiently lightweight that they can run on top of water without breaking the surface tension. Water bug A has weight W. Water ec 3k(y)3 )zjlf(uj bybug 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 watex9,f4 s:cejp gr bug, are sufficiently lightweight that they can run on top 9j cx:epsf,4gof 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 force on the feet of bug B?

  A plastic block of dimensions 2.00 cm x 3.00 cmk:)oq)c8h)wm 0sz0f b gti /ce x 4.00 cm has a mass of 30.0 g. What is its deng00e mosz 8cftk)qc/) bw:hi)sity?

  A liquid has a specific gravity of 0vsa0z 6r1n 7dn.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm.s/ smvxhpx+:nc4v0 o a1vip 32 What is the maximum pphsn csv/pv mvia01+ o3x24:xressure it can exert on a horizontal surface?

  A person weighing 900 N is standing on snowshrldpj./ ; hhs/oes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (a+pvsr2/q(e nusft;o1bsolute) must a submarine withstand at a depth of 120.0 m in1q+(2t spnu /;ovsfe r the ocean?

  A circular window of 30 cm diameter in a submarine can withnh;p7r v9uh9gstand a maximum force of 97;hur pv9 gnh$5.20 \times 10^{5} \; N$. 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 press82mqnt xtw.a, ure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below the surface of sea? purj6rki gg e509a4 (qf/8v+ jl/wjtj(The density of seawater jf wv(9a40qepri5/t j6 g+jk/8lurjg 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?hraj 3 d4rpk p3kf:.c2 (Tfr 3hd:a43r jpp.2kkc he density of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machine. The small*em.d jepjf/x z75 +ssuiws3 ) piston has a 5ijs j+ssxz/ edf. )*up73wmerea $2.0 \; cm^{2}$. 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 cm and the lar s3y dyq0j, vs (qdsqoiv0y4:to/a-q;ge piston has a sya3o0/ t;:q ddv4qv sq jy,(-sy0qo iradius 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 tof2ftq ov98 9pq be lifted by a 25 cm diameter hydraulic piston. What force needs to be applied to a 5 pv9q9ftfoq8 2.0 cm diameter piston to accomplish this?

  The small piston of a hydraulikmr-aegdya npyvq,m 7zy yp2wz*lh y) , 1:40/c lift has a diameter of 8.0 cm, and its large piston has a diameter of 40 cm. The liftymn *:,p lpy /e47y1wyz) haq- g20md z,rvkya 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 in3 xapj 0:cj7g)c z( 5ubrttbb. air and 30 N in water. What is the buoyant force ob:at.7jb) c cbpz xgjt5(3u r0f the water?

  An object has a volume muk oa3 zs5en78xw(9 xof $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is supported by a stringtucq ms h2p)0kc(f*q ( while submerged in watecqk *)hp(u 02tqsfcm(r. What is the tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gold /g;jw i*p8qix wyq;dx+xr :o) 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 (du;17w0hsw ;wjfqk c /zensity = $7.8 \times 10^3 \; kg/m^{3}$) 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 i cix mfec)8 )1nhzuojab,f9(8 mmersed in water. What is the specific gravityz)x mj 8c,u 1ibo9hencf fa)(8 of the object?

  A container of water is placed on a sgd.+44opvd/lb fq jf.cz ojg p47drp)1j-e 5c cale, and the scale reads 120 g. Now a 20-g piepc5 / bj4l4z jfd.7+r jo)pv.e q cg-odp41fgdce 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 mass of 1.0 kg and dencmn y5cacz.27uejhirn, cpu+-p(de ez..2u9 sity 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 w/ut 19bhs las +bhfh1)ill just barely float in water. What is itsf +ub1 altb1 9hh)hs/s mass?

  A rectangular box of negligible ma8r 3o sci.bpcwl0nom:b:,6 xass measures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be l ac0:rm6.oboxlwn ib38 ,c :spoaded 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 thecdcq+/2ohzw2* iga f9.u+ +tizmfj0m water. The weight of the dzmz ia m+9t0q +/w+oufgcd 22*cifjh.isplaced water is 2000 N. What is the weight of the object?

  A solid object floats in w;rv)6 pqvf55pfo+q lrater with three-fourths of its volume beneath the surface. What is the object's);5v6qpf5v+ lf qor pr density?

  A 200-N object floats with three-fmjs; b)f3k5pyourths of its volume beneath the surface of the water. What m j; p)b35yskfis the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What is 9 7i(r stl 6:wkpv.7c/gjvslythe minimum area of the floe that will just support the bear in saltwater of specific gr.y sptkgv w( jr/77cs9lil:6 vavity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pipe of diameter( tmz i2ixd(-k 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. Thehd:sw*yzwzhi ;pkfn5n9 .b58re is a 2.0 cm diameter restriction in the line. What is the velocity in thisdn.h:sz p knb5h f85* i9;zyww restriction?

  Water flows at 12 m/s inyphn7b)5a v x+wy ,z-a 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 purre 9nen r;3;e36bbsn5 z j3dtmp to supply a drinking fountain with 300 kPa, if the fer3 9tjeb33;5 brds;nrn 6z enountain is 30.0 m above the pump?

  A hole of radius 1.0 mm (hmyey4y 9sp: occurs in the bottom of a water storage tank that holds water at a deptpye:m9 4s(hyyh of 15 m. At what rate will water flow out of the hole?

  Water flows through a horizontal pipe of cross-sect-wzkgg..0 ju afk:p z-c7/ ihmw9,lpyional 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 viscog9 .4l 3ek 4z /xr(twtqgutk+fsity 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 lolf4ut9e/w3k g x+4zttrk.g ( qng 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-up of fattyj 1vphui7 m5*.qz/t8vx0 bsd d 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 tohp*.81 7x v dmqdbij 0/vzs5tu maintain a constant blood flow?

  Two narrow tubes are placed in a pan ofooffsdqyvs6 +.1)-uc water. Tube A has twice the diameter of tube B. If water rises 24 cm in tube A, how high w fs+v)co fd1yq -6ou.sill it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will water rise in narcg q1-i)6 xa capillary tube of diaa- 1 inqxcgr6)meter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass c: gz hkoeyy3*v,az .u9apillary tube with a diamevyz . zu*o9,ey :3hgakter of
0.50 mm?

  A narrow tube is placed vertically i7 w +yv1q jmvy1.pts:rn a pan of water, and the water rises in the tube to 4.0 cm above the level of the pan. The surface tej:1rpws .t q7 m1y+yvvnsion 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 lenf(eea bd6t 3ck.ik+.f34xdm6;r lfu v gth 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 N3.m(t u3d+; irk 4acelfxv. kfdb6e6f/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, and is w/u 8env(e wm b kts/c5g)r+*dbuilt in such a way that one of the longer sides can be moved without bursting the soap film contained in the frame. Soapy wat()8ur c5nwkm/tbevd*wes +g /er 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?