The three common phases of hq8( nr/)uyx vmatter are

  Density is

  Substance A has a den/m*xk wtny 1.skfyo9+ab flo g0 .5oq7sity 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 of pressurfb/po; 7+j8*6qv q )zwuooogye?

  Consider three drinking glasses. Ai(:)dx5m 2dz iefbq1*t-eidif o 90ldll 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 tii(edx1-zi 02tef5d fblq :*o id)d9 mhan 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 skb3h (cbr k+(inside and outside a tire called?

  When atmospheric pressur*-.m n 6llx lu;vh -uko*/ftzg-j.bawe changes, what happens to the absolute pressure at the bottom ofm .;h/j ugz6- -x-l*lfto lbnvuwk a*. a pool?

  You are originally 1.0 m beneath the surface of a pool. If you dive to 22*)d6 ldhtbyq.0 m beneath the surface, what happens to the absolute pressure on )q2 h 6yltd*bdyou?

State Pascal's princn+e38 kr0:w t +fmlkduiple.

State Archimedes' principl;8e69* her 8(vleoodxe (saklv,w 4axh+zfl: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 deepucd8 b9f me/yqho4.-c er into water of constant density, what happens to theh4fe9 8y mqcobu -./cd buoyant force on it?

  Salt water has greater density than fresh water. rmld,(3ras(g o.7,mu f9x n: kklo1 mb A boat floats in both fresh water and in salt water. Where is the buoyant force great d,r l3nb.1u oa(7mm,(lskfr x:gm9koer on the boat?

  Salt water is more dense than fresh wdm pxy.iw/w8 1,z1tdkater. A ship floats in both fresh water and salt water. Compared to the frw8pdk1i xy1 ./zdt w,mesh water, the volume of water displaced in the salt water is

  A steel ball sinks in water but floats in aj81ran5*dn sw pool of mercury. Where is the buoyant force on t*5 1nan8wdrj she ball greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right next to a 10- 38td)vwv 17vz/ge j t r+8m;cndwcikdp0y9x/kg piece owpvv+d/79 x dt;mtgn1kjwycc v8r380de / )izf lead. Which has the greater buoyant force on it?

  A piece of iron rests on to 8nf7 4 u6jfu;vlrc8eop of a piece of wood floating in a bathtub. If the iron is removed from the wood, what happens to thev 6j8 ru ;4onclfefu78 water level in the tub?

  A piece of wood is floating in a bathtub. A second piece of wood sits on topk+k t( ,muhspx89j9tj of the fi,th9ju jpk 98tkx+ms (rst 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. The diameter of the pipe at point B iw+hx jn0legd6f,) v+cs larger than at point A. Where is the spjvfew,dh6x ++)n cg0leed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe widens t 5nx2o4)rqcag o twice its original radius,2a gn)xq o5c4r what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If thevzrr- db3a(d/ pipe narrows to half its original radius, what is the flow speed in /r b3zavrdd(-the narrower section?

State Bernoulli's principle./)pqets*u aw7an1 s 4z

  Which one of the following is associated with the law of conservation oav:(cv;.34vrbpu c r zf energy in flu (v4;3v rbu:p.c rvzacids?

  As the speed of a moving fluidx7v. z:fhas; i increases, the pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at poi f-)7q ull sdb94wfjx0nt B is larger than at point A. Where is the water 7fq9j0ll -bwd4 suf)xpressure greatest?

  When you blow some air above a paper strip, the p :ekknx koqf5dr.sl *0u5a,1oaper rises. This is because

  A sky diver falls through the air at terminal velocity. The force of air resistk/uri2g 7 0eyxance on himy7g0rek xui2 / is

  Two Styrofoam balls, of radii R and 2R, are released simultane78fhifkiq2e,;b +w jw ously from a tall tower. Which will reach the ground first?f2b +q, wwki7;f8 ejhi

  When a small spherical rock of radius r falls through water, it experiences a lkugf1yl og0i) 9.hu 0drag lyfg0u1 i.)o g9hu0l kforce $F=arv$, 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 fl8e;wdk68x* :v eq9mqtn,-vc2ktau v buid through a narrow pipe? That is, if you made a 10% change in each of th:wav69;qdnme* 8e2k-qvtv ut8 k, bcxe quantities below, which would cause the greatest change in the flow rate?

  Two horizontal pipes aree1k t1eqa0g )f the same length, but pipe B has twice the diameter of pipe A. Water undergoes viscous flow in both pipes, subject to the same pressurek fg1e)q1tae0 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 aseih pbnht z-1w:2cpib wd0w;+11ou:d long as pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure diffppecd zwd +bwin o01h:;b-h2 iut1 :w1erence 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 greas 78ve hm2ets5qy. 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 "phys8 52the7 qsmveikers", this is readily explained in terms of

  When a tube of diameter d is p hiv-p:uj a1ksv1jm;4ruwj kt e:o2 +7laced in water, the water rises to a height h. If the diameter were half as great, how hihwauep-utjj7+j:k:vi r21 s o 41;km vgh would the water rise?

  Certain insects, such as the water bug, ar9-- cb2yk wslde 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 big as bug A, in all dimensions. That is, bug B is twice as long, twic c9ykl2 sd--wbe as wide, etc. What is the weight of bug B?

  Certain insects, such as the watgahgb r e- 3r1ip*.1ecer 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 bottomr*3hgp geac.1e ir 1b- 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 cmqg+hby ;jo d qlgo1j6):/w( jx has a mass of 30.0 g. oo):xb(/jh 1 6yw;+dqljgjgq What is its density?

  A liquid has a specip (4uuo q:don;m+i/egfic gravity of 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm. What isev j /q,:d ztpqo+r4e0w-;k zpe6mmv3 the maximum pressure it vmdvjp:63z4 ,z r qepkewq/otem+;-0 can exert on a horizontal surface?

  A person weighing 900 N is standi2ci 2so+1lf sung on snowshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand at a depth of 1 ze.ejgznpa5 .4-4dvi 20.0 m in th4e5dg-j4pz e zan iv..e ocean?

  A circular window of 3ta0 *2tpof 50m5e sac;f9x2zmz8qcrf0 cm diameter in a submarine can withstand a maximum force of ft2 z*mfmsa cftra855cp;9e02qzo x0 $5.20 \times 10^{5} \; N$. 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 ab/uir5 er ;i3 qq+,qe4yqr a3+i)znli hsolute pressure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below vwbw6)0ka ur+vq1i)oks6 j(9jt ;hx tthe surface of sea? (The densxk +;oa) js 6(tjb1r 6vvwk)qu09th iwity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a locatiy9 xt..wl.r pson 15.0 m below the surface of sea? (Thrtlys.p .9.wx e density of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic maor8b 6dr z3k7hchine. The small piston has areh 3z 7orb8d6kra $2.0 \; cm^{2}$. If the large piston has area $40 \; cm^{2}$, how much weight can the large piston support?

  In a hydraulic garage lift, the smbd* k2r, 6 qs;ufv+itiall 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 lift a car *v2 i+ i;fbdt,rq6 skuweighing 20,000 N on the large piston?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter hydraulickkih x6;oryr*mq:9 ( f piston. What force needs to be applied to a 6f k9r (iy*kox;rqh:m5.0 cm diameter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter of 8.0 cm, 4*u*9cza lffo and its large piston has a diameter of 40 cm. The lift raises a lo4 fa*u9lc*ozfad 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 3a6sqv.em:q j r6ky8 wsrs 96rN in air and 30 N in water. What is the buoyant force of the waa69r:yqr sr sjmq8. wv6sk6e3ter?

  An object has a volume o,ws 1byk13 vsnf $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is supported by 7yqi0 3nq rgb-a string while submerged in water. What is the tension in the string? (The specific gravity of iqrb703i y-gqn ron is 7.86.)

  If the density of gold is f1f0. k7o2flocz+j +h 6ev/xeg0mqs r$19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steecibmr1on(s8f)b- 2 sjl submarine (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 it is in air and 6.86 N when it is immersed in watefo tk2r7bm;f(b ,jx5ar. What is the specific grav ( fx;a7tm5frjb2bo, kity of the object?

  A container of water is placed on a scale, and the scale reads 1yj )r;91 zmr3ys:n+kdz mf5pz 20 g. Now a 20-g piece of rf3;z yzmnpk d+)sz 9:rj1my5copper (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 witj7, )fv / vkyrtjk9ltbj(n(2gh a mass 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 yop7k7lqr0l x8 pwd 155-fy eecm and diameter 2.0 cm will just barely float in water. What is d-f575o leekxq pw0yry7p18 lits mass?

  A rectangular box of negligible mass measuret7a7ed 3q3u ffrma191 2pubuzs 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loadeda mfz ut1u ru3d1pq7b 9a37f2e 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 wit:jedu5 oci,s 7u g4,wlh half its volume beneath the surface of the water. The weight of the displaced water is 2000 N. What is th5g,udu74 :oj lesi,wce weight of the object?

  A solid object floats in water with threel/g d+jm( tvtr1ugv.8-fourths of its volume beneath the surface. What is the object gd8v.u/ 1jv+rlmgtt('s density?

  A 200-N object floats with three-fouii1,yse 8u0aprths of its volume beneath the surface of the water. W,pysi8eai1u0 hat is the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. Wh ;.0e wpvd1 -dyhtyki8f8 mktx29g i,vat is the minimufi8yvi 8 k-ydme v;g91txw0,2 .d kpthm area of the floe that will just support the bear in saltwater of specific gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a qlj 1m*s,,visbfh r;3pipe 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 cm *tzezn1*xwj* r*lg2unl x; 2zdiameter restriction in the line. What is the velocity in this restri*zl1xne*ljg*xzun*wt r ;z 2 2ction?

  Water flows at 12 m/s in a horizojc,c9y6dt;tl li h4,z ntal 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 u68a-1 /ig khf5ma tvkfountain with 300 kPa, if the fountain is 30.0 m above the pum/tuv a mk81- ak5fh6gip?

  A hole of radius 1.0 mm occurs in the bottom of a water storage tank that h z1ymp+doi f1 u;3)6ole -4hv0 tqlufrolds water at a depth of 15 m. At what rat)y 01fo iu- dflq1p3o ;46emu+tzhlrve will water flow out of the hole?

  Water flows through a horizontal pipe of cro dus6br6i5xr 2 e1tw2hss-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 take 21 /:ywedz engto 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 d/ we:gny1ez 2upper part of the funnel.

  Suppose that the build-up of fatty tiss .k9,rskg xob 9-t 3clcy1kfs0ue on the wall of an artery decreased the radius by 10%. By how much would the pressure provided ot s ,c1 l39k.kybk- 90gsxfcrby the heart have to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of water. Tubek buzg.tdm)k3jk c95 - A has twice the diameter of tube B. If water rises 24 cm in tube A, how high will it rise in tube 5tzm bk3c )-ujk9kdg. B?

  The surface tension of water is 0.073 N/m. How high will water rise in5oq7gq 4,.ix3fp s gdq a capillary tube of diameter 1.2 m5sfg 7qqqgx., i43podm?

  232

  To what height would water at 0 degree Celsius rise in a glass capp12pdl1sa;o 3s2 +7a u2kdgf jl gzp+nillary tube with a diame27 a s2pn 2fl3kpdga+g sp1 l1joduz+;ter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and t izlkx6 xf+4)ghe 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 addition of some soap. What happ4kzi+)6xxgf l ens to the height of the liquid column in the tube?

  Consider a rectangular frame of length 0.120 m and width 0.dhrb/t;fsq 1zof yl.4)9w t6t600 m with a soap film formed within its confined area. If the surface tension of soapy water is 0.0260 N/m,;rt4yt.swb61tfz o9l/qhd) f how much force does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cw m r*,.dn)lklm and width 5 cm, and is built in such a way that one of the longer sides can be moved withou*)lnmr .kwl,d t 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 so that the frame is 12 cm square?