The three common phases of matter are hyp;d3hyj 8k5

  Density is

  Substance A has a density o9l/: ye.3;b wotvyuuef $3.0 \; g/cm^{3}$ 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 o )cgf;d ):afoof pressure?

  Consider three drinking glasses. All three have the same area base, and all thv zw.hf4z:,n3ypvibxmxkan 9j *u5; 5ree are filled to the same depth with water. Glass A is cylindrical. Glass B is wider at the 5npz4*f 5vmb9 kxyz,wnxa.j: h;3vui 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 pr*j af8m xsp/2,yje -jsessures inside and outside a tire called?

  When atmospheric pressure changes, what happens to the absolute pressure atdsm-l 4dc+2u s the boc+4 sld- 2dsmuttom of a pool?

  You are originally 1.0 m beneath the surface of a pool. /+s9+ del w1awvwup6v If you dive to 2.0 m beneath the surface, what happens to the absolute press sp w/w69+luwdv e+1vaure on you?

State Pascal's principc*fik3(i x4q.xt-tvd le.

State Archimedes' principle.3qit*8xko0rekuj m e s* +lec6f581lg

  $50 \; cm^{3}$ 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 ag /ezwd*ow d+k8):8t yra hg(vnd deeper into water of constant density, what happens to the buoyant ftdo ggz+r( :k*8yv) / eh8awwdorce on it?

  Salt water has greater density than fresh water. A boat floasog pt.lk3ox w*0riu:w+73sx ts in both fresh water and in salt water. Where is the buoyant force great+wlkrti3s:xo u7g3s.0*opxw er on the boat?

  Salt water is more dense than14wdmg-e5 q xg fresh water. A ship floats in both fresh water and salt water-4xge m wqd51g. Compared to the fresh water, the volume of water displaced in the salt water is

  A steel ball sinks in water but floats in a pool of mercurmop:13e7 ydzp1ev4y ay. Where is the buoyantpzdp7 3y4: m1eeavyo1 force on the ball greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right ne; (crq*ddqj+kfocam. jq03 f1 xt to a 10-kg piece of lead. Which has the greater buoyant forc1c ;*k ado0+.mqrjfq3cd fj (qe on it?

  A piece of iron rests on top of a piece of wood floating in a bacuzlnaq0a+ c -ov h wfv0/*2nm8,j pc:thtub. If the iron is removed from the wood, what happens to the water level in the lwq0v0 *c-haazmvjc,2/uc p n+n8of:tub?

  A piece of wood is floating in a bathtub. A second piece of wood sits on t01rq uiyh5 *p9hpvnf4op 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 w4pp*h 1fhv0i n urq5y9ater level in the tub?

  Water flows through a pipe. The diameter of the pipe at point B ggu0.4wz0tlyfw 1i4wis larger than at point A. Where is the speed of the water greater?4100u f.itwlwgwzyg4

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe widens to twicz)z+sbq29rpt+ b )zdc e its original radius, what is the flow spez2z+r9 )d+ zp )csbqtbed in the wider section?

  An ideal fluid flows a nx .slri4t,vxj7: )(jvw o7jqt 12 m/s in a horizontal pipe. If the pipe narrows to half its original radius, what is the flow spjjj4rov(wx. 7qv xt7) ls,n:ieed in the narrower section?

State Bernoulli's priwy 9wo1-xtv 2befvyygy2 k2 t6s67 z(snciple.

  Which one of the following is associated with the law of conservatio7gu .mf5x34tpk ;eexnn of energy iee k.fpu3 txn4g75mx;n fluids?

  As the speed of a moving fluid increases, the pressure in the fl4guv a) ,f7+4uww3 tf nv3gfkvuid

  Water flows through a pipe. The diameter of the pipe at point B is largerh/g7laeg.:os:q+w4.r d h cij than at point A. Where is the water pressure greal: h7ar4j wq ./s.ih+:dgg ceotest?

  When you blow some air above a paper strip, the paper rises. This is becauh.uy ekv(:8fxem 1583oet gg wse

  A sky diver falls through the ay;0e* qi eks yv7q :rchj*dg()ir at terminal velocity. The force of air resistance on him isy7qev y )gh0 *k*:;q ierd(scj

  Two Styrofoam balls, of radii R and 2R, are released simultaneously fcvs- 7zokbl fx6u s:dug;/5(vrom a tall tower. Whichvgdoxz;7u6/kuf s-s v c l:5b( will reach the ground first?

  When a small spherical rock xfv/ ky/62 y1:yid18p2m bpyglpkn;r of radius r falls through water, it experiences a draf;b8v2ipky/ m1y2/grxndpy lpk 16 :yg force $F=arv$, 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 o*lk9e6tj acyc km:; r ..d2pkkf fluid through a narrow pipe? That is, if you made a 10% change in each of the quantities below, which wo;cy kackler.j 9k. k*dp6m:t2uld cause the greatest change in the flow rate?

  Two horizontal pipes are the same lengtczxanq-kl38 c (ncx4-h, but pipe B has twice the diameter of pipe A. Water undeq-c 4a8nnk3ccx(z lx-rgoes 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 tw .uv dova*:hs4ice as long as pipe A. Water undergo vouav .hd4s*:es 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 is the flow rate in pipe A?

  When soup gets cold, it often tastes greasy. This "greasy" tasted/.)okoiamg 4b0ba1l seems to be associated with oil spreading.i1 4od)gb0/aoam bkl out all over the surface 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 ihs62ros8 b r*on water, the water rises to a height h. If the diameter were half as grea* r2 8rssho6bot, how high would the water rise?

  Certain insects, such as the water bug, are sufficiently lightweight th(u8 qo klmo:: r+jukwua)ia(9at 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. or+9i(j u:q a uua8(klmw:o)k 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 lightweight that th;5ybuz a wg1lht t9r*7,icwlk 72q0 hdey 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,l t rt;wik 7b1yu0 ,qw7ghclzd2a*9h 5 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 dimensioerlvj:2+g lswxxp;3bt n )( v;ns 2.00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. wl xbtgv+:)l;(2j rx3nsv; pe What is its density?

  A liquid has a specific gravity of 0.357. What is itsb*2c6g9q z. gz+.9huces1 4pypclfub density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm. What is thd:ux37,jvt .nos4:g(idycf sbz d/3 be maximum pressure it can exeft,/j sbcbs(ddyxn d.o: u374zv gi3:rt on a horizontal surface?

  A person weighing 90 yyrxxy: n,h - 2s3s;n8xh8jou0 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 submarine withstand at a depths.mzslv**dfp wh3;k4 u7dr o f+dc6g8 of 120.0 m in *doud3sw6.gh*l+zmsp 4 rf7;c8vd k fthe ocean?

  A circular window of 30 cm diameter in c k k,k)ijd/rz0t9.cd a submarine can withstand a maximum force9r0zck.k/,td cdj) i k of $5.20 \times 10^{5} \; N$. 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 is 300 kPa?3zj9t pypc1h 2

  What is the gauge pressure at auqinp x jgu/-bf7:c;, location 15.0 m below the surface of sea? (The densiuugij/fpx ,q7;nc:-b ty of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pkd( 8k j/fmgfx94(fw oressure at a location 15.0 m below the surface of sea? (The density of se g/(k9 8kf ofjmw(4fdxawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machine(v6 e,s1f fcf8sb m2ps. The small piston,epv8fsc 621 f(b ssfm 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 piston has f lb8.z,chsto3c9s1g a radius of 5.0 cm and the large piston hh 9. stc,8l1fsozgcb3as 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 piston?

  A 13,000 N vehicle is to be lift)lj:r1spyk oxw34b;8a t k)zb ed by a 25 cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm diameter piston to accomplishy1rks tlp:wzo834ja b;b)x )k this?

  The small piston of a hydraulic lift has a diameter dcu/2qh;8fzw of 8.0 cm, and its large piston has a fc;wz/u q8d2h 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 ai e:w)pss2ep8n k: rjzjn7d0x9r and 30 N in water. What is the buoyant force o87pwxsrj:n 0 k) npzsdj:9 2eef the water?

  An object has a volume o/+glb3l u7q9f4 hxgbkf $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is supp lm;+b(.mf8wai60axzl 5xp v7t6 gxyv orted by a string while submerged in water. What is the tens avt6gz+lv pixafx57(;myl.m 8 x6w0 bion in the string? (The specific gravity of iron is 7.86.)

  If the density of gold0npn450f cqe x,foz1q 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 (density = t 8k,p3v jxij1$7.8 \times 10^3 \; kg/m^{3}$) 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 wate*gynm5kx-5 zl-3q em kr. What is the specific gravity of the objec mne y-qkmx z35-g5lk*t?

  A container of water is placed on a scale, and the sca5 vz28 fndyer:u+o a;ale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a t2 e8uf;ar az:vdn 5+yohread 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 anh*bbz db- vs5** j6u.a yokq5n*k/kddd 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 wf,n3f:2ixq xfloat in water. 3 ffwni2 ,xxq: What is its mass?

  A rectangular box of neglit lphbdp 2 jk(.hw9v(2lt)+bygible mass measures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be v9.bykh(djt w)b 2+t(p2 hlplloaded 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 voluuy0u u(+(1-nbg hs otxf8e 1slme beneath the surface of the water. The weight -1gusoux8s 0h+ efnt (ybu(1lof the displaced water is 2000 N. What is the weight of the object?

  A solid object floats in water with thhy d2y.zl,k/ mree-fourths of its volume beneath the surface. What is the object's /2y dkyl,hm.zdensity?

  A 200-N object floats with three-fourths of its9floo wvbh(t79 p lm :lk,1y3r volume beneath the surface of the water. (ym 3ol9l 9hwlkrtv ,p:7f1boWhat is the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What is the minf0r xfwtm/o .ad u6.1nimum arertd .wmn.o/0 1x6ufafa 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 pipe of diameta8v0tocrdk 0g7n8 ji 39v,iajer 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 2jl:v(gmg 4f,w .0 cm diametel,f4vw :g (mjgr restriction in the line. What is the velocity in this restriction?

  Water flows at 12 m/s in a horikymklbm (c1 ( cf6wz8/zontal 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 i ,h v1mk3ljh*,k 9tz76emzi1 ewxrt1ot take for a pump to supply a drinking fountain with 300 kPa, if th v zeomtk1m,h*1rj1w9lt,zi h3e67kx e fountain is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottocwxlubbsn )1t 0 ks6i: tz,*iy, 6h,*txiky5 qm of a water storage tank that holds water at a depth of 15 m. At what rate will water flow outtzn06 sb:5kwit6h xxlsky iub y,,* qi)t1*,c of the hole?

  Water flows through a horizontal pipe of cross-sectiopzjme qm ) ul0yi,rl*74x5(i fy6oz 2bnal 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 lo26nkr 0jrowok;z 6i x479ilebng 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 6 r0x 7i on4klekbo6ri9j zw2;the upper part of the funnel.

  Suppose that the build-up of fatty tissue on the wall 1u dw6x 101fzkaddbab rd 0p94-kzy m(of an artery decreased the radius by 10%. By how much would the pressure provided by the heart (r- 06kdd04xw9 1pdbkb ad y1azfumz 1have to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of waterrcij0 (d7phdlh6uw;-. Tube A has twice the diameter of tube B. If water rises 24 cm in tube A,7h-h ildcj rwp0 ;ud6( how high will it rise in tube B?

  The surface tension of j xcz8m:9x)ve.9pyj pwater is 0.073 N/m. How high will water rise in a capillary tube of diameter 19c x:) ymz89pjxp.jv e.2 mm?

  232

  To what height would wat mez75-io j1pxer at 0 degree Celsius rise in a glass capillary tube with a diameter-m 1 5eoj7pxzi of
0.50 mm?

  A narrow tube is placed verk ; u)cw z(bq(0s/qvtgtically in a pan of 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 value by the addition of some soap. What happens to the height of the liquid column i; s0vkq(zb guc)( w/qtn the tube?

  Consider a rectangular frame of length 0.120 m and width 0.600 m with a soapyc7ub2 ; xb8ew film formed within itsbb27xu e cwy8; confined area. 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 frame hgt5r+.s1ktfik2rvp ; o14xx l as 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 wat5if+.;v1 s pxrlgok1k2t4t r xer 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?