The three common phases of mawtp0 uk1bi2 pm4ph.x-me5xzkck h .t e. 8xe/-tter are

  Density is

  Substance A has a density of ycvingp +bk ,mx,h( /8$3.0 \; g/cm^{3}$ 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 isi.d 6w zm7az)ftn h1a9 not a unit of pressure?

  Consider three drinking glasses. All three3487j up x6cgmm lj*eh 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 them8 6u7egjchlx 34jpm* 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 inside an0tg+aim(e(nq+3r;uq(cccj d d outside a tire called?

  When atmospheric pressure changes, what happens to the absolute pressure atf2tq8 0du z.ueo,rx:qci1z v / the bottom o,fx/ud iz1e o cuzt q8q0vr2.:f a pool?

  You are originally 1.0 m beneath the sej5;zs )o8 sn./wi8 wxzr-l;+bm en rsurface of a pool. If you dive to 2.0 m beneath the surface, what happens to the absolute press +es i;wnb.s); 8xrj zso -le/58nwzmrure on you?

State Pascal's principle.-lgdpxp yb8)2

State Archimedes' princ;3fhet20u ;uklt4er( g bun0 iiple.

  $50 \; cm^{3}$ 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 o0k p ;gw/j2hlj0iv* ebf constant density, what happens to the bg;i jvjbpw2 0ke *lh/0uoyant force on it?

  Salt water has greater density than fresh water. A boat floats in both rt 4-kjlz 3 o15ewz:fu2tvb)sfresh water and in salt water. Where is the buoyant force greater on the boktbl4j )-r2z v3tuoe1sfw:5zat?

  Salt water is more dense than fresh water. A vz5c,gsee7u nb,x9 k v3r 6ph5k:og0gship floats in both fresh water and salt water. Compared to the fresh water, the volume o3rgu6 h,sco p 7ee9v5g:,05xn bzgkkvf water displaced in the salt water is

  A steel ball sinks in (h9megbf /z dp7-dsg 660ptus water but floats in a pool of mercury. Where is the buoyant force on tdpzb 9mt-6s(u7pgsd6f /e0hghe ball greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right n75 ei f 4wmn)u1)sslz c/b1dyyext to a 10-kg piece of lead)/d 5 sny1)lzebci1wy um f4s7. Which has the greater buoyant force on it?

  A piece of iron rests on top of a piece of wood floating in a bathtub. Iz 1pm :srdh(-xf the iron is removed from the wood, what happzxrmds-h(:p1 ens to the water level in the tub?

  A piece of wood is floating in alkl7u5gxia r;oho b pg 7igyc 84:7m;clt10h2 bathtub. A second piece of wood sits on top of the first piece, and does not touch the water. If the top piece cih b 7 70l7k;452ayh g :tlglcoox umgpi;1r8is 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 is la hyb q;4a2a,fe7c ii0urger than at point A. Where is the speed hqic;i,afe70y bu 4a2 of the water greater?

  An ideal fluid flows at 12 m/sbqyuno ;,jcb 86;2j;zc( iogv in a horizontal pipe. If the pipe widens to twice its original radius, what is the flow speed in thec;i q,ojn 8 6g zy(vbb;;2ocju wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe nar,bfr6xr 97yi guh au.c;phzxx:v4c 9(rows to half its original radius, what is the flow speed in the narrower section 6 (rcrx v:b9p,u;yh hxau9.fgx7zci4?

State Bernoulli's princ*5lvqt+ .mlsdatw6:i y0i-voiple.

  Which one of the following pi3 ;t5 mtmhttezglc.7/yq+5d/+t rb is associated with the law of conservation of energy i5qy lm/h;t zi.tte+/t mdrt5+ p7b3 cgn fluids?

  As the speed of a moving fluid increases, the pressure ih ic7uzk)xptn f3 m49olw. ( ivhkp-:(n the fluid

  Water flows through a pipe. The diameter of the pip9o9hj w+v r,gx4a :k5chd*6gou5 r2a*mp xsvte at point B is larger than at point A. Where is the water ,ws +g9k4t5 r dhh*r*p9mj o6vavuoxgc2:xa5 pressure greatest?

  When you blow some air above a paper strip, the papernjo ;fb+nk.m svae 3u,8ye7l0 rises. This is because

  A sky diver falls through the air at terminal velocity. The forcblsq,w r+8sggnb 3 81me of air resistq3gs+lrw, ns 18b mbg8ance on him is

  Two Styrofoam balls, of radii R and 2R, are released simutxr ;d1wsn3)5xn2e ocvmi /x.ltaneously from a tall tower. Which will reachn)xs ;tri v/ o1w25xe.mcxnd 3 the ground first?

  When a small spherical rock of radius 8nasrwj g/qxrg5e7(9l*x:edr falls through water, it experiences a drag j/ar(g*q e79wx dlxn:ge r58sforce $F=arv$, 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 pipe? That+,xj; 5hppvurs utb 2; is, if you made a 10% change in each of the quantities below, which would cause the greatest changv;rppx 2,thj+ us ;5bue in the flow rate?

  Two horizontal pipes are the same length,0rwcl-y8ilt , 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 the pipes-trw,li80c y l. 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 p4v2h.b,9jised dtitq:0ac / l( 9b spwvs rf:3ipe B is twice as long as pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference a(bi4ac2f s 9 ,t.ewth/v rjl0bddiq3:9s p:vscross 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 oyss 6;p7oum1yften 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 rea7y o1 myps;s6udily explained in terms of

  When a tube of diameter d is placed in water, the f9m os.w93.fer(f vra water rises to a height h. If the diameter were half as gwmf93afo(s.vrf 9e.rreat, how high would the water rise?

  Certain insects, such as the wat-kfiy s8,xt /a6d pl-uer bug, are sufficiently lightweight that they can run on top of water without breaking the surface tension. Water bug A has wesix-u/ dp6,tf-ayk8 l ight 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 suffici f vd;e15f-hjrhw/f1.n *k c xk1uc/ggently 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 force on the feet f1fhg1-;u/ jc*dh .k fxnv5kwre c1/gof bug B?

  A plastic block of dimensions 2.00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. 5 e/hag6p6pub What is its de5/ubap 66gp ehnsity?

  A liquid has a specific gravity of 0.357. What is its density k +)w*3)uky ittrzms;?

  A brick weighs 50.0 N,qniw lvfimt-1n7) jr/s q, +5t and measures 30.0 cm x 10.0 cm x 4.00 cm. What is the maximum pressure it can exert on a hm )f1wiq+nr tlsni/j, 5t7-qvorizontal surface?

  A person weighing 900 N is standing on snowshoes. Each snows u*5s pih:rjrn;zr i0d8(c t-ohoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (a t /l)ulgcs1 rwa/*b:tbsolute) must a submarine withstand at a depth of 120.0 m in the oceanugast:)c/ 1br w/tll*?

  A circular window oflaxw.;t;vev7czx ,3 2w zn 1gp 30 cm diameter in a submarine can withstand a maximum force owept23x.vc l;7w zn1avz, ;x gf $5.20 \times 10^{5} \; N$. 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 kPacvpmje w+rh )x6a3: :o9s .tpa?

  What is the gauge pressure at a location 15.0 m below vdhu6dz+z)er ksh6 /5-z e2kwp b7 6elthe surface of sea? (The density of s d62+kzs5uhbrdl )he pv67ek6wez /-zeawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a locrb;dmb le0s+auce* 3/ation 15.0 m below the surface of sea? (The density of seawater ism*d/slbrb3; eca0e+ u $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machii v 3mhojv8+:zne. The small piston has area: zvhj83mivo+ $2.0 \; cm^{2}$. 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 ua;j wngl:e2,the large piston has a radius of 15 cm. What f2ln u;gj e:,aworce 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 diameter hydraulic piston. +4fw7grks z2(yrgsg) What force needs to be applied to a 5.0 cm diameter piston to accomplw zkrfgg+s (24sr7y g)ish this?

  The small piston of a hydraulic lift has a diameter of 8.0 cm, and itsbr wv/bxm8am.z7vj49 large piston has a diameter of 40 cm. The lift raises a load of 15,000 N a489bmmj7/v. zxbvwr.
(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 N in water. What is the buoyantgy:r(rfht a gsa.*9 h- force of :a-tgy(fgh*r sar. h9 the water?

  An object has a volume 5hbcoj,7wwmb j :qk) (u v/i-g3swtl,of $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is supported by a strs rfq8) f4vm(y.c 1vfning while submerged in water. What is the tension in the string? (The specific gravity of vm yf1f)n fv4qc8rs.( iron is 7.86.)

  If the density of gold i xurbdz6 *0xez8zvcfc ;-:4ers $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarine (d-hr r4r71 jwxeensity = $7.8 \times 10^3 \; kg/m^{3}$) 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 oh 3.ysy.1g pawhen it is in air and 6.86 N when it is immersed in water. What p. 1ha3y.yogs is the specific gravity of the object?

  A container of water is placed on a scale, and the scale reads 120 g. No t2yiy1va(pg6xz2 oj(/c sd 7dw a 20-g piece of y(2zyd1i / v2a(p6s ctx g7jodcopper (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 density j(fi5w4xf dclqd.tf c2h*d: 5of $2700 \; kg/m^{3}$ 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 float inl lgi8 4h .e89u)agpsd water. Whatl8.es idp la u9g8g)4h is its mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.,9lly5,f25roo v 8u hmlu r0cs0 m wide, and 0.50 m high. How many kilograms of mass can be loaded uf 9o5,v0llym25rr uc,hl8 so 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. Th+iuz2jknw, : vi;k *lme weight of the dim 2v nk z*j,wiiulk;:+splaced water is 2000 N. What is the weight of the object?

  A solid object floats in water with w1f 0(m smiarw6:gbf7three-fourths of its volume beneath the surface. What i16fwf( m: rbigs0wam7s the object's density?

  A 200-N object floats with three-fourths of its volume beneath the suy*dn t9q 0;gu*3az:1hoqaya6ba py c:rface of the water. What iq auyyz*pq 1:bt y: d0cn9a36*ohgaa;s the buoyant force on the object?

  A polar bear of mass 200 kg stands on an iwz ni4:- txe;bx w7b9kce floe 100 cm thick. What is the minimum 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;bni x9wek4xwb :t-7z.

  Liquid flows through a pipe of diameter 3.0 cm at 2.0 m/s. Fi1 :m.prjs,du90m lfq+l a0zbb nd the flow rate.

  Liquid flows through a 4.0 cm diameter0n42md9pl *e kmis hdka:.w(s pipe at 1.0 m/s. There is a 2.0 cm diameter2hleps sm9k:dn d4*(0km.awi restriction in the line. What is the velocity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with-.y/nyg qpd4mz b 3j,aw )hahd5+ )raw 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 sup)+ :nqpss;.sartn-p pply a drinking fountain with 300 kPa, if the fountain is 30.0 m above the - +san:;prs .s)ntqpp pump?

  A hole of radius 1.0 mm occu5v -cw k,fma+3dkcyb*rs in the bottom of a water storage tank that holds water at a depth of 15 m. At what rate will water flow out of tb5kc*c-mw vf, +yd 3kahe hole?

  Water flows through a horizontalbe s8mpk87q1oz/h(u s pipe of cross-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. k7+v6t8m s aim 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 upp8v+im7ksa6mt er part of the funnel.

  Suppose that the build-up of fatty tissue on the wall of an artery decrease4 d5jeg1 josl-5k t/gbd the radius by 10%. By how much would the pressure provided by the heart have to be increased to maintain a constant blood flow?oj5l k-/ jte4sb51g gd

  Two narrow tubes are placed in a pan of water. Tube A has twice tap )a*7ooahr7he diameter of tube B. If water rises 24 cm in tube A, how high will 7aa*arh) o op7it rise in tube B?

  The surface tension of w* :ff :g1bdjhoi qcz1/ater is 0.073 N/m. How high will water rise in a capillary tube of diab:q i*1/d1h: zfcojgf meter 1.2 mm?

  232

  To what height would water at 0 degree Celsiprn1dc7o0 bmzb 7( mdl:x5 ez/us rise in a glass capillary tube witr 1m pm7 c7(lb/0:nozbedd5xzh a diameter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and tbtxy)(mcw3c0 he 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 tby cct3xm(0 )wo 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 sj v/ lrg( pve 5u1,,gh9ykwpj8yv 3;zfilm formed within its confined area. If the surface tension of soapy water is 0.0260 N/m, how much force does the soap film exert on tl p(9vw51 pjeugsvry;y ,h k3g8/jz ,vhe 0.600 m side?

  An adjustable rectangular frame has fntx,m 9) kdk+k .x-rllength 12 cm and width 5 cm, and is built in such a way thadk n)rt+xx 9kkl.fm ,-t 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 side so that the frame is 12 cm square?