The three common phaseald69am pj6 u8 j*o+tgs of matter are

  Density is

  Substance A has a density owt4qbebr (m p7,w:t i+f $3.0 \; g/cm^{3}$ 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 pressuwavztix( /g9of; f qg:ca.) 7are?

  Consider three drinking glasses. All three have the same area base, an+npue .0)vq1kvrf0g 2rng kz;7tqf4fd 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 greau2+0k;1f qn gqvr.kf n)7 egz4vft0rptest liquid pressure at the bottom?

  What is the difference between the rgg; l.hd7dl-u msb( 0pressures inside and outside a tire called?

  When atmospheric pressure changes, what happens to the absolute pressure at the mddg1 +c9-5bn tkp aq0bottom of a pool+-tdd0ck1 amg qn 9bp5?

  You are originally 1.0 m beneath the surface of a pool. If you div3hp wfuxy f)g6y9dk+g x;1my-e to 2.0 m beneath the surface, wg3;hf9 ) uf1wp+mykg y y-d6xxhat happens to the absolute pressure on you?

State Pascal's principlenqc7 /e(mx.lw +9 kcoc.

State Archimedes' princ h8ritwf6fqwv f1a;,:lc9s (( ah(bwpiple.

  $50 \; cm^{3}$ 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 47;fl b2i-qo2/mvq lun p;j pland deeper into water of constant density, what happens to the buoyant f; 2jv2lfpub-; lmio q47q pnl/orce on it?

  Salt water has greater density than fresh watemzmdc 6e+r( yb2t)f ;xr. A boat floats in both fresh water ande26rzmc(+) x;bfmt yd in salt water. Where is the buoyant force greater on the boat?

  Salt water is more dense than fresh water. A ship floats in both fresh watejkul;qa+8z:, okas5iemn b k0,,:h sqr and salt water. Compared to the fresh water, the volume of water dissj,makk:b; ,:l huq+o zs5,eqk0ia n8placed in the salt water is

  A steel ball sinks in water but flo2e1kh* b r waot.(x5xeats in a pool of mercury. Where is the buoyant force onwk52ab hx1t*.( oree x the ball greater?

  A 10-kg piece of aluminum sits at the bottom of 6 fna hxwk(ycz2. cty48 8b4wia lake, right next to a 10-kg piece of lead. Which 6hfw a48bwxckt( 4 c8n yy.iz2has the greater buoyant force on it?

  A piece of iron rests , ryya:z-zka. on top of a piece of wood floating in a bathtub. If the iron is removed from the wood, what happens to the water level in thezy ,r. a:kyaz- tub?

  A piece of wood is floating in a bathtub. A second piece of wood sits on tobevx7i4 . /pbiwo v*cl8;32lzb znti8j dw;o.p of the first piece, and does not touch the water. If the top piece is taken off and placzibj. z . ;no tl; lbviip8boxde4vc2/3 8w7w*ed 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 larger than 2n,fum ,5qwp do 9 nfao:v0v;u7gtb9 wat point A. Where i pn97n tubvm;ofg9,5 ow02 ,ufqad:wvs the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizt.zjz11qo4ya xt: fk6ontal pipe. If the pipe widens to twice its original radius, what is the flowtajo6 1qzt4fz1:x yk. speed in the wider section?

  An ideal fluid flows jd-*0ea 9sqr 7g1 sv;ygx0vehat 12 m/s in a horizontal pipe. If the pipe narrows to half its original radius, whatahr0;0 *sy-qd ge v17jxv9ges is the flow speed in the narrower section?

State Bernoulli's prr 2nj- s7zj1x pe4eih;inciple.

  Which one of the following is associated with the law of conservation of energm+w 5e m(ene36b-o:d x 7ehkmty in fluidsk(n-:b eee6 mho7 xedm+3wtm5?

  As the speed of a moving fluid increases, the pressure in the fls(y 1: rsd(- pkalf:ztt1wj/f * :kmtbuid

  Water flows through a pip/3/73m(m) kkbw*raksw xhxzv2t i 4uqe. The diameter of the pipe at point B is larger than at point A. Where is the water pressure greaw 437xhkzw / a(rmkb2uvkqs *ix )/m3ttest?

  When you blow some air above a paper strip, thy,;ir wikrl9yx/ jp5/e paper rises. This is because

  A sky diver falls through the air y 4(bxr3 )enrjat terminal velocity. The force of air resistance on )3rrj(eb ynx 4him is

  Two Styrofoam balls, of radii R and 2R, are released simultaneousto7 :tvb:6pjl2b aquqws8r, ,ly from a tall tower. Whichsw j6a ,ub8b7t2 ov :prq:,tql will reach the ground first?

  When a small spherical rock of radius r falls through wat du2uz.b:von ap. *;tyer, it experiences a drag forauv;do2uyn. zb t*:.pce $F=arv$, 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 effe55sby+jp g sm)ct on the flow of fluid through a narrow pipe? That is, if you made a 10% change in each of the quantities below, which would cause thgs5 bm+5 )sjpye greatest change in the flow rate?

  Two horizontal pipes0 bwa/7o w rhr42bliyya1y0h- are the same length, 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. If the flow rate in pipe A is Q, what is the fb0hb hrwl 7/iayw2yyr04-a1o low rate in pipe B?

  Two horizontal pipes have the same diameter, but pipe B is twice v0m acg4pz0y1 as long as pipe A. Water undergoes viscous flow in both pi4 v001yg pczmapes, 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 greasymf;y +mqzf ulo i( f*+a(qp1,vi.1pru. 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 uq*rii( f1p+,1y+m p.auzflm foq;uv (s "physikers", this is readily explained in terms of

  When a tube of diameter d is placed in water, the water rises to a uh+)2 ekk;1fgb 7w4kuur d: vvheight h. If vw;hk +b:fku)uku7g 4edvr21 the diameter were half as great, how high would the water rise?

  Certain insects, such as the water bug, are sufficiently lightweighr3 o;uac.a5 yxt 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, twice as wide, etc. uxaa 53; yrc.oWhat is the weight of bug B?

  Certain insects, such as the water bug, are sufficienrlziqmdz0 a(c 82 6y4jtly lightweight that they can run on top of wat(i8 0 zjmr4ydazqlc26 er 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 cm x 4.00sz642imjn(q m cm has a mass of 30.0 g. What is its denn s4 j(6mi2zqmsity?

  A liquid has a specific gravity 8e6)6 gxmdtsxs 0lav:8;gbj gof 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 is thvg)3a.i bdup+v,)ld,t (kl 0nsj m hi9e maximum pressure it c(v 0.9snl3am, vujpitgli,k+ )h )ddban exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each snowshoe hkh z;g*+7 ag;2xnegbjas area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withs)f6*olm x ce,ytand at a depth of 120.0 m in )*mx cl6efo ,ythe ocean?

  A circular window of wkrw(i1m3 x0 f30 cm diameter in a submarine can withstand a maximum force1(fkm3 ixr0ww 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 b sswj3w8fs:r (s..qj)gp9elis 300 kPa?

  What is the gauge pressure at a location 15.0 m below the ;eei4i bgx27i(i h2uysurface of sea? (The density of siexu y4g7;2i2 ( eibiheawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 x(iet sj0/,8wir; s8yja5tb f m below the surface of sea? (The density of seawaterb s t,8yi0jr(iwaet;f sx 8j/5 is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machine. The smt tg.9ofu z 12foz.tt*all piston has area 2oo z.gt9t1t *. tzffu$2.0 \; cm^{2}$. If the large piston has area $40 \; cm^{2}$, how much weight can the large piston support?

  In a hydraulic garage lift, the small pis-e 0kvx-m ;8 olsg p.m3xt0sxpton has a radius of 5.0 cm and the large piston has a radiustx8- xo sxms l.-;3ge0p pvk0m 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 diameter cie6.tnc 7ta.q6iu- khydraulic piston. What force needs to be applied to a 5.0 cm diameter piston to accomplish thi anctitku-i7e66.qc. s?

  The small piston of a hydraulic lift x*pnk*e.l n3,;.7uiiiy e;p)djm uf uhas a diameter of 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a lo3ieu pjlu.7uny,e di**fp)xn;ik;m .ad 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 bj,;ye, h)i +d;g vvizjs*p fj2s1zp, air and 30 N in water. What is the buoyant force of thefj+ ,i;jsjy,v)g2b,*ps ;vip 1z zdhe water?

  An object has a volume of6md.uw5 6mor ci95gfdo8n xt s(i)pa, $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is supported by apve3u2 yz0cu3-g):z4 j/cusowrp a;2+p vim k string while submerged in water. What is the tension in the string? (The specific gravity of iron is 7.k aizw;jv/ 0cc4)g2+up3 3 ou2pveysz rum:-p 86.)

  If the density of goldxdm7z3 mfo)d3g *n+9hq7y ofp 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 -(5t:pexpxq2gl wq 4t(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 i;adk)cs8o *jrt is in air and 6.86 N when it is immersed in water. What is the specific gravity scj* k;a r)8odof the object?

  A container of water is2(8 1bh5blmep ru e0zoexgx40 placed on a scale, and the scale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and lowered ix 0bl812h5pr(exeu b ze40go mnto the water, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum with a mass of 1),q /ott b2l b riaaossf b99u9u:l-y:.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 cm and diameter 2.0 cm will just barely floao; ol 3hei11kzb9y*- /cxofqrt in watbh-9 3;ck1/xoiy q*z rl1eofo er. What is its mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0 m wide, and 0.50 79rupmp- ogt2m high. How many kilograms of mass can be loaded ontp7 up tor-2g9mo 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 ov5 kq9ugy(qf. f the water. The weight of the displacedvf95 (.ukqq gy water is 2000 N. What is the weight of the object?

  A solid object floats in water with three-fourths of its volume beneath the sur* ucg*v+a kz3fj3x4kj face. What isz fjg4*c vuj*ak +k3x3 the object's density?

  A 200-N object floats with three-fourths of its volume beneath r v /(utz+vyl tg08dio8ri3h (the surface of the water. What is the buoyant force on the object?((8il i ot h0ur+ vvgd8tyr/z3

  A polar bear of mass 200 kg stands on an ice flo/ c:*dnifrxaenq:1w /e 100 cm thick. What is the minimum area of the floe that will just support the bear in saltwater of specific gravity 1.0wfd/qn in*a: e/cx: r13? The specific gravity of ice is 0.98.

  Liquid flows through a pipe of diameter 3.0 cm jn vz.)opf0n1z-n 2gbdh -.mnat 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diamla /5x93.. jrayejtg ceter pipe at 1.0 m/s. There is a 2.0 cm diameter restriction in the line. What is the velot.eag /l.j3 y5 rxcj9acity in this restriction?

  Water flows at 12 m/s in a horizontal pipe we:hsoi.9hj9l o88ukxith 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 fountain with 300lkq ,8g qzp.p/24bk57pni0jcs f6pw c kPa, if the fountain is 30.0 , /cpq.7i pqps jgp28kbl 06zk4 wf5cnm above the pump?

  A hole of radius 1.0 mm occurs in the bottom of a waterx7yz11u(ohmhya b -(y storage tank that holds water at a depth of 15 m. At what rate will water flow out a(11 yy7m zhbxoy (hu-of the hole?

  Water flows through a horizacqj -/b+/p o.s a4ukwontal 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 0kxhs.dmg 3 -c7.20 Pa-s. 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 uppers7mhd3. xcg k- part of the funnel.

  Suppose that the build-up of fatty tissue on the wall of an s v1s ;rtuaz);zhs*u.-nke( nartery decreased the radius by 10%. By how much would the pressure provided by the heart have to be increased to mainnzsr.k z1h)an( se*;t vsu u;-tain a constant blood flow?

  Two narrow tubes are placed in a pan of water. Tube A has twice the diameter ousv *:cor i4q,f tube B. If water rises 24 cm in tube A, how high wi:uviso q* ,c4rll it rise in tube B?

  The surface tension oprfsx5: *6o6nin 7sty f water is 0.073 N/m. How high will water rise in a capillaryy x*st6 n5n :os6pi7rf tube of diameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capillary tube wi*.q020s(dooftup pi/bl se+lx*sp c 4th a diametel+t. psop b/q 0fdse*(u*sic 02xplo4 r of
0.50 mm?

  A narrow tube is placed verticallybs1gxs2:8mnjae7 t jpq,5w* m 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 w 5xsn2jaegm:pbm17sq8 t,*j the addition of some soap. What happens to the height of the liquid column in the tube?

  Consider a rectangular frame of len jy iqqi:a(82ggth 0.120 m and width 0.600 m with a soap film formed within its confiqgyqi:(i8 2ja ned 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 has length 12 cm685ypwuga d+n s*shb8 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. Hows5na8ygpsu w8+6hdb* much work is required to move the adjustable long side so that the frame is 12 cm square?