The three common phases oo8 47 6-ggmp finuw*qnf matter are

  Density is

  Substance A has a den,p/oekx onc;5;p v wq7sity 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 m80hsa oqa qej/u g0/iccgo+9i:n -(iunit of pressure?

  Consider three drinking glasses. All three have the same ar+jv ;p,m nilr.ea 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 thannjvrm+i. ;,lp 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 inside a o/vzc oi qw79zba-yy88 *u-wend outside a tire called?

  When atmospheric pressure changes, wfpv6occqs53p vagf(g b((f( 2nso,)chat happens to the absolute pressure at the g3ccs vs5 (g ab( qn2of(6(off)pvcp,bottom of a pool?

  You are originally 1.0 m beneath the mc/q d30pvujco6gofr 7zmw5;)h60i:t ne y e-surface of a pool. If you dive to 2.0 m beneath the surface, what happens ton c0eiw ut);g vhc5ymd6 m:e qr z36-0o7oj/pf the absolute pressure on you?

State Pascal's princnja, fxt.9dr6 iple.

State Archimedes' prine/t x k6qweq4kw3hd30lee11 x ciple.

  $50 \; cm^{3}$ 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 of constant denlo4vreocut psht 25beq4+/46sity, what happens to the buoyant e5v4ph4lq u 4cbos2+to r t6/eforce on it?

  Salt water has greater density than fresh water. A 7g5zgdk6sik5 , x 4ykgboat floats in both fresh water yg6kkgd55,x k g47sizand 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 fresm / a)i bhj7w1yf(ppt:h water and salt water. Compared to the fresh water, the volume of water displacedwb7y1 himfj)t:pa(p / in the salt water is

  A steel ball sinks in water but floats in a pool of mercury. Where is the bu n ale8bi,gr14oyant force on th ,gb481a ielnre ball greater?

  A 10-kg piece of aluminum sits ath 2 ,h+ d jcaiz2*h2aylk:z.nou)/dlr the bottom of a lake, right next to a 10-kg piece of lead. Which has the greater 2c,hl ho:z+2*ya 2 ha i/lk)rzuj.ndd buoyant force on it?

  A piece of iron rests on top of a piece of woyec9cd8z3l zd05d0 jr od floating in a bathtub. If the iron is zd d0cj5lczr0yd e938 removed from the wood, what happens to the water level in the tub?

  A piece of wood is floating in39xdei5x m fj7 a bathtub. A second piece of wood sits on top of the first piece, and does not touch the water. If the top piece is ti9m5d x7j3e xfaken off and placed in the water, what happens to the water level in the tub?

  Water flows through a pipe. Tpfv,+3t jp t+dhe diameter of the pipe at point B is larger than at point A. Where iptt jfpd,+v+3 s the speed of the water greater?

  An ideal fluid flows at 12 m/sa)7ivuvu3 0sd in a horizontal pipe. If the pipe widens to twice its original radius, what is the flow speed in t u0ud7s)a3ivvhe wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe nv a2m2z2tvzvmyh x+)m5 d5ip(arrows to half its original radius, what is them avhx my2dm z522(5 z+)vtvpi flow speed in the narrower section?

State Bernoulli's princiedn* ve* ;:xcwj*uus7a-/ ea zple.

  Which one of the following is associated wizo 22 (jgnth;h+d+ jmxth the law of conservation of energy in fl ojzdgmtj2 h 2+;nxh(+uids?

  As the speed of a moving fluid increases, the pressure in the f0nhjv4 3811v u2icyxzns:bqn luid

  Water flows through a pipe. The diameter of the pipe at point B4( /c7b6s*kg fv5eyi tad df:d is larger than at point A. Where is the water pressure*d/(ic7eg4 y :fad sfbt 56vdk greatest?

  When you blow some air above a paper strip, the paper rises. This is bqdx c kh*+*o)8wxphlab( *yl *ecause

  A sky diver falls through the air at terminal vel8im0mjg qh a:tn42en,ocity. The force of air resistance on gmanh qment482:j, i0him is

  Two Styrofoam balls, of radii R and 2R, are released simultaneously from a ta n(yok;iz95pn ca wtjzk4z/1:ll tower. Which will reach the ground 95;w:zk zaynn c zopitj1/(4k first?

  When a small spherical rock of rada-d3 3snm f8 ad0v,rrkius r falls through water, it experiences a drag forcfr ar8mk-sda3v,03n de $F=arv$, 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 w0my1csl o 0*gof fluid through a narrow pipe? That is, if you made a 10% change in each of wm0o*0l cs 1ygthe quantities below, which would cause the greatest change in the flow rate?

  Two horizontal pipes are th /p;t6 kc5pl+bco8fp -wi8t ube 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 flow rate in u8+6ti 5k8wocbbpcp- fl t;/ppipe B?

  Two horizontal pipes have the same diameter, but pipe B is twice as long as pi hv+s:amark* rz s*qvt0gr8vfaw2)2; pe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the lengths of the pipes. If the flow rate invk*v zf; 02 +s2hw)s qamrta8ra*:rvg pipe B is Q, what is the flow rate in pipe A?

  When soup gets cold, it often tastes greasy. This "greasy" taste seems t m(trev bm:,ngw2-ih9o be associated with oil spreading out all over the surface of the soup, instead of st t im:b-(g29hr w,vmenaying in little globules. To us "physikers", this is readily explained in terms of

  When a tube of diamete,+bcue2*+ mnm ) ugaqnq*c 8bar d is placed in water, the water rises to a height h. Ifm *b)mqu*n c au+ngcea8q+b ,2 the diameter were half as great, how high would the water rise?

  Certain insects, such f sqp,b a9:toylp)iq1 8no:*d1 6sezd as the water bug, are sufficiently lightweight that they can run on top of water without breaking the surface tension. Water bug A has weight W. Water b,ep dto8:1o) fldsab1n6 zy ps:q*9qiug 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 suf o vj u-a53r2ic *q9pr-dshp/fficiently lightweight that they can run pficq-39rr ap us*5 jvh-o2 d/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 of bug B?

  A plastic block of dimensions y pqa ko613x *2w/opmt2.00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. W1 w32opy6kotq/a* xp mhat is its density?

  A liquid has a specific gravity oj*dk8 si+ f,qn mni38kf 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 -9u4 nsj*j4 5bt f9hnh5ahelbcm x 10.0 cm x 4.00 cm. What is the maximum pressuren 5 feah9jub9lh4 nht*b-4sj5 it can exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each snowshoe cj) ln*0 -mmdzbrhtjj)i8(( ohas area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand at a depth of 120.0 m tq;an3j q5v.p in ta;.3vjq p qt5nhe ocean?

  A circular window of 30 cm diameter in a submarine can withstand a maximuz/tr/ t7 r2ansm force /at2 tr/nr7szof $5.20 \times 10^{5} \; N$. 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 kPamk jppdg8 .i,3?

  What is the gauge pressure at a location 15(f2 vlui8/qq z7nd pe3.0 m below the surface of sea? (The dennf8 v37(ile/pu2dzqq sity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below the surface of 2 xg3gml*2a 0tewsc3x sea? (The density of seawater is ac x*eg lsx0wt2m 32g3$1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydrau. fbw1znmhz9y g4hc 42uc( )fglic machine. The small piston9z.cfy gw n)bzm 12(hcfu4g4 h 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 a radius of 5.0 cm :u tfa));zjzk,o9 hfi and the large piston has a radius of 15 cm. What force must be applied on thkohia,9) ;) :fztfuz je 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 25hxcw26zknzc 9u(, +z t cm diameter hydraulic piston. What force needs to be applied tontx,c(w cz+2k9h6 zzu a 5.0 cm diameter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter of 8.0 cm, and itl/f/ ,t0hb+*/i*nj.5rudg gj xg r qcps large piston has a diameter of 40 cm. The lift rp/fc g qi.lt,jh* *r5g ru/gn /jbd0x+aises 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 i9 tsy*6r:r h(saq:j gbpbm+ 9wn air and 30 N in water. What is the buoyant force of the watp *hss(9b6b:j aq: w9+rtrmgy er?

  An object has a volume of *6ueov+r4.xstf3 u5p3l djls$4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is supported by a stris *g-;s8zs gzgng while submerged in water. What is the gsz g; s-zg8s*tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gocn(x(.4bx3 +t.lu h.ovcnwh xld 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 subg xjv9 f3:uh9omarine (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 wv5n q7+,ysaf is immersed in water. Whav 5wnsq, 7yaf+t is the specific gravity of the object?

  A container of water is placed on a sca* -)u e0notiiole, and the scale reads 120 g. Now a 20-g piece of c0t)* ouo-eiinopper (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 withn5*;yvc jf2u v 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 cm and diameter 2.0 cm wi(od 8/tww mg2bm iv ku0y ze3ys+bsuc((9 (l4mll just barely float in water. What cblw o(uszi 8dm (m0tsb4 + (wgyk/eym9v23(u is its mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0 m wide, and 0.50 mcg;xyk ig7 3zi59gip+ high. How mai iggz5ck p79ixy;+ g3ny kilograms of mass can be loaded 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 halfg a e6:5cdpr qzu w,t(i0hyod:,. c03i6z yhag its volume beneath the surface of the water. The weight of the displaced water i36erd,z0cg u(iqo cdw,:5hpy. :a6za0igyth s 2000 N. What is the weight of the object?

  A solid object floats in water with three-fourths of its volume beneath d 66,8 sind,rq2nngdothe surface. What is the obj n6g8disq,6od ,r n2ndect's density?

  A 200-N object floats with three-fourths of its volume beneat :o1dovy0 ws,xuimi6 fx2xm(5h the surface of the water. What is the buo:(y2 xvs 61fuo ii x,5xmm0odwyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 15v4 dkh)hr4 ch00 cm thick. What is the minimum area of the floe tha)ck4rvd 4hhh5 t 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 g6 y rgc;u n/)6pla9, fchu0hyof 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/r/+93dtyt( x/ica0 z)ei av lhs. There is a 2.0 cm diameter restriction in the line. What is the velocity in this restriction0r/aa)lh(xit/v zdc9i+e yt 3?

  Water flows at 12 m/tb)d42u j c1ils in 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 a63nw8m-wig7oa) jazs 8*qwcp pump to supply a drinking fountain with 300 kPa, if the 8 6w*8z7)gqw 3c o awpai-njsmfountain is 30.0 m above the pump?

  A hole of radius 1.0 kfo22g 1i6s6ie56q qsfb7 k8pwg3eiz mm occurs 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 thekik627 iqg8se3 iq6p 6w2g ffoz b5e1s hole?

  Water flows through a horizontal piu 8vg 6txbqb.l. c,qh.ive4je 8jf72npe 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. How long would i8n*7k4kwi )/x,y7st ba3( xjci fqisvt take to pour 4.0 L of oil through a funnel with a neck 15 cm long and 2.0 cm in diamecs bk*yaw8(tj ,nsq7iv)x f74ii x/k 3ter? 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 fatty tisswapf23 yz3zs/qx p9m o)-3v: dvnpl3 gue on the wall of an artery decreased the radius by 10%. By how much would the pressure provided by the hea9pz/3 qs-wf n l2v)x:g p3zpayvm3do3rt have to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of water. Tube A has twice the u tg 0,rt8pab zz..2vxdiameter of tube B. If wa 80rtzz.b ,g uav.2xptter rises 24 cm in tube A, how high will it rise in tube B?

  The surface tension of water is 0.073 N76x* 5g-7dwpwu0 nlhgxv-txy/m. How high will water rise in a capillary tube of diameter6 7 gt5y-xuwl hn- 70*vwpgxxd 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise inhcx g6 gc5*v*g a glass capillary tube with a dixc*65gvgc h*g ameter of
0.50 mm?

  A narrow tube is placed vertically in aqsl19, zi *pmqh*7z*n 0 ylpdr 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 dp lyimnlzs *rz,*90*h 7 pq1qthe liquid column in the tube?

  Consider a rectangular frame oe5z 0ax 0wn2asf length 0.120 m and width 0.600 m with a soap film formed withi0ae50naxzs 2 wn its 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 has length 12 csh e;u 2nlo8wt* ((aoum 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. How much work is required to move the adjustable long side so th(nlt8a suoe;2*( h uowat the frame is 12 cm square?