The three common phases of m- jic0y5v c5)z odm8ymatter are

  Density is

  Substance A has a densit6a2s zoi q/ tlkjd;,c(y 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 awmiy*292eql tw3/ jj d unit of pressure?

  Consider three drinkingn( b8iwgan+u 2vi9, -36 sblz ktdu9ps glasses. All three have the same area base, and all three are filled tkguui 926sd+ nv,s93i b8ltawz-(pbn o 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 greatest liquid pressure at the bottom?

  What is the difference between the pressot4no c -oij.-ures inside and outside a tire called?

  When atmospheric pressure changes, what happens to do1 k5sg.ut.jz 9vs*mthe absolute pressure at the bottom of a jtv.*ks u9 gm 5d1.sozpool?

  You are originally 1.0 m beneath the surface of a pool. If you div725* 1fh;olwi 9g 8 f7a9kutcd2bbmtpu5oca ue to 2.0 m beneath the surface, what happens to the absolute pressuptoh ma58d79abgc fculwk29t5f*7b2 i 1u o;ure on you?

State Pascal's princwt 9kg 6 tl0i60f3ycfiiple.

State Archimedes' principlptb. jobp*) ,1g7so*v8 jcuupe.

  $50 \; cm^{3}$ 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 density, -rgy(g /34ykqwjw1w2 nds 2zm/np ;py what happens to the (k2mdp y-yysq/n pgzw j/w1w2r3;n4gbuoyant force on it?

  Salt water has greater density than fresh water. A boajwh4 ap0: j3bmt floats in both fresh water and in salt water. Where is the buoyant force greater on thp 0hm:w3j4ja be boat?

  Salt water is more dense than fresh water. A ship floaf q acn-7i nxn,)/wt*its in both fresh water and salt water. Compared to the fresh water, the volume of w ntc*q-7awf,xn)i n /iater displaced in the salt water is

  A steel ball sinks in water but floats in a pool of mercury. Where isob6 ,ud3ie-dkjz*q:z the buoyant * : ei3,kzqdd-o6bzju force on the ball greater?

  A 10-kg piece of aluminulw)kyqi59t zc1ke5* zoz*: 2iydc h7 gm sits at the bottom of a lake, right next to a 10-kg piece of lead. Which has the greater buoyant force on itkc72qc iz)z gwl1i o y:5ye*dt5*9hkz?

  A piece of iron rests on top j/uvc ye6wu4f8nig5/mdr q -(eg z;q/of a piece of wood floating in a bathtub. If the iron is removed from the wood, what happens to the water level in the z ;uji/rgeuy d8e5n(qmq//6c-4v fgwtub?

  A piece of wood is floating in a bathtub. A second x5xpq2m8j7e yy(j wh xw09, -bm0sjlbpiece of wood sits on top of the first piece, an wx j5x0y,b9lsmebjm0-(p 7 w2xhjqy8d 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 is l( 8lcrr(( uwgharger than at point A. Where r uh wr((lc(8gis the speed of the water greater?

  An ideal fluid flows at 12 m/i ngvlzi8 i6,4s in a horizontal pipe. If the pipe widens to twice its original radius, what is the iigv linz 486,flow speed in the wider section?

  An ideal fluid flows ue.dh qe8jlim+ 4t/l (at 12 m/s in a horizontal pipe. If the pipe narrows to half its origina(i4j d/q.leemuh+ 8tll radius, what is the flow speed in the narrower section?

State Bernoulli's principle x(xd8ae* +3io juz5df.

  Which one of the following is associated with the law of conservati8h jmij8;avu,10vqp- snd4vq n yid63 on of energy in f3 ujd vh4i0iqs ny8vm nap1,q6;vj -d8luids?

  As the speed of a moving fluid increases, the p; ay7+fnu; df dg)yjh8ressure in the fluid

  Water flows through a pixy1iwi0fc) 4 ape. The diameter of the pipe at point B is larger than at point A. Whefx01c aiiy)w4 re is the water pressure greatest?

  When you blow some air a) w4w2vwak)wpbove a paper strip, the paper rises. This is because

  A sky diver falls through the air at terminal velocity. Th/i(dyw v,)gqut cp nho9:o*g:e force of air resista *q h (tiuco von,g:d9pwg/:)ynce on him is

  Two Styrofoam balls, of radii R and 2R, are released siy :ups6me 80k7v 5fkfma/fk*zmultaneously from a tall tower. mva 5 7kkm6u0 sf/fz ke:ypf8* Which will reach the ground first?

  When a small spherical rock of radius r falls through water, it e*c p) v,m2.kht/zck pvxperiences a drag f.h2) k, *t mkpczpvcv/orce $F=arv$, 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 efxxiv0dh20vln1qe )by+1. l pefect on the flow of fluid through a narrow pipe? That is, if you made a 10% change in each odqnxlv vpli0 y.e0+2 xb)h1e 1f the quantities below, which would cause the greatest change in the flow rate?

  Two horizontal pipes are the same length, but pipe B has twice)3 .,h5 qo2shunbaa vv9onk8oi+ :e kw the diameter of pipe A. Water v.qa2vhbn kn+8ou )9:hso a3w5k,ioeundergoes 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 twice as long a ds,q7a4st m/fba,301ooh b zjs pipe A. Water undergoes viscqao f7 ,obtb4d/ms0sa, 3j 1hzous 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. * aif9x44dxr6 0gobaj/ vo*em This "greasy" taste seems to be associated with oil spreading out all over the surface of thed ejoi0m/bxa6f* 944xg *roav 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 in water, the water rises to a height h.f1 1nk2wtz o epj2us.- If the diameter were half as great, how high would the water riuj -.est1nzwf p2 o21kse?

  Certain insects, such as the water bug, are suffico-b ,l k**vtfgiently 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, k-l,gbfv*ot *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 spqf :b59yysx8m, gae)k 7j9qas the water 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 bottom of the bug's feet. Suppose that the maximum possible upward force on the feet of water bug A is F. Now :pb9mfjy ysq ,x78sa)k g59qe 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.fe6v z,dpa(l3b/c3zhzi c**j00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. zadp6*ez *,hcbi 3 (vfj3/lcz What is its density?

  A liquid has a specific gravarzw2lpg oia ):16fr kc:9d 4rity of 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x webiaq* hxr8a) qj)+/ 4.00 cm. What is the maximum pressure it can exer)w+ rj)x8qh b ae*qia/t on a horizontal surface?

  A person weighing 900 N is standi4 hsldbaa zp0:0cg/ +tx+m)8 w eqm/peng on snowshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute.4/1iy qebt no) must a submarine withstand at a depth of 120.0 m in the ebyn14oi qt/ .ocean?

  A circular window of 30 cm diameterza(ok;x)g:t q in a submarine can withstand a maximum force xk z o:)ag;qt(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 kP*4 1kjgselck5+-qlh rzt yd :2a?

  What is the gauge pre yvg--rc5w *b ls wonumr ny50q7u:2g;ssure at a location 15.0 m below the surface of sea? (The density of seawater iq; bs7y -vr y5:lrn5cuon -02*wumgwgs $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below the s/-i+ .aieaxzjro iy;)urface of sea? (The densiaye; r.-za+) /oiji ixty of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the sj 7s).50 jej a20 qi k5i9twndlvujw,lmall piston of a hydraulic machine. The small pistot iwj,a qjn7k.0w0u)2vl5jij5 9dse ln 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 /d-2isad pxk .small piston has a radius of 5.0 cm and the large piston has a radius of 15 cm. What force must be applied o.2i/ -paddxk sn 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 aq/c e)au 1ys x8f,y.rk 25 cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm diame18cxyk y.s,e r)fu qa/ter piston to accomplish this?

  The small piston of 2u7heydk 4v,h a hydraulic lift has a diameter of 8.0 cm, and its large piston has ehvu7k24y,d h a 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 air and 30 N in water. What is the bwmul6y 8 sun- jcse8q,6zd; y)uoyant force o86- 6sd,qnzuwe ;uc)8mly ysjf the water?

  An object has a volum-tbk2yxvakcg; w +3w4 e 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 string while submerg4j jxiaaakf a,7w1u 5k2gq89 aed in water. What is the tension in the string? (The specific grk92487,aja1kfj gw u aqi5axaavity of iron is 7.86.)

  If the density of goldch/ f yovx5 -/u8oj(vl 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 subm0g zbsjh2q a.cn*h+oef + l2)xarine (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 wof tgmh1g9i+.4l u w4sater. What is the specific gravig. m fs9gw1th +i4u4loty of the object?

  A container of water is placed on a scsz o/zd (4uv.tale, and the scale reads 120 g. Now a 20-g piece of copper (specific gravity = /svou4tz(.dz 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 n inw r49fniqr klo3/n/dmzu; .g2k:8kg 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 flos -7n8w h9lgy84 dsoyw psk701u 1knagat in water. d as ngk1pw yk-h870ssgyun8 lo791w4 What is its mass?

  A rectangular box of negligible mass measures 5.0 m long, 1. *d (-ao 2oqw)9abv0tds3uuag0 m wide, and 0.50 m high. How many kilograms of mass can be loaded onto a2v(w*-a uduood90 3tb qgs)athe 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 itsqvs s y +uewz)0hj14 oc,:p3wofs,:hi volume beneath the surface of the water. The weight o h,4s0 ev:ios )jwu1qcsoyfhzp:+,3wf the displaced water is 2000 N. What is the weight of the object?

  A solid object floats in water with three-fourths of its volumepu 700cke0fx) n u1hgb beneath the surface. cx g0fu 1phbn0k )0eu7What is the object's density?

  A 200-N object floats with three-fourt5 qcwl wd+nnp0kf)/1jhs of its volume beneath the surface of the w p51+)ckqnfw wlndj0/ater. What is the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. Wha 0,+cq3 eygtver)5xi7 kwr*z tt is the minimwe53 rt+qegti,r7 y)cv0xz *kum 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 pipe of diameter 3.0 cm at 2.0 m/sv w bzo(dl5-gd:f8v g27fcn i0. Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. There k.+db)8o+ xp pq *q8z+oqcwrvis a 2.0 cm diameter restrictikc8 wqv.*o 8)r++dbz+qqxp poon in the line. What is the velocity in this restriction?

  Water flows at 12 m/s in a ril9us/vt f8xy9us ovbykd ko 5r/4-+y; q1(bhorizontal 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 nu.i5w0io tyd1bmf)8l n+c)pt 0rj t .pump to supply a drinking fountain with 300 kPa, if the fountiit50ur. .n+) b fd1 mwp80y)lnj octtain is 30.0 m above the pump?

  A hole of radius 1.0 mm z4vatcyq7ae 8ps8)-h occurs in the bottom of a water storage tank that holds water at a depth of 15 m. At what rate -typ) ehz 8a87svcq4a will water flow out of the hole?

  Water flows through a horizonta 07m rvxxal).7lhcys3l 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-.;/ kgq7jqc egs. How long would it take to pour 4.0 L of oil through a funnel withe7 qkjgg ;.qc/ 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 upper part of the funnel.

  Suppose that the build-up of fatty tissue on t b*s4;hb*tjyupd6a 10n r9bsshe wall of an artery decreased the radius by 10%. By how much would the pressure provided by the heart have to be increas*a0u*;4dpssh rbsb6t1 j9 nb yed to maintain a constant blood flow?

  Two narrow tubes are pi 7w47gkmtq(, w;nz bmlaced in a pan of water. Tube A has twice the diameter of tube B. If wateq4wm (i ktmgnb,7;wz 7r rises 24 cm in tube A, how high will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will water rise in a cap un +gs o.a:v.k33mpzjillary tube of diameter 1.2 mo3 pu :gza.j .svkm3+nm?

  232

  To what height would kch be4 z3jck46eq+ )uv)xn2wwater at 0 degree Celsius rise in a glass capillary tube with a divuze4k 6+2cq 3 kc)nxwbh) 4ejameter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, andx;1 qrz.2yiqq .e ol0f 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. 0zi yrxo. l;1fq.qeq2 What happens to 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 zgvz72e7nu ,3xzkl;8 x;t hxt qee7-ifilm formed within its confined area. Iht2;txenkx78zz 3 -7e eq,uzi;7lvgxf 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 lengt x4r;1b -muoqzh 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 water has surface tension 0.026-xb zmuoq r;14 N/m. How much work is required to move the adjustable long side so that the frame is 12 cm square?