The three common phasegmq ll8iot)lhk 419u6s of matter are

  Density is

  Substance A has a density of *le (pi*:jfabx q1i e /+v8khp4kfyp0$3.0 \; g/cm^{3}$ 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 l8k12f3vo kuw unit of pressure?

  Consider three drinking glasses. All thr.xpfpzvw3d63 2 ls;h/4s owgkee 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 the bottom, and so holds less water than A. Which glass has the greatest lixp6sko2wdp .3z4hvw / gf;l3squid pressure at the bottom?

  What is the difference between the pressuerg.ls50 3rr)-q r; fak-yufy res inside and outside a tire called?

  When atmospheric pressure changes, what happens to t67t:fhh6un)vh;i i7qo - ed6 et 5l7ij5elsiwhe absolute pressure at the 7ltvth:iues5jeoih hf6;6q6e i7 75-ndw il)bottom of a pool?

  You are originally 1.0 m beneath the surface of a pool 5a;nez(+ye qay;c+qz8l adx4m7qd ,y. If you dive to 2.0 m beneath the surface, what happeaqad7zx5+ zyn;y( lq8 +ec mde;q,ay4ns to the absolute pressure on you?

State Pascal's principled07/7 dgdio pl.

State Archimedes' principle.dryccw s5(-f+

  $50 \; cm^{3}$ 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 ofssu qsg03/81+ vjguv x5hq7ni constant density, what happens to the buoyant force on +87gq 13js iqguv5v0 nh/su xsit?

  Salt water has greater densitr3lff-i:;+ p hhikm:lve o1j)y than fresh water. A boat floats in both fresh water and in salt water. Where is the buoyant force grea:l+h;moi:ehj k)p1-iflrv 3fter on the boat?

  Salt water is more dense than fresh water. A ship floats in b56pu2sj u4;a ea4vwx coth fresh water and salt water. Compared tosejv;ap 2 wa4cx45 6uu 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 mercury. Where is the bud3u)smad 3*pj0no:tsoyant for o3du*3sa :0tn) pmjdsce on the ball greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right.qy-rhtm 45 je next to a 10-kg piece of r.t4qj5ehy- m lead. Which has the greater buoyant force on it?

  A piece of iron rests on top of a piece of wood floating in a bathtub. If the ia,grs,-fm, j2-gmoqc ron is removed from the wood, whm-fjm2qg - ,gc,o,rsa at happens to the water level in the tub?

  A piece of wood is floating in a 7r: kkmw ( kg1*tenx1ubathtub. A second piece of wood sits on top of the first piece, and does not gkw:m7uer*k1nt x ( 1ktouch 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 u+x*3/mtd zfg at point B is larger than at pou3fdtz*g +xm/int A. Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizo(cbhuv5 veya*j dwa.pr //x52ntal pipe. If the pipe widens to twice its original radius, whayvxjuv cab /r/p55d( .h*w ae2t is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narrows to halgk u3s*est:u5h9z.ku l /rgi0f its original radius, what is the flow speed isk9ugkeg/hut*3sr5: l .i u 0zn the narrower section?

State Bernoulli's prinyi81 bs4(zz 1 lcxy-zd.nfihq x7f:j ;ciple.

  Which one of the followin ec)wr ecv4glzrq0(,9 g is associated with the law of conservation of energy cw4c9 (elverg,r q )z0in fluids?

  As the speed of a moving fluid increases, the pressure in the gr-6ewsjb4 p0+f y;rw xs06x lfluid

  Water flows through a pipe. The diameterj /-ge at4iyy:jv970plcd,s u of the pipe at point B is larger than at point A. Where is the water pui4cv :j9gl edaj7/, s0t-pyyressure greatest?

  When you blow some air above a paper strip, the paper rieu8zzi 7tw a,eqp;(sizl 4 0l:8t8:ruk dv ,iwses. This is because

  A sky diver falls thr /wul:z r9n8stough the air at terminal velocity. The force of air resistance on him is8w/l n rt9zs:u

  Two Styrofoam balls, of radii R and 2R, are rele*xf ,vm dk+6krpj93wtased simultaneously from a tall tower. Which will reach the ground firstjv mr3k6wkdf,x*p +9 t?

  When a small spherical,jsnk.v vr9-0g)k)6z vberk fa5e ( et rock of radius r falls through water, it experiences a drag force f)ka0vvtb z,k5()r9gkje s6eevn-r. $F=arv$, 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 fezoukne3s.uczgm iwwva: 2+5d34v 4- luid through a narrow pipe? That is, if you made a 10% change in each of the quantities below, which would cause the greatest g:cd5zwoue4e3a 243+-wi. kvs uvznmchange in the flow rate?

  Two horizontal pipes are the same length, but pipe B has twice the diamyjcg2* 4g 4apseter of pipe A. Water unag pc4y*sj g42dergoes 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 d3x 3iatp., j2ty :8tvho k3hhuiameter, but pipe B is twice as long as pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure differenc82htaoyk.:tuhvji 3ht3x p, 3 e 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 ofteof63dn wc c;1nn 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 "phys6;3cn1d n wcofikers", this is readily explained in terms of

  When a tube of diameter d is placediq mnmhcv7;sy,n0,cbd7 u : 0f in water, the water rises to a height h. If the diameter were half as great, how high would the water risfyb m:c0m0,i;hv cnu,n77d qs e?

  Certain insects, such as the water bug, are sufficienk*q63pr(tu9 pp fwtz; tly lightweight that they can run on top of water(6ktp t9rq3pzf;upw* 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. What is the weight of bug B?

  Certain insects, such as the water bug, are sufficieno5 )2kspdu h*/syls5 sv 7e8iytly 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 usk *p s y/e7dhlyv5is8 52uo)spward 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 xr w d;u iy.eek, /ob(qph3y3- 7mpxo5u 3.00 cm x 4.00 cm has a mass of 30.0 g. What is its density73mr;(x-p bo k53dh wq i ,epey/u.yuo?

  A liquid has a specific gravity of 0. ca/zbn-5*ma o357. What is its density?

  A brick weighs 50.0 N, and measures t ovm4t m/apue)kt9a se064/p30.0 cm x 10.0 cm x 4.00 cm. What is the maximum pressure it can exert on a horizontal surfac ps//eau6 )pmtkt0oe vt94a m4e?

  A person weighing 900 N is standing on snowshoes. Each snowshoe has area*(bzqezep79i0o hqx ; $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absql*1.imz 7uu golute) must a submarine withstand at a depth of 120.0 m in the oc mu7zq.u*l g1iean?

  A circular window of 30 cm diameter in a submarine can withstand a maximum;7ezbzrnms . k; 9ql2g force9mzlrk7 n;ebqg s.;2z 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 pryh;o/+gbp s6t;m,o7jdka v s:essure is 300 kPa?

  What is the gauge presso5rp h.ox(6cc ure at a location 15.0 m below the surface of sea? (The density of seawater is5.h6r (o opccx $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a locatbou/;vss4 dpv dh2c.. 12ms* n4cmcubion 15.0 m below the surface of sea? (The de2 4p./vc;*ubvcmdn dus.h c2mb4ss1 onsity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydrao/ui2*bdjamr6hv,4 l ulic machine. The small piston hi ,ub4 /6rvdmh*ljo2 aas 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 alo)y6-r0+4)hm svzc 1 ulnfr frml/g0nd the large piston has 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 larg6r gv lr/s0r4 )yf+l)ln- 0ou mh1mczfe piston?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter hydrauliw w6h 8- nf4l8rh,kwtac piston. What force needs to be applied to a 5.0 cm diameter piston to a8lw, hwa-tk r4f8n6 hwccomplish this?

  The small piston of a hydrldxll7m j6e9/+gah zf1wu 9 r1aulic lift has a diameter of 8.0 cm, and its large piston has a diamgu1 m7l fxj1w6 9l /dlzh9are+eter 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 wspy(w6v4k1zk v : 51rcmrm ;lair and 30 N in water. What is the buoyant force of thvr w1mlz (6 51vp4k:wrcys;kme water?

  An object has a volume u-+dp a2aay9 c clv2 zvop5k:.3ur:ds of $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid ihko( :nhk k-6iron is supported by a string while submerged in water. What is the tension in the string? (The specific gravity of iron is 7.86h(k h:o- 6kink.)

  If the density of golij4wdu2*mk2 o+de z-+tmj qp,d 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 surdu 4e s++z mu x/ nywc.n)1+hc 0aqa*4h7htdrbmarine (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 i6iaclc l8c.j * do)g/tn air and 6.86 N when it is immersed in water. What ).gd8 li/ jclcoc6ta*is the specific gravity of the object?

  A container of water is placed on a scale, and the scale reads 12/b5m)-6gvsx28 cgodz/a ou 6nkv;u (lsop um40 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended frozdk64m )vbln2ogg/mcu/u-a;o8 su56 sovpx(m 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 kgfm f 3bf*n6xj **rz,es 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 l(vesls 1wx74)jjsm6 a ength 12 cm and diameter 2.0 cm will just barely float in water. Whas)sjm xl 7esvw(4 6a1jt is its mass?

  A rectangular box of negligible mass measures 5siy7gs7yi 597t. nxdu cmd/6p.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loaded onto the box before ii7t. y7pmds suy6cg 5i9 d/nx7t 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 halfd;v s-n 2(itz0ack;fj its volume beneath the surface of the water. The weight of the displaced water is 2000 N. What is the weight of the o;an02vf;dks ci-( j tzbject?

  A solid object floats in water with three-fourths of its volume beneath gx ,2zr/+w hyuthe surface. W, ugzw/yx2r+ hhat is the object's density?

  A 200-N object floats with three-fourths of its volume lq /iarcx:g wg8/c:r4beneath the surface of the water. What is the buoya:x r4 rl:acqgg8/c wi/nt force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. +ep os lou :h*i-vv8z1 What is the minimum area of the floe that will just support the bear in saltwater of specifi1 e ol: 8oi*svu+pzv-hc gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pipl krykg():- bie of diameter 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter.*1pgdhk7* nvwbl *o m pipe at 1.0 m/s. There is a 2.0 cm diameter restriction in the line. What is the velocity in this restropk1hmn 7b*.*vd w *gliction?

  Water flows at 12 m/s in4mq/e v :ddos4ct9 9ct 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 a pump to4 5qq8.d opcsawd)sbjm 7/su 3 supply a drinking fountain with 300 kPa, if the fountain is 30.0 m abma)w s/pc8b. sd jdqos573u4qove the pump?

  A hole of radius 1.0 mm occurs in the bottbtzs:j ,la.8.lgunzhhn5j 2 - om of a water storage tank that holds water at a depth of 15 m. At what5 z.8szlh ghuj-j,ltb:ann2 . rate will water flow out of the hole?

  Water flows through a horizontal:zo 4f68te3-eot jpyt 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 0.2ov0z4o 1o6iyf /y,mf hyhom)10 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 upper part of thyf1 1 hom hofv/y 4oy,z0m)i6oe funnel.

  Suppose that the build-up of fatty tisw: 3lf l.ci5pusue on the wall of an artery decreased the radius by 10%. By how much would the pressure provided by the heart have to be increased to maintain a consta3l pl:fiu.5wc nt blood flow?

  Two narrow tubes are placed in a pan of water. Tube A has twice the dia ji9m- bbehhn bx u 7tgt82).+ iobtq5z2ryl0+meter of tube B. If water rises 24 cm in tube A, how high will it rise i0brx9e .2jt7qt2+z bt)bii -lo hb+ 5uyg8nhmn tube B?

  The surface tension of water is 0.073 N/m. How high 5+r1hjg;p :lbh (afbgh;zk4yi08bs m will water rise in a capillary tube; ip;h5ym0sgh1fg:k bljz ra8h+ (4bb of diameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capynae7y ph./u* illary tube with a diameterya hye7/.upn * of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and the w+ nw2vv lvx 3unqh0 ,f(l0)whrater rises in the tube to 4.0 cm above th3hl02+vxhuvl(w )qnf0,w vnr e 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 in the tube?

  Consider a rectangular frame of l)o3bb by99ot oength 0.120 m and width 0.600 m with a soap film formed within its confined area. If the surface tension of soapy water is 0.0260 N/m, how much force does the soap o )39o9 otbbybfilm exert on the 0.600 m side?

  An adjustable rectangu ej26rg6x d0 b-pvf-oglar frame has 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 water has surface tensionxg6 o d0bg p6--vfe2rj 0.026 N/m. How much work is required to move the adjustable long side so that the frame is 12 cm square?