The three common phases l)ki8shlf w+ ,of matter are

  Density is

  Substance A has a den ahbw1 - 4)je5o.diz mym36liksity 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 unit of pressu7(swf nf(dwz 9tun0v ) 2remd+re?

  Consider three drinking glasses. All three have the same area base, and allp1c s6k gl +7jm 9nzfzfbce17) three are filled to the same depth with water. Glass A is cylindrical. Glass B is wider at the top c9b1jsn)pzegm1 67+7flz kfcthan 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 pressures inside and outside a tibjogqx n1+y 4*g6 -ixfre called?

  When atmospheric pressure changes, what happens to the absolute pren9zk, r nhl1z-v,mxm5u+j yd kn 4gg81+xbbj;ssure at the bottom of a pooux8r xkj 5m ,-y9h dbk11gm 4zngzbln+vn,+;jl?

  You are originally 1.0 mr5 r0bznx py)* beneath the surface of a pool. If you dive to 2.0 m beneath the surface, what happens to the absolute pressurx5zyrrn*)b p 0e on you?

State Pascal's principle.,kwy1beqsyaq2 u3,kp;z 2z9c zyx-) g

State Archimedes' principlwd mkq4m-/kzi0c+v:qc2 1)f1ipdm mlm+as 3 ee.

  $50 \; cm^{3}$ 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, what happt - uezk;8qmw0ens to the - 0kq ;mu8tewzbuoyant force on it?

  Salt water has greater density than freb d to4mwkt;+1sh water. A boat floats in both fresh water and in salt water. Wher1tm+k4tbo ;dwe is the buoyant force greater on the boat?

  Salt water is more dense than fresh rh+ud 18+ def+09q+ czayhfxte7aa3bwater. A ship floats in both fresh water and salt water. Compared to the fresh wate b8er9d7ahu+x++d aeh0f13qc ay t +fzr, the volume of water displaced in the salt water is

  A steel ball sinks in water but floats in a pool of mercury. Where is8 y,luc 0lep+c the buoyant force on 8l,c+yep0l ucthe ball greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, rifj4-x m.k4vbk 2qr7s-0iug exght next to a 10-kg piece of lead. Which has jv.-ibm 7kf2 -gks0x xrue44qthe greater buoyant force on it?

  A piece of iron rests on top of a piece of wood floating in a bat;m,t0 acxge yu)sy:h0 htub. If the iron is removed from the wood,c,: ; htemy)usgyx 00a what happens to the water level in the tub?

  A piece of wood is fx2 w /fmhugy7/loating in 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 taken off and placed in the wat 72 gy/hwxmuf/er, what happens to the water level in the tub?

  Water flows through a pip9 nparxd:pg -1e. The diameter of the pipe at point B is larger than at point A. Where is the speed of 1g9par:ndxp- the water greater?

  An ideal fluid flows at 12 m/s in a horizontal p 9dr7; jj3ln ycgb+tda8z 2r*gipe. If the pipe widens to twice its original radius, what is the flow speed in th;+jgbdtga2c3 7nl* jz d9yr r8e wider section?

  An ideal fluid flows at 12 m/s in a horizontal pi fbvra/4w *mhh4 ;d)3j7(a k(db7iou c lytqp8pe. If the pipe narrows to half its original radius, what is the flow speed h 8 7khaaq fr(iv)y7c*budd 4otjwplb4;/m3 (in the narrower section?

State Bernoulli's principle.9;dmnga 8 1ya,ej1pxl

  Which one of the following h86l6ku-7e9h vnmh fsis associated with the law of conservation of energy in fluid 9h7hu 68sflkh6mn-ves?

  As the speed of a moving -i1nqq4c-jc 8 hht z(ug5c4xcfluid increases, the pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at point B ip9:z xqi hht 7.2y;h)zba:xge s larger than at point A. Where is the wa x;.b)qhp92 z:iygez7x :ath hter pressure greatest?

  When you blow some air above a paper strip, the paper rises. Thi*bgnhu .+ hbtic xi*t )zf61l2v3zot1s is because

  A sky diver falls through /o3tr 2qijuh h9:ng0z the air at terminal velocity. The force of air resistance on him is/qt r30z:gnj h2ou 9ih

  Two Styrofoam balls, of rad tf0*j0ody4faii R and 2R, are released simultaneously from a tall tower. Whic0 atfy0*4jdofh will reach the ground first?

  When a small spherical rock of radius r falls th0 +uaesv6 tm fcu;9urq s7b-e9rough water, it experiences a drag force tca ;0 9-evfrmsuq6uu 7bs9+ e$F=arv$, 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 y,,uuvz b :x5zqdfjuhe0 d3 p6x00rb. is, if you made a 10% change in each of the quantities below, which would cause the greatest chanqd5 pzx ur,0,u6b:f h0 b3jedu y.z0vxge in the flow rate?

  Two horizontal pipes are + -vbfnv8a,oe tg*)ybthe 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 oyb a*f8n, -vv)g+bte in pipe B?

  Two horizontal pipes have the same diameter, but pul- ndfgglg ac*g0799 dcq/i, e0o1vtipe B is twice as long as pipe A. Water undergoela-igne*0ldgdgf0v 971o,t/ c g9 q cus viscous 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, pa zaok 2fjj2(*7axjri :4ph)it often tastes greasy. This "greasy" taste seems to be associated with oil spreading out all over the surfacjp)ifjx kaa a:r o (h4pj722*ze of the 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 risvlztdv,4ezs 27n v0 9oes to a height h. If the diametnv v9v0t o2zezd,ls74er were half as great, how high would the water rise?

  Certain insects, suci3k,5e h 9 /egt 7s0rtp**ah*glfpimvh as the water bug, are sufficiently lightweight that they can run on top of water5ehligt h *p7gk 3 m,epv*90at*ir s/f 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 sufficiently zsk4+5stjz1iq3bf/ :ln s*qylightweight that they can run on top of water without breaking the surface ten4ilb /tyss*5jkf3z+s qnq1 z: sion. 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 4.0wr mg6dmm2x cz+ e)z,szd(1.z 0 cm has a mass of 30.0 g. What is(x1z m+ zgc z6mdes rd)mw2,.z its density?

  A liquid has a specific gravityn5avgzj mk bwj/0*0 poo/h7 *k1t pyh7 of 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x zi t9oaq/nl/c3-) a mw10.0 cm x 4.00 cm. What is the maximum pressure it can ezt3n ci)- lm awa//9qoxert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each snowshoe has a( +i7 * rjszp/t.fttfurea $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand*xjp9z urd l;/ at a depth of 120.0 m in the rl/p;*u9jx zd ocean?

  A circular window of 30 cm diameter in a submarin3 )zlja l w5g) -m9t+wqllr:pee can withstand a maximum force of rz +5ltelq j)mwlpg-l9 )w3 :a$5.20 \times 10^{5} \; N$. 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 kPa?0iavl akq14d:

  What is the gauge pressuuay 9fy:dc4y:re at a location 15.0 m below the surface of sea? (The density of seawatey ya49:cufd :yr is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15yzyj66jyep9t b,h; fj+jc/r ).0 m below the surface of sea? (The density of seawt6ye69)b/+,f yp;rjc yzjjjhater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machix7 mv4:ks6 wc mcg f8,kc49rdbne. The small piston has areamv b9sk4x, k8:gr4fdc 7mcc6w $2.0 \; cm^{2}$. If the large piston has area $40 \; cm^{2}$, how much weight can the large piston support?

  In a hydraulic garag;0m+ohmz o4c)6xcazr ij/t)e e lift, the small piston has a radius of 5.0 cm and the large piston has a radius of 15 cm. What/cc0)zr ;ajz+m mi6to4o)x he 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 hydraecsfz+ ywzpa bb,/1)ssjq28+ulic piston. What fo/b1), azp+wbs8qjsfe sz y2c+rce needs to be applied to a 5.0 cm diameter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter of 8.0 cm, and its large pby. yy sbuj43mm 034nqiston has a diameter of 40 cm. The lift raises a load of j4 0qbm3 yn y.usbm34y15,000 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 wnnn(,ua7q ,o .cg3iywater. What is the buoyant force g ,o an,qynn7u.ci 3(wof the water?

  An object has a volume o,:0hjf kcv*d 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 p np6vohe)5 1qeoayf ,fa70t4by a string while submerged in water. What is the tension in the strinh fp,57q4 fanvae pe)oo6 1yt0g? (The specific gravity of iron is 7.86.)

  If the density of gold is8r urvfn)g,a , $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarine spp/5,arkfo)x) xanh+qf : z*(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 luy/g2 g :u7kdwhen it is in air and 6.86 N when it is immersed in water. What is the specific gravity of the object?7kl /:uygud g2

  A container of water is placed on a scale, and the scale reads 120 gf,cl .2h4 td *fmn,kov. Now a 20-g piecv *dfhl,mco n kf2t,4.e of copper (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 ofd1qkw(l 8n-k),vhy gg 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 a.06c,vi loq .gj2pk ljvy)-u12 cm and diameter 2.0 cm will just barely float in water. What)uvlloka 2. jqv- jpg 0.6,icy is its mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0 m wide, and 0.505t0)h6eo ks+p .p3w,t5mhj grhfjks/ m high. How many kilograms of mass can be loaded onto the box before i/hsephkm)50t 5tpkgf +wso r h3,j6. jt 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 voyi., tuhs2mtpeg, ob k i v599nbi:t,2lume beneath the surface of the water. The weight of the displaced water is 2000 N. What is the weight of the objec ko i2,25hvyb9m9i. ui ,p,e:gsntbttt?

  A solid object floats in water wc zka arg/+ 7rq xn7e vt8()etzqw29o.ith three-fourths of its volume beneath the surface. What is the object's densr+qr geqezt2 9/7aw)(8vn a.t7oxz kcity?

  A 200-N object floats with three-fourths of its volume beneath the surface of thry 8hsp 5)ys7he water. What i75r sy phy)s8hs the buoyant force on the object?

  A polar bear of mass 200 kg 3di2ag 3ch5oistands on an ice floe 100 cm thick. What is the minimum area of the floe that will just support the bear in saltwater of speih3dga5c23i o cific gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pipe of diametery (gnzdtl4p.sb : )pa( 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/s. There is a 2.0 c ym5w(8by4evb x t5/pzm diameter restriction in the line. What is the velocity in this restrictionb v85mbywz (5xtp/e4y ?

  Water flows at 12 m/s in a horizontal pipe wit.qn7ex,)4 zl pa1ttyth 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 wit.6y mlto* oow(g,:h5ip(emih h 300 kPa, if the fountain is 30.0 m above the powh. 6iphgi y tm,:(ml5o(e*o ump?

  A hole of radius 1.0 mm occurs in the bottom of a water stow ncu11g6bq0xrage tank that holds wa1 wu g61bqnxc0ter at a depth of 15 m. At what rate will water flow out of the hole?

  Water flows through a hh7 c6;dxbrn3 iq;* adforizontal 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. How long9kk.pcys1v /+ fbsvj* 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*vfpy sjb9ck1/+. v ks due to the upper part of the funnel.

  Suppose that the build-up of fatty tissue on the wall of an artery de*y5a+ous . yy/r:jw o;z8lj49ijutnocreased the radius by 10%. By how much would thjw o*o+84: iu .ruz y9layjsn5 tjy;o/e pressure provided by the heart have to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan oc;g hq(wt kjxs;n;o y .;*yx3rf water. Tube A has twice the diameter of tube B. If water ris ;jo rnwty *g;(qh3x; sx.;cykes 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 jf. xlmp78dwi79v z7lin a capillary tube idx jvpwfml7.zl978 7of diameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise i k vkde673 (sha6nbkklc2i4k1n a glass capillary tube with a diameter s7(vd 1k3kc hk266eak 4iklbnof
0.50 mm?

  A narrow tube is placed ver pjx4.v*9n jnrtically 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 the addition of some sor *jnv.pnjx94ap. 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 fi5m( cu,rse zmb +g5prbkxuz h9we37 70lm formed within its confined area. If the surface tension of soapy water is 0.0260 N/m, how much foru 9rube p7kz(+wr7m ,m0g53 she cbzx5ce does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and width qg8m ea-iat8,q)j6f04n jqo sfsn) 8p 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 aqanofse)p ig4fj)sm,-q 80t 8jn68qhas 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?