The three common phases ofrv b3pfw+ en39 matter are

  Density is

  Substance A has a denns+dt p; x(i: z6rv2gtsity 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 pressuryg/t*2bumh 5hpxw(x0 e?

  Consider three drinking glasses. All three have the same area baseoyo0chk3o:5ulj46 rbo7hlenp c23x 6f ..vdd , and all three are filledpjo:old3xuo3d7.e 0 4 c6kbnv5l chfhry .2o6 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 liquid pressure at the bottom?

  What is the difference between the presde7wxoo02ykmu:9zu+ s 6y,dn sures inside and outside a tire called?

  When atmospheric pressure changes, what happens to the absom2ml/**2oxhpsnb 9 -)r9, kpms vwh kylute pressure at the boy 2* 9s*wpv kxp9b2mm-rs)n,khlh /mottom of a pool?

  You are originally 1.0 m beneath the surface of a px;h7znr*dqnw01i:x a ool. If you dive to 2.0 m beneath the surface, what xq*:d17a rnziw;xnh0happens to the absolute pressure on you?

State Pascal's principby r:*;f27ln1blv a2g: fosa ale.

State Archimedes' principle.qfc h(qytw)da:4i (6t s5x4io

  $50 \; cm^{3}$ 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 kw)8ffrp +ks( al:1oqconstant density, what happens to the buoyant force onf :8rwl1kf+paokq (s) it?

  Salt water has greater density than fresh water. A boat floats i2yzp :auyu h(6n both fresh water and in salt water. Where is the buoyant foyz2y(up6h u:a rce greater on the boat?

  Salt water is more dense than fresh waterm-.gf vrr6bxp 6km:-r 7ajlzx7a(z9 e. A ship floats in both fresh water and salt water. Compared to the fresh water, the volume of water displ7rezkx-9g6 7jrvrx.ap6-fmbl ( :amzaced in the salt water is

  A steel ball sinks in water but floats in a fsy ,,y7qtpbqn,n,6dg b,:uq-uxrj * 5qydc 9pool of mercury. Where is the buoyant force on the ball greater?xb yrj ynsq,,,69-qdfnc qp b* ,q:7tdu, y5ug

  A 10-kg piece of aluminum sits at the bottom of a lake, rightz4j,:60l-ger mq k l+ehd8wd t next to a 10-kg piece of lead. Which hasqr8emj: 6gl - w0k+hdld ezt,4 the greater buoyant force on it?

  A piece of iron rests on top u g( vzol-l7zil-oj:e1 ez2 -dof a piece of wood floating in a bathtub. If the iron is removed from the wood, what happens to the waz oe - ld:uzz-le(g1-i2ojvl 7ter level in the tub?

  A piece of wood is flocrn1had4p j p- ;2qkb7ating 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;b7an2 jkqc1d hrp 4-p is taken off and placed in the water, what happens to the water level in the tub?

  Water flows through a pipe. The diameter /yb6ujh/ ox*-eqg6rf of the pipe at point B is larger than aq-ef6bo6ryg /hu/ x *jt point A. Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontalx + x2 fmrd0wpk65hr3r pipe. If the pipe widens to twice its original radius, what is p6xrh35w+k rdmf 2x0r the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narrgv gddzd8u546 zc n6*tows to half its original radius, what is the flow speed in the ng*zc6 ddz nvd58 4utg6arrower section?

State Bernoulli's principb8tf)xn9v p:tz:d 2tdj 3u(u ule.

  Which one of the following ll-q*1vi5 sggis associated with the law of conservation of energy in fluidsi v*gs1 q5ll-g?

  As the speed of a moving fluid increases, the p1 qxay-e5c * zc1zkrgw+fyb+,ressure in the fluid

  Water flows through a pipe7-ixq*o v;gg )btg aj/. The diameter of the pipe at point B is larger than at point A. Where is the water pressure greatextvg-ibg7a ); qog/ *jst?

  When you blow some air above a paper,x.ddfy +k* y0 ewcrx1oz3wj+ strip, the paper rises. This is because

  A sky diver falls through the air at terminal velocity. The force of air rir)k95 g((rmp g(*)qun,fz jm jcirh2esistance on him2 zi(gjgi9n*j),fq r k(rhm(pr 5cm )u is

  Two Styrofoam balls, of radii R and 2R, are rop tafxn()5vdecvr18 l-f o5q/b;uy4v y8 4mgeleased simultaneously from a tall tower. Which will reach the grvc peutav5-vm g;/)bn (d4f4q1rl 5xooy8f y 8ound first?

  When a small spherical rock of radius r falls through 1m1wgq6k ig; 6lpfot 6orfegs: k;x/2water, it experiences a drag forf1lqm:wigrt 6ko26 g s1o ;fg6;xk/pece $F=arv$, 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 narr-z k tc30 -b+kccf0dchow pipe? That is, if you made a 10% change in e 3cc0-0cd+btkkfh zc- ach of the quantities below, which would cause the greatest change in the flow rate?

  Two horizontal pipes are the same lengttbz b-ulg7c59fg3to9 s rcca.668tkw h, 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 pipesrt cbbu6w996. 8kosglfa-5tcg cz3t7. 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 pip62 8mmye2ofoiufz7e7 i)2ipi e B is twice as long as 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 B is u82 e6mof i)i p2o72yf7ziime Q, what is the flow rate in pipe A?

  When soup gets cold, it often tastes greasy. This "greasy" tahypmrx 01cp7+ w :yb54da9okzste seems to be associated with oil spreading out all over the surf 1k9daxr zpy cw5y: hm4o+bp70ace 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 rises to a height h. Ite ,5q1mw2l fl;y icx9f the diameter were half ;2lx eqci5 lw1f,y9mt as great, how high would the water rise?

  Certain insects, such as the water bug, are sufficiently l7lwq sb9( ejkj(iyd+zm, bmgr) :c :1;kayq4uightweight 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 y()amceg4qj(r17 zydu +b9:bjs k :qi,wk;mlbug 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 suffm0o2ei:0m:a6eadlo *vu8eb,0 t nf ouiciently lightweight that they can run on top of water without breaking the surface tensiod me*2eufaab n0:e6:o0li v ,8tmu0o on. 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 4.00 cm has a mu mkdp*lo xo:n3 *, mn 0hm-o6c;m1dooass of 30.0 g. What is its densin6dk- m*o:d ol;1 p3o cxmmu*h 0o,mnoty?

  A liquid has a specific gravtu:.y39/b f3omz hsod ity of 0.357. What is its density?

  A brick weighs 50.0 N, and mei 9v6vb71gr ixy: xm1kasures 30.0 cm x 10.0 cm x 4.00 cm. What is the maximum pressure vv:ixig11m9xby 7 rk6it can exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. r5n8i: i-pwr u Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand at a4jhd/mtx9m+uhm59* mi3 b rer depth of 120.0 m in the oce3meh9tmi /5* 9d4mrr xm+juhban?

  A circular window of 30 cm diameter in a submarine can withstand a maximu;nndlr,/- s xk7i+0qfm tx0 lvm force ofmn00 xlxlr; s vqf+nt,ikd7-/ $5.20 \times 10^{5} \; N$. 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)cw:rbpg.f(bpan) d,5ry e )w is 300 kPa?

  What is the gauge pressure at a locationcs od1 kupuli9j.e:zc j 5f*,7 15.0 m below the surface of sea? (The density jd jk 9ec1c5lszp.i* :u7fo,u of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below th.+4;zgztats8p pnf ( he surface of sea? (The density of s .+asz;8(gz ntfp htp4eawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on thl2kf (* 9oldmazm4 7eie small piston of a hydraulic machine. The small piston has areaam2k l9( 4m ifzelod*7 $2.0 \; cm^{2}$. If the large piston has area $40 \; cm^{2}$, how much weight can the large piston support?

  In a hydraulic garage lift, the small pii ;kcn,g*vd6 rx6l4az ston has a radius of 5.0 cm and 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 large pisk4g6 6ldar, civ;xzn*ton?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter hydraulic piston. Whf6yap76:wqam at force needs to be applied to a 5.0 cm diameter piston to acc7awamp 6q6f:yomplish this?

  The small piston of a u,q)j5/ m9xzl2m 3*0kq aoytukzwyg 5hydraulic lift has a diameter of 8.0 cm, and its large piston has a diameter of*93zwtjaz0o 5uq/uqlkmyy5,mk2) gx 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 weighsyq r kv26i6fqvli+ri u+ ct72cy7*0a j 40 N in air and 30 N in water. What is the buoyant force6i+a0k+7ruc y26jc * ql qtvvri2f7iy of the water?

  An object has a volumevabi(0mvr5*k 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 wh)tmv4x-a4v0k u0tjxlo gj80eile submerged in water. What is the tension in the string? auvko40elt)jmv0 x 0xgj8- t4 (The specific gravity of iron is 7.86.)

  If the density of goldr+zpidy/pcsj - o/b7): vp ntg8 bj2-k 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 e y)fnl3h8wr4(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 6.8:b+ vmvsafv2fx4gs :16 N when it is immersed in water. 4b:s fa2 svfg+vm 1:xv What is the specific gravity of the object?

  A container of water is pme31ci4a3m s+;3gb wscl:omu b6oq s+laced on a scale, and the scale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a threami ; 3mq s1bosc 3c+swa 3o+ml6u4beg:d 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 kg and de(,n s8gsn,s, l5e2 iqf,l)vn.eb w whjnsity 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 andx8tlnefu-e mwh o7v7/ 2; 9lrb diameter 2.0 cm will just barely float in b-2 n7l;8e fu7wtvxrhoel/9m water. What is its mass?

  A rectangular box of nf 4ob7ysoz(k9 2xa*n cu56eldegligible mass measures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loaded onto the box before it si (l nooex9y*bca z6us7kfd2 45nks 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 of the water. Th(q vkxl xx (go)6xf2k21+hhh we weight of the displaced water is 2000 N. Wha) qxvwok2g(xhf2x6h+( 1hklx t is the weight of the object?

  A solid object floats in water with three-fourths of its volume benea+ k 9ujautav s/v22f6hth the surface. What is the obje hvt fa+u2 /a69jsv2ukct's density?

  A 200-N object floats with three-fourths of its volume beneath the surr d4u4; g hbdjmq60u(fc n6oq0face of the water.cqm ud(n4;0obr6f d4 h6g0ju q What is the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What z/)7tf2 mzdjf o/a /whis the minimum area of the floe that will just support the bear in saltwater of specific gravity 1.03? The specific gravity of/f)d/ om tf7j/wzhz a2 ice is 0.98.

  Liquid flows through a pipes+sks3 gnvc x 0ij-t93 of diameter 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm td7u6m;zn z(fg0z,1b0 vf iek diameter pipe at 1.0 m/s. There is a 2.0 cm diameter res nv1ekd zt6fm;g0,70bfz(zu i triction in the line. What is the velocity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with a pressurq(gt/ +a)v+7 b9rr9 hgbrwcmh t-vck 0e 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 drinkings; :jm4u mb1we fountain with 300 kPa, if the fountain is 30.0 m4w 1m;bjs:eu m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of28 leh* pe5hog a water storage tank that holds water at a depth of 1g8 oee2 lhph5*5 m. At what rate will water flow out of the hole?

  Water flows through a horizontal pipe of cross-sectbfsxjh lwhq -.k)1*5z ional 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.7.r/ + z0s04ptqqp1gm *ib4feo jkc6jfmw5pi 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 k0 qti.4 pmw*ji4o6 fej5 +cbr70s/ 1gmppzfqkept 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 tfg 4 e-f.8uvc. h(afrwissue on the wall of an artery decreased the radius by 10%. By how much would the pressure.(vah4 f8-recwff. ug provided by the heart have to be increased to maintain a constant blood flow?

  Two narrow tubes arep8un/a kc b1,/jxeib0 1ihu 4f placed in a pan of water. Tube A has twice the diameter of tube B. If water riseskna 8pj,c1041u/fbi ui /ehxb 24 cm in tube A, how high will it rise in tube B?

  The surface tension ofl 4i5ul ;z+yq4wzwy g/ water is 0.073 N/m. How high will water rise in a capillary tube of diameter 4wzzwuy4 +q5l/l;iy g 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capillary tu *avyn7ul0ug o9lj9j (be with a diam9j7oyvuj*l9al0u n g (eter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, andin5 h6wuqhrfvdb7d-o, npg bfc 8dk90,176 yb 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 t7ybn, p79q0dc ,1 6d5bgn8kr6wuhviod -bhff o the height of the liquid column in the tube?

  Consider a rectangular frame of length 0.120 m a iws- rz1/pfk3nd width 0.600 m with a soap film formed withi-fr1si/wk z3 pn 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 cm and wid1+98g valt lq1kuirs 2th 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. Hr2uk19i qg8l t1vl sa+ow much work is required to move the adjustable long side so that the frame is 12 cm square?