The three common phases of mattezq9p5ricn73 ab2 4bgw,1 hlfb r are

  Density is

  Substance A has a density opk4k6 8 7tvatu*n mb9*yipmc.f $3.0 \; g/cm^{3}$ 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 press(a v.*uwz: sinure?

  Consider three drinking glasslw*qjtdx(g 1w y0iu06*,a bymrow :*ees. All three 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 liquid pressure at the bot0tg6 *uwxlj a 0y(m1wq d:i*ry*w, beotom?

  What is the difference betw :pif 3wj7j8bp+nky9qeen the pressures inside and outside a tire called?

  When atmospheric pressure changes, what happens to the absolute prelpt 3)ksw.ab ,k 8sd7bssure at the bottom ofsp 3bwkad)tk7b.l s,8 a pool?

  You are originally 1.0 m beneath the surface o kwk; ulbr)te: mv-p((f a pool. If you dive to 2.0 m beneath the surface, what happens to the absolutmw( :lebkpru)tvk( ;- e pressure on you?

State Pascal's principle9dw e ra qb6qcnwy* k83,e*/vc.

State Archimedes' principle.smpeauo : l 1-w-73sxs

  $50 \; cm^{3}$ 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 conje,o*cf+e p2 astant density, what happens to the buoyant force oj,ap+c f2*eeon it?

  Salt water has greater density thvx, 5 8a:e4(0d e6xjtkvipg ov,jpb/ ean fresh water. A boat floats in both fresh water and in salt water. Where0,:keepv4voa j ij(ge/b x8dvp, 65xt is the buoyant force greater on the boat?

  Salt water is more dense than fresh water. A ship floats in both fresh water mv3drlhs,jjw:f r d; ,v*+9sz rq hsczba)/ 3;and salt water. Compared to the fresh water, the volume of water dsj;9)v rzjbhzd fcrlw ;r mv:q a,, s+h3d/3*sisplaced in the salt water is

  A steel ball sinks in water but floats in a pool of mer:wck2b09u bb g-g3luj cury. Where is the buoyant force on thbb: u9b 0-32 lgckjgwue ball greater?

  A 10-kg piece of aluminum sits atwvkz nf8n,awfv 4r09 ta(:x fhh y54x8 the bottom of a lake, right next to a 10-kg piece o8(wf f4 z nth5wy4,nrvx8 axhvf a0:9kf lead. Which has the greater buoyant force on it?

  A piece of iron rests on top of a pieyw0k.1c a vb/i o0;yzn dc/b9wu;fam.ce of wood floating in a bathtub. If the iron is removed from the wood, what happens to the water level in m ycd 90a;/0;ab 1.bz/uyow .n icvkwfthe tub?

  A piece of wood is floating in a bathtub. A second piece ytw c(g;ah*k + u(mmb0of 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 water, what happens to the wat*guw( tcby( h+m;m0aker level in the tub?

  Water flows through a pipe. The diameter of the pipe at point B h)p9 rmhu5n7m*ku .p/c9dsm bis larger than at point A. Where is themhrm)hm5* d. p97k/sb un9cup speed of the water greater?

  An ideal fluid flows r f8(l dv7b9ooe0 qx/oat 12 m/s in a horizontal pipe. If the pipe widens to twice its originaex 7d0rlbo8q9fo o/v(l radius, what 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 halfifb qpb 3t*2s/2ad:h f its original radius, what is the flow speed in/sipbhf td2 3b*f a:q2 the narrower section?

State Bernoulli's principi.kc*k svg9lu a2y, j,le.

  Which one of the following is associated with the law of conservation of energy xrq-w5q 9qeu3in fluids-9qquxr we35q?

  As the speed of a moving fluid incr /1b,cql q;gm.j6jmjkeases, the pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at point B is larg 3f umzlob t;(bg iekt;:lh+q. 16cg.ver than at point A. Where is the water prv( uchbltg:1;g+.lok. m6ef3 tz;ib qessure greatest?

  When you blow some aimao(8/ w3+hv h+z ycoor above a paper strip, the paper rises. This is because

  A sky diver falls through the air at termincnr)yg ;md5 j/ ()lkgdal velocity. The force of air resistance )kyn (rdl/gd; 5)mjgcon him is

  Two Styrofoam balls,9 g:3gerqw j1zp qk1c3 of radii R and 2R, are released simultaneously from a tall tower. Whiche1pjgkr1zqgc9 3:qw3 will reach the ground first?

  When a small spherical rock of radius r falls thr(h fg8pss7ak 6ough water, it experiences a drag agps f8(6h7ksforce $F=arv$, 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 na3f(s+* evz,vjieo6 ss; k,wr hrrow pipe? That is, if you made z6osvfrs(* ,ik+ewh ,;e vj3sa 10% change in each of the quantities below, which would cause the greatest change in the flow rate?

  Two horizontal pipes are the same l,t)xiyy8mt 3 zength, 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 it)my ,z3x tyi8n pipe A is Q, what is the flow rate in pipe B?

  Two horizontal pipes have the same diea*6nyx d 6i+pjq3,og 77ecry ameter, but pipe 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 floger y+6,*od 3nq6pa7ejyc 7 xiw rate in pipe B is Q, what is the flow rate in pipe A?

  When soup gets cold, it often yfyw)bo4e7x/i( g* rjbl(1t jtastes greasy. This "greasy" taste seems to be associated with oil spreading obgy( je4(w 1yt jxif7l*)r /bout all over the surface of the soup, instead of staying in little globules. To us "physikers", this is readily explained in terms of

  When a tube of diameter ikx;c w8ey 0r5g5nu*c xuk5m:d is placed in water, the water rises to a height h. If the diameter were gyw;08nke:x xm r*iuu5c5ck 5 half as great, how high would the water rise?

  Certain insects, such as the water bug, are sufficiently lightweight that they ch vt,7tq:soqg, iib--an 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, in a-qt- qvisth boi7:, ,gll 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, aroff:ng+dxq51e 5x -h ge 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. Suppo-5o: dq5h g1gff+nexxse 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 c41gz(uc)q9 l o g94jfa k;zyvpm x 3.00 cm x 4.00 cm has a mass of 30.0 g. What is its denkpo 4cj uz)94 qflvzgg1a;9 y(sity?

  A liquid has a specific gravity of 0.357.rv ubai 8mnb7dls3(k h0 4;tf8 What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 1tv 4jjza jp15d+/eni ,0.0 cm x 4.00 cm. What is the maximum pressure it can exert on a horizontal suji+j jva5zp,d/4nte1 rface?

  A person weighing 900 N is standing on snowshoes. Eac d1;dn. k/irf n(iqi+ah snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine with sqit)aib .zq:1 33wwdstand at a depth of 120.0 m in taz13:wqq .diswi t3b)he ocean?

  A circular window of 30 cm dia2ch h. y, dj+,wplnw9bmeter in a submarine can withstand a maximum force+dw c9 2wljpnh,h. b,y 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 kP9qjaj )n4 v w*)eht(jya?

  What is the gauge pressure at a location 15.0 m belo4z+mlonzqzy2 w:4-o.;dy .4bj i tskew the surface of sea? (The density of seaw4w+ je:;zz4tk- 4lmb2 oy iz.sqon.dyater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute vk/ea ij.a;)c1-bd wepressure at a location 15.0 m below the surface of sea? (The density of seawater i 1ea/bdkiwe-av )j.c;s $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small pe+: ws3ity*z8-q kd pdiston of a hydraulic machine. The small piston has yk p +t3: q8*iswdd-zearea $2.0 \; cm^{2}$. 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 and b zw:1jlbi*z 1*jo, isthe large piston has a radius of 15 cm. What force must be applied on the small lizjws, z 1o*b*ibj1 :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 asl cld1)c8 x:k 25 cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm diameter pistoncsck8 d x:l)l1 to accomplish this?

  The small piston of a hydraulic lift h:,ueofw 4zul;n o47 hxas a diameter of 8.0 cm, and its large piston has a diameter of 40 cm. The lift rh4u ; w7zo:x4,efunl oaises 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 r3jidg *3d1nkthe buoyant force ofgk3 *j nd1di3r the water?

  An object has a volud8p kwfixyh3d8 861wt me of $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of v4i,a0 uflquua2.ig;uq xar/)hg y;7 solid iron is supported by a string while submerged in wate;2 x g.ra/qi,hayaqglv04f7iuu; uu )r. What is the tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gold is a33bm ,wgiziko b x*d:w8/e)r$19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel s()t 4 /)m5xsplq28pqr ogvth hubmarine (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 q kmi6k 38j6kein water. What is the specific gravity of thk m36j6qk ie8ke object?

  A container of water is placed on a scale, and the scale reads 120 g. Now a 2 *yjxdu:x*p/h:ixn66 p xlfo+0-g piece of copper (specific gravity = 8.9) is suspendedxx*lp*u+:dx66y of:n jpihx/ 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 y / ,e;sis2oqu4z pz.xa 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- yy e6j)sgr-:hxz7yl cm will just barely float in wyy)6j e -xghryl- :s7zater. What is its mass?

  A rectangular box of negligible mass measures 5.0 jwmexr)zn1b +gi-x594y n k j;m long, 1.0 m wide, and 0.50 m high.9yjkgi1jr+n n- zw4 xx;eb)5m How many 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 half its volume beneath the surface of the;f llv-8/uljy0dg bt (5m(waj-rb x. t water. The weight of the displaced water is 2000 N. What is the weight of the objx8jr;dtj v/awbmu gt-5lb fy(.0l l( -ect?

  A solid object floats qhf1z4f8 u 6l,:46iyaxlh, qyqs igl:in water with three-fourths of its volume beneath the surface. What is the obje, ,yg4yh:f ihuxqlll8q46q:azsf i61ct's density?

  A 200-N object floats with three-fourths of its volemn )n4kd4ivuk1dy 0 lb:+ gq7ume beneath the surface of the water. What is the buo)k4unlnyedbg:qi170vm k+ d 4 yant force on the object?

  A polar bear of mass 200 kg stands on an ice 67 c,zl8fbi4dh y qq:gnw 959rtv3omk floe 100 cm thick. What is the minimum area of the floe that will just support the bear in saltwater of specific gravity 1.03? The specific gravity of ice is 0 yon6 ,:3fc7k wlt9gi8mqz 45vdrb9hq.98.

  Liquid flows through 362roxuv,dp) l k+mlva pipe of 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/s. There is a 2.0 cm dug2m ln+pgs6r5n(a j m5k+7qdve3mm 0iameter5 rn 0eu72k3gv+q+sn5 dm6gmjp( ml am restriction in the line. What is the velocity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with h9 v/hd+xqev2a 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 ixth5dioin0 zy rh;b9/8mk j91 s5)dq pump to supply a drinking fountain with 300 kPa, if the foun zri0bd5o khmi8j5h9dysi /;)nq1tx9tain is 30.0 m above the pump?

  A hole of radius 1.0 mbpkd+b0:9a1 re n r(omm occurs in the bottom of a water storage tank that holds water at a depth of 15 m. At what rate will wa0r9 1 +dbe ombk(pn:rater flow out of the hole?

  Water flows through a horizontal pipe of cross-sectional ;jqvp0 jgdawv.y9 q;4ol (v q7area $10.0 \; cm^{2}$ 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 viscositycbh4 8l kw((gp of 0.20 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 effectshw(l g 4pkc(8b due to the upper part of the funnel.

  Suppose that the build-up of fatty tissue on the wall of an a ngb8c6;tjg8o( m 9zhlrtery decreased the radi89c6n;ogt zj m8h(gbl us by 10%. By how much would the pressure provided by the heart 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 diamete oc:pv1e0w m q(ibjorah7z;* ,r of tube B. If water rises 24 cm in tw(j0p7mrqa,:ce* zoo;h vi 1 bube A, how high will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high *5q*bjn(qm z9ecb.wu will water rise in a capillary tube of diameter 1.2 u5.*bj z we*9mnq(qc bmm?

  232

  To what height would water at 0 degree Celsius rise in a glass cap(s-t5 m ql yckce71,gnillary tube with a diamet( ,ge51c7k nqlscmy t-er of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, anmhhq ro8ataz+jf8+z95rcapz 7 ,l,mg0 d 2b *ld 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. q ar275*tf,zmph 98a8g+ hzlzd +cml,bo ra0jWhat 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 so -w/a 9ohqh 4siq9np5eap film formed within its confined area. If the surface tension of soap959we o s4h-inpaq/qh y 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 width 5 cm, and iz i.vwt.2r6 bps 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 adj6tzb.wi. v2 rpustable long side so that the frame is 12 cm square?