The three common phases of matte2 10ub9xk7ec * qevkdvr are

  Density is

  Substance A has a densitr2z (oo3ta s5ly 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 o3qr ;n z6qig;l5ullw0ah-s ,7x jkg9y f pressure?

  Consider three drinking glasses. All three have the same area base, ku1fh 1c wq83oand all three are filled to the same depth with water. Glass A is cylindrical. Glass B is31k 1 oc8qwhuf 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 pressures inside and outside a l3cy 53ty) ojs i9su1utire called?

  When atmospheric pressure changes, what happens to the absolute press*dvlg 9u6(fom+ cmjii-dn)h6 ure at the botih6-mduijmf)l c*o6+v (d gn9 tom of a pool?

  You are originally 1.0 mw.pzz*g-:*2zw5qc;vt0 jl tx)pjr ff beneath the surface of a pool. If you dive to 2.0 m beneath the surface, what happens to the absr)ff -j:5c2*vlpp0tzwxt * q.gjzwz;olute pressure on you?

State Pascal's principyqd(yl)ixc ko0e,8w(f30q/i zivp k : le.

State Archimedes' principl2fef5i ,zq,4fjw k*s re.

  $50 \; cm^{3}$ 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 jcidzw:nw6k9 dg (v jtv/r*4.and deeper into water of constant density, what happens to t/wdd 4zvj9cv 6krijn .w gt*(:he buoyant force on it?

  Salt water has greate.pj ,r/lngk9 ir density than fresh water. A boat floats in both fresh water anlr9.g np/ijk, d in salt water. Where is the buoyant force greater on the boat?

  Salt water is more dense than fresh water. A ship floats in both fress 6z043bf2elgax0owb lb8p e (h water and salt water. Compared t3xe 60o8lfazb0es b plb w42(go 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 buo3l7dzery; hkaku bf9k- s 3-7eyant force on the ball zea-7f ydu79 -;kbk3k3sl her greater?

  A 10-kg piece of alumyp u(f/;vl0,yco ;narq*b(qa inum sits at the bottom of a lake, right next to a 10-kg piece of le pr0cnq a;vf(q/,*b ylu ao;y(ad. 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 ther +aza-ddq: o 0wegd+ dnas/:6ok6x :p iron is removed from the wood, what happens to the water level in the tub o6 oswke-+0 zdranaa gqd::+d/6pxd :?

  A piece of wood is floating in a bathtub. A second p j.k6sxfxkt nzx).)q 6iece of wood sits on top of the first piece, and does not touch the wate q ..f6)kxjxs6k)tzn xr. 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 Bw. : f)6y)1dvl id gmw(bra6,3xkaque is larger than at point A. Where is the speed of the water greaxb,e)ddwfu:m y6.6k)a1ra(qg3 wilvter?

  An ideal fluid flows akte:54jtg8 vo t 12 m/s in a horizontal pipe. If the pipe widens to twice its original r85 g ovtjek4t:adius, 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 halj9w6/ 9geve vsf its original radius, what is the flow speed in the narrowers9 e9 ew/vjgv6 section?

State Bernoulli's princjfd-/vfq v+qk2j0w7dywd; j+ iple.

  Which one of the following is associated with the law ) *impf b**vniof conservation of energy in v i**n*i) bfmpfluids?

  As the speed of a moving fluid incref5. x)tec c :iwqn*sg1ases, the pressure in the fluid

  Water flows through a pipe. Th+1;q 8j3b ,iyzuplyvn e diameter of the pipe at point B is larger than at point A. Where is the water presq1 uz8v,np +y;blijy3sure greatest?

  When you blow some air aurlh3v2o 7o v0bove a paper strip, the paper rises. This is because

  A sky diver falls through chc mq(.s r e.8)2hbgu2 wxrd3the air at terminal velocity. The force of air resistance on hsqwh.b)cdx r.(m8 r2 hgcu32eim is

  Two Styrofoam balls, of radii c5 x *yx/e9jh5muaud; R and 2R, are released simultaneously from a tall tower. Whc;ah je/ xmyux5u* d59ich will reach the ground first?

  When a small spherical rock of radius r falls through water, it experienkm 2u d 1xq.roh.vq63zces a drag force.k3hr.uqdxm z2vqo61 $F=arv$, 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 throughxft a3a5f9ybajp.11 m a narrow pipe? That is, if you made a 10% change in each of the quant1a aa.1fb5 myj39fpx tities below, which would cause the greatest change in the flow rate?

  Two horizontal pipes are the same length, but pipe B has twice the diameter of par:,b/si-h k f2o.ua ripe A. Water undergoes viscous flow in ba r/ushb,2 -:fka.o rioth 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/4.(ptoerpxl , /o wx v-,ikcg long as pipe A. Water undergoes viscous flow in both pipes, subject to t4-/ t g/ vx,ok,cl ewrp.xpio(he 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 ofu4f 2xyp4;sikten tastes greasy. This "greasy" taste seems to be associated with oil spreading out all over the surface of the4u ;si2k px4yf soup, instead of staying in little globules. To us "physikers", this is readily explained in terms of

  When a tube of diameter d is plaoog)lz js. n);ced in water, the water rises to a height h. If the diameter were half as great, how high would the water rise? jog)on.zsl;)

  Certain insects, such as the water bug, are sufficiently lightwz1 .tfj7 fi+dwpvhg4(dv:/xr eight 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 b4dpwdih(g +/ v1 rvx7tz:f.f jig 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 lightweight thao/r+q hw*zi 3mt they can run on top of water without breaking the surih wqozm/+3* rface 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 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 ma n i pfr6:mynm c93*sy3av7;ptss of 30.0 g. What is its dm 3 v63ms9t*yp 7nnf;iacr y:pensity?

  A liquid has a specific gravity of 0.357. What is its del34d5*- j 9 w kladg(8uhnzudcnsity?

  A brick weighs 50.0 N, an2w k 2f2ip;ldbd measures 30.0 cm x 10.0 cm x 4.00 cm. What is the maximum preiwd;2b2kl2p fssure it can exert on a horizontal surface?

  A person weighing 900 N is standlu3q/m8nn /zs ing on snowshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand at a depth of 120. 5a mrg/n+keu*0 m in the m* ukgr/+ nae5ocean?

  A circular window of 30 cm dixcw7v1j1dh80e8q d25sk 5f6n ze udj nameter in a submarine can withstand a maximum force e8jq2s07d15kj dn 8f5hvzdxcwe u n16of $5.20 \times 10^{5} \; N$. What is the maximum depth in a lake to which the submarine can go without damaging the window?

  What is the gauge pressure 498lhbskt y:q r10zuv if the absolute pressure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below the surfaos0i7edou y(2 atvi.. ce of sea? (The densi.toyv2iod .0eu s7 ai(ty of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below the surface of see nqduq:iu 82b9fkt37a? (The dq 8q73t i2nbkduu:9ef ensity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a kr z64+mnao+u hydraulic machine. The small piston has area 46+okm zn+rau $2.0 \; cm^{2}$. If the large piston has area $40 \; cm^{2}$, how much weight can the large piston support?

  In a hydraulic garage lift, the sma.qq/ fr )ajtvx/ 64nxdll piston has a radius of 5.0 cm and the large piston has a radius of 15 cm. What force must be applied on the smalqqfxn rj/4 )taxvd. /6l 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 hydraulic piston. s;zm1n ;l )dwcawqd7e-y ;0bj What force needs ; ;7awebds-ymqwc1nl 0;zd j )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, andph x4mux6pjng/va.7+ its large piston hp4a6u7n.x x g/p mhj+vas 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 buoyant f6fra gsz8 56yy14sxy p rsp56iorce of the wate5 s1rsyszf pxa6gi648 y y6pr5r?

  An object has a volum+ +l 58aw8 nef d6p;gx-ej xejsoy(ux/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 0id-t25b0. mbej bx;.jzicbq iron is supported by a string while submerged in water. What is the tension in the string? (The specific gravity of iron is.i2jm q0 0;5t.izb- bcxejbb d 7.86.)

  If the density of gold is o8 spc2bfb 5;o.y vh)n$19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submariku8dxaznjjc) ls) xci/*727ine (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 o6ns r v5i9fx,N when it is immersed in water. What is the specific5 vfi6 9sx,ron gravity of the object?

  A container of water is placed on a scale, and the scale reads 120 g. Now a 20- *xmy h fl.jm+a+t ) zo/c41h*q9di6nncp-xkqg piece of copper (specific gravity = 8.9) is suspended from a thread anox-y1l9 khtmnanj +6fz q xmh+**.4 )cpi/qdcd 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 30,99oopyyzfb a,lr3f iqw*/s cxgr3 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 cmrqtv8 8lfrf-3 will just barely float in w8rfq3l -ft 8vrater. What is its mass?

  A rectangular box of negligible mass measutolj 04)gtkr7 ot j/mrem,-6mres 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be ltj)7mk -o ,tj mgr/e04 l6otmroaded 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 benehhnpsf-, o+5kath the surface of the water. The weight of the displaced water is 2000 N. What is-,5p kho+hf ns the weight of the object?

  A solid object floats in water with three-fourths of its volume beneath the l,fxd qzun+5 f7n3;8jm1 iee ysurface. What is thex y; 8fqnl+n5f d137zmieuej, object's density?

  A 200-N object floats with three-fourths of its volume beneath th igrs )(g)r, dtfj++bg 5ua:pje surface of the water. What is the t +)f iajpd(rg ,gug5)j+ s:rbbuoyant force on the object?

  A polar bear of mass 200 k44z0wo wcthxs; t ifyqi 4 vqvs8876v3+jl wn5g stands on an ice floe 100 cm thick. What is the minimum area of the floe that will just support the bear in saltwater of specif;i7svw8tsyvwc6+lhnv4405z 8 3 w4 qto fxqij ic gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pipe of diai) 3qvs9m)yb dmeter 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 zj3 ogs cm*2y,4gv8 pta 2.0 cm diameter restriction *sogyvzt3p 2 8j4gm,cin the line. What is the velocity in this restriction?

  Water flows at 12 m/s in ag 3ro66vtcgl9jgi (/0p g; jhi 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 doebk30ipkc7j : sx7t; qv83e hngs it take for a pump to supply a drinking fountain with 300 kPa, if the fountain is 30.0 m abo ht 8eq:nvik0g c b33xpkj7;s7ve the pump?

  A hole of radius 1.0 mm occurs in the bott5,fn o*fetde xmm4nts*b c(sj 6ks6+( om of a water storage tank that holds water at a depth of 15 m. At what r* ts+,cb efmd6e*k ((f sxo54nsn6jt mate will water flow out of the hole?

  Water flows through a horizonvrvv7cq+b6 u 3q4/3h (mfo el rxn+/xptal 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 apzrk m( 53i.zh-oyei9 viscosity 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 effects due to the upper part of the funnel.. k5- hipim 3zrey9(oz

  Suppose that the build-up of fatty tissue on the wall of an artery decreased tq, wf ojxflhu8 /tz-+1 sci(s4he radius by 10%. By how much would the pressure sf(oszhl / q1 cf u+4,xj8t-iwprovided by the heart have to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of water+wqh 7y dw 5vkj0izb--. Tube A has twice the diameter of tube B. If water rises 24 cm in tube A, how higdh7-wzqkwi5 y j b+0v-h will it rise in tube B?

  The surface tension of water is 0.073 N/crj44b0v nj82zd w0dx m. How high will water rise in a capillary tube of diameter 1.2 4b4cxz jd2 r0dj08n wvmm?

  232

  To what height would water at 0 degree Celsius rise ijn br emxs75 (a*acowwd)8 *f)n a glass capillary tube with( axa5j*nb wo7s8))cme r* dfw a diameter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and the wjn + n-1 ral)xvehdkk/ ; rw)fd1sf).zater 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 to the height of the liquid column j hr s+f; e kn1.1zwd)fx-rnvkd)la/)in the tube?

  Consider a rectangular frame of length 0.120 m an wmdmbkxt-g v523;9wn d width 0.600 m with a soap film formed withi2-kbw mnwgv95m3;xtdn 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 l-sfo9-u( klh zength 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 lf-ozhs-u( k 9frame. Soapy water has 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?