The three common phase7 ys4damo/ 0lls of matter are

  Density is

  Substance A has a density of6cacpuol z2 a 3cnohiw)0 18(z $3.0 \; g/cm^{3}$ 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 pressu10r n5hmmwr 2ere?

  Consider three drinking glasses. All three (nwe*6 o(fqb w8zl .cihave 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 l(q o8zif( 6wenbcw .*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 betweuglvu/( an 6z+en the pressures inside and outside a tire called?

  When atmospheric pressure changes, what happens to th6d fja 65:+yck/j ukpce absolute pressure at the bottom of a poodj :/yjkp6a5f6cuc +k l?

  You are originally 1.0 m beneath the surface of :ceoydd( 2uf2 m-hjluz0 4z3ka pool. If you dive to 2.0 m beneath the surface, wudlzejyd 032fkuo( 24h:zm c-hat happens to the absolute pressure on you?

State Pascal's principle/,t4k9w6y bp yrjf k 0znmp.6c.

State Archimedes' principlc2ofqzc zjnzbr95 1/1e.

  $50 \; cm^{3}$ 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* f*k6)zb xucet4g7 1: zn-2 jxxrmujg happens to the buoyant forcz*kn1xb :)ugufcj-rmg7 xztj x4*26 e e on it?

  Salt water has greater density than fresh water. A boat floats in both freswwt (s) f +cstbg+/kb;-kzjcubd3. e, h water and in salt w , sjbbfu+z)tt(. esw+ dkbgcc;/w-3kater. Where is the buoyant force greater on the boat?

  Salt water is more dense than fresh water. A ship fa3j2 aspr/x*rloats in both fresh water and salt water. Compared to the fresh water, the volume of water dir2/s 3*rpaaj xsplaced in the salt water is

  A steel ball sinks in water but floats in a pool of mercury. Where is th(b e dc6 6ync6iuyx)m/e buoyant force on the ballcuy6c)m6/dbi y6(x ne greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg p;os uue; a,,ut3) eo.whk4wis iece of lead. Which has the greater b uk,u,os;ute h)s4.oe a;3iww uoyant force on it?

  A piece of iron rests on ya4cipirp (bp :7aku3a d0+t/ top of a piece of wood floating in a bathtub. If the iron is removed from the wood,4uac0kai ydbr +tp:ip/ 3p7(a what happens to the water level in the tub?

  A piece of wood is floating in a bathtub. A second piece of wood sw-ujlpq35q (q its on top of the first piece, and does not touch the water. (5uq qlpqj -w3 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 Bqfdh:2e ke949l h0 7px5vmkwx is larger than at plh9xq4 75hkekdw2:exm9 fp0voint A. Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. Ifh aaqm1+xtx9.fv ,ailk:ts5e2h :a )m the pipe widens to twice its original radius, what is the flow speed in the wider sectionx1fmix9 v5eah: tlh,s +a)aa. m2tq:k?

  An ideal fluid flows at 12 m/s in a horizontal pipe. I z)q6,qt;zw/s a,kket f the pipe narrows to half its original radius, what is the flow speed in the narrower sectiow, )qkk6,tz /tzsq ;aen?

State Bernoulli's principnjo9eoqtq+ ef x e, *)g7i984syaxe z-le.

  Which one of the following is associaqtb *d)0 iu 2u7mmqtp:ted with the law of conservation of energy in : bm) udp 0tq*iqu72tmfluids?

  As the speed of a moving fluid incr stn*i2: p*uu7cu nt6reases, the pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at point B is larger than 09c- t xbe,bmxi/lo8 rvwlh)fv s2 ,j2at point A. Where is the water pressu 9lf 0/m, evcj-2x tb,v r)2shxlwio8bre greatest?

  When you blow some air abovejww m*uvd+a: di()xvbpr3 -i; a paper strip, the paper rises. This is because

  A sky diver falls through the air atlfsdy(q,jjrj, k +.k4unfe; :f0gv j3 terminal velocity. The force of air resistanc: g fjqrsyk,,.v4(3k; j 0ue dj+lffjne on him is

  Two Styrofoam balls, zq4y gy1;)mj pof radii R and 2R, are released simultaneously from a tall tower.4y y;pzmjg1)q Which will reach the ground first?

  When a small spherical rock of radius r falls through water, it expi -6nzr 51; gdloaox0ff6c 6lkeriences a drag force6iz-ll5 o6;a f61gx ocfndrk0 $F=arv$, 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 thrla 9hb lsma;t7*deh3n+3)pseough a narrow pipe? That is, if yopa+l; a)se37dsmht bn3eh9l * u made a 10% change in each of the quantities below, which would cause the greatest change in the flow rate?

  Two horizontal pipes are the same length, but pipe B has twicex+w3:b 3v o9sndb jx8 dzj-r:f the diameter of pipe A. Water undergoes viscous flow in both pipdz3jbdv: :xj o +fn-wx8r 93sbes, 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, bueg;4 *dnga 7njt 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 flow rate in pipe B is Q, what is the flow rat nd; 7ngeg*ja4e in pipe A?

  When soup gets cold, it often tastes greasy. This v.)o2ghnk3n/ lqrl t6"greasy" taste seems to be associated with oil spreading orvg2tk )3.nhq6l/ nlo ut 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 d is placed in water, the water rises to a height h.mewt*2ekpa 3yp7(t6 k If the diameter were hal(t7p y32 wtekm*6eakp f as great, how high would the water rise?

  Certain insects, such as the water bug, are sq)xwaxz x v t zo/z/q63n28ow,ufficiently lightweight that they can run on top of water without breaking the surface tension. Water bug A has w,vzxq3/ qwa)o/z n xzw 2xo6t8eight 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 lightqlh-nr:an;1 vweight 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. 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 fe ;lvh1nnar:-q et of bug B?

  A plastic block of dimensions 2.00 cm x 3.00 cm x 4.00 cm has a ma99xuas bsnr i6i*d:da7 8lw k9ss of 30.0 g. What is its 8x96nlsu dw s akb*9a7di9: ridensity?

  A liquid has a specific gravity of 0.357. What is u-(0ril ilha,v,.dom its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm. What ogm3z9+ dj :1yet/hnyr12v(3jsiawq 4r uv4his the maximum pressure it can exert on a horizontal /1r4zu( aw4odvget+1hv23mqh yji y: j3rs9 nsurface?

  A person weighing 900 N is standing on snowshoes. Each snowshoe has l) .bkd 4c9eu o)opzd,area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absoluq mp*+gj34u3nqj1phc te) must a submarine withstand at a depth of 120.0 m in p3gn *q+jp1c43qhjmuthe ocean?

  A circular window of 30 cm diameter in a submarine can with +gpx e0*pi:q.d6qbh-z7zk restand a maximum force of -67 ezqqeb.zp0kd:*h +rpxig$5.20 \times 10^{5} \; N$. What is the maximum depth in a lake to which the submarine can go without damaging the window?

  What is the gauge pressurgph7euy67 ul1p pq40v, y7jt nzx v*9me if the absolute pressure is 300 kPa?

  What is the gauge pressure at a location 15.0 m b 8ig ghp0:e6 ca.9vsuadh e.i:elow the surface of sea? (The density of seawater is ehgsaeu 8v.hca6.0ig: dpi 9:$1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below thmy5ufsr mwmqrb21u k* e-;he66-:wl ge surface of sea? (Ther6u;-g5h*62ksr-wb f emlme1mwyu q : density of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydraulic machine. The smallv) j(2r7m-l ptv rhkmwh5j5f 2 piston hasrt25 5mrhjl7j2v(fw)v p- k hm 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 pisn7tz(n(84gld;ib1 uc fjdop/ton 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 carcglubn/ pdofd;48t(i z 7n1 (j weighing 20,000 N on the large piston?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter hydraulic pistodz6 bpw vz2:s-d3p6r p3uy 5bkn. What force needs to be applied to a 5.0 cm diameter piston to accomplish thivudzs5pzp33 d:rpb2 b6k- w6ys?

  The small piston of a hydraulic lift has a diameter of 8.0 cm, and it*f8kqpov ,,uixmc- +e- bhkou90 dqx3s large piston has a diameter of 40 cm. The lift raises a load 3ckf x o- -v ,p* xku0m,qoq8duib9eh+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 fvrg2r1h t5faunws;*, orce of trg swfh;u5v ,1atr*2nhe water?

  An object has a volume o7f aq ajt2+r 3ar:+flmf $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of so)hg+ yq1ov tq:z+g .qslid iron is supported by a string while submerged in water. Whaty:hg g+q t)1qq+.vosz is the tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gold is gp9 .0-frssiqvhyh-/-xo 2- sr6z grv1zto: q $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarine (density = t sr+pac, z4+l$7.8 \times 10^3 \; kg/m^{3}$) 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 r,x:5 tlg:ug tis immersed in water. What is thexr gtt:u,g l:5 specific gravity of the object?

  A container of water is placed on a scale, and the scale reads 1q3ly u yy5v )k,92lpyp20 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and lowerey yy9qv)plk yp5,u32ld into the water, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum withwo,id wut 7m3,tge.h 32 i2rjs a 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 cm will just barely float pn wij -:mm(:lin water. Wha-mn(:w jml pi:t is its mass?

  A rectangular box of negligible mass measures 5.0 m 1a33g:zqadygk u )hg9au1* u klong, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loaded onto the box before it sinks i31q9 haa1g ykauk*u:)zggud3n 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 bene2v 98*jizocgrcq(-v w ath the surface of the water. The weight of the displaced water is 2000 N9g*j2qi vwv-c8co(z r. What is the weight of the object?

  A solid object floats in water with three-fourths of 5xi*3lv3fc e bits volume beneath the surface. What is the ob*3vle5x 3f icbject's density?

  A 200-N object floats with three-fourths of its volume va*u 3ob)*za+ untv7( fbry+plm5 l c5beneath the surface of the water. What is the buoyant fllz5ft+r(7 yu*b5 mvvan 3o)b au* +cporce on the object?

  A polar bear of mass 200 kg stands on an2porgj oj*wp rp63:f6mr yjec);:-jr ice 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 s:mprpprcryoe2jj3o 6j- ) ;:6r *gjfw pecific gravity of ice is 0.98.

  Liquid flows through a pipe of diameter 3.0 cm at 2.0 m/s. g*nee/nwl9l.xl1 d v:Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe at nbq1x*wa5ll)eo08 r h1.0 m/s. There is a 2.0 cm diameerl oaw 5h*1 )lb0n8qxter restriction in the line. What is the velocity in this restriction?

  Water flows at 12 m/s in a.ftebi 8czv y-s) 3v v45)h2so4yo gyy 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 to supply a drinking f3v taovj + o0j;r9x6bpountain with 300 kPa, if 3bjaj6ot9 vp+;rv0ox the fountain is 30.0 m above the pump?

  A hole of radius 1.0 mm occur-*m ved9n +irus in the bottom of a water storage tank that holds water at a depth of 15 m. At what rate will water flow out of 9*r u+v de-inmthe hole?

  Water flows through a horizontal pc7pqz4. tc;ye2aocf . ipe 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 long would it take to aq-9/e (vy9u8 pthohcpour 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 t uehh -p(avoyc98 /9qthe top of the neck, and neglect any drag effects due to the upper part of the funnel.

  Suppose that the build-up of fatty tissue on the wall of an artery decreased the;)60ob4orcx o1 *7gjcls1hioxe5hz h radius by 10%. By how much would the pressure provided by the heart have to be increased to ma)7hz5o*g o hhi x164ccxlb e0sooj ;r1intain a constant blood flow?

  Two narrow tubes are placed in a pan of water. Tube A hv84lcm0jke4 il:* *-beoya+ q/a ahpoas twice the diameter of b p+ jla-:kvq *l4*o ym8 ae0oc4/ehaitube B. If water rises 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 i m;ni lhx4308ko *lospn a capillary 3om ns4;kp*lhx8i o l0tube of diameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capillary cs: iu/ u4v22wqn0a+y nzbzi2 tube with a diametezv iq/u22sua4y+0n :z 2 bncwir of
0.50 mm?

  A narrow tube is placed vertf 12r:xn k2aohically 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 soap. What haprk2na:f o1h 2xpens to the height of the liquid column in the tube?

  Consider a rectangular frame of length 0.f+jal*wr 8: ole6o.4 0jpskme120 m and width 0.600 m with a soap film formed within its confined area. If the surface tension akpws e+o :je6.48*lm jorfl0of 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 width 5 cm, andc*-4s1qe - cy(rheud tf( sq,wo*usm3 is built in such a way that one of the longer sides can be movwscu3to,r-u*e qce-yqf ( 4 hd1*sms (ed 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 adjustable long side so that the frame is 12 cm square?