The three common phases ;un w9ebgffx ;v h)23kal l5)mof matter are

  Density is

  Substance A has a densityciv0 ek7gg(/uzb3 1hr j.,p*g -f/7fk dk ufby 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 id/r+x ij/f oq6yse )xp8 ds a4m*/q/ebs not a unit of pressure?

  Consider three drinking glasses.k+ * n (fd9efpucdr,0u All three have the same area base, and all three are filled to the same depth with water. Glass A is cylindricfp,*d 9rc u(f0k +edunal. 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 pressures insidf:pu./-hf t c4c b+aahe and outside a tire called?

  When atmospheric pressure changes, whau)(a .gvgai 0o .(vqtjdzhp6 4t happens to the absolute pressure at the bottom of a poo ov gqzvupaaigj((dt 0.46.)hl?

  You are originally 1.0 m beneath the surface of oxdz 9/y1z, l- beaob( 6u)ma lcf,*baa pool. If you dive to 2.0 m beneath the surface,b( my61 a/,xu9cloebfl-dazzb)o*, a what happens to the absolute pressure on you?

State Pascal's principle.ijv)l;wen6 /ws.1 mpm

State Archimedes' principllxl(-lcug 5t; e.

  $50 \; cm^{3}$ 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 duw0pw o2x; ,sf4ar92iwv3vx deeper into water of constant density, what happens to the buoyanu0vd23;ivw4so wpf9 xw2rx a, t force on it?

  Salt water has greater density than fresh water. A boat floats in bm+ctd / oecx*.oth fresh water and in /x d.*mecct +osalt water. Where is the buoyant force greater on the boat?

  Salt water is more dense than fl; h yz(8 37xu y)lgt0ozahb,iresh water. A ship floats in both fresh water and salt water. Compared to the fresh water, the volume of water displaced in thua0b ;t oi,8y3y(z7)hgx l hlze salt water is

  A steel ball sinks in water but floats i/d bx f*p:1ckdn a pool of mercury. Where is the buoyant force oncd:*p/dx f1kb the ball greater?

  A 10-kg piece of aluminum sits at the bottom of a l qkjlw86f xpnxf8- :+ioy18st/d sa-cake, right next to a 10-kg piece of lead. Which has the greater buoyant fpf6 88-s:o danx 1f +ckqlt ysx-w/8jiorce on it?

  A piece of iron rests on iq. zzxpax/t ;cub)9h5iu-fxe n0, o- top of a piece of wood floating in a bathtub. If the iron is removed from the wood, what happens to the water level i.cfe i5-,q xz-)unoxath0 ; i9ub/pzxn the tub?

  A piece of wood is floatin rb 6j:4.u yp 1r6qx1ggh5zzzr;x; hhbg in a bathtub. A second piece of wood sits on top of the first piece, and does not touch the water. If the top puxhj g x.:5rz;qbh pzh16614 g;rbryziece is taken off and placed in the water, what happens to the water level in the tub?

  Water flows through a pipe. The diruww r8a zp;caf)fk; )b3:lpiz (c+5iameter of the pipe at point B is larger than at point A. Where is the speed of the wat+p8if; a r5)kub:(zcf3; )arz wpi clwer greater?

  An ideal fluid flows at 12 m/s in a j120ecdgww78xl qr0)bq.a0mg x q xr(horizontal pipe. If the pipe widens to twice its original 0xr e)xcq 2j0q7g 8m(rwabqx1wg0 ld .radius, what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. Ia hfyb/y3v (; 6u0xdr*u 9n3xgj )cdt4ohhxd: f the pipe narrows to half its original radius, what is the flow speed in the narrower sectf9 gd:o)dyb/h*hdaxv n604xyutr;x hc (3j3uion?

State Bernoulli's pris zyp+ 0c (x-op.rq;xmnciple.

  Which one of the following is associated with the law of8w r-)99u u vjd: ttvus9ogkq+v0i r/f conservation of energy in fluidokd9ruif)s / q+9t 8t rvvu:jwv0u9-gs?

  As the speed of a movinj4t+)p-z zkp/g) cpuxg fluid increases, the pressure in the fluid

  Water flows through a pipe. The diaug*jp 8wr 1bz oq./huh6)r:ermeter of the pipe at point B is larger than at poiw*1 pqbhrh: u6g)/erzr j8ou.nt A. Where is the water pressure greatest?

  When you blow some air above a paper strip, the paper rises. This is becvs/sk 3/o,. 8pc6pbdg lbi;qkause

  A sky diver falls through the air at terminal velocity. Tc3nca j7kt j6ol(rf80he force of air resistance on him i(n fc7a jk3t860 crojls

  Two Styrofoam balls, of radii R and 2R, arg;5zadtu.j4wz6 m7 nhe released simultaneously from a tall tower. W6n .mdgz;5ju7wa ht4zhich will reach the ground first?

  When a small spherical rocky182w.yh 82nwwyw ax(cehv: p of radius r falls through water, it experiences a drag f1xyww 2hchw:2v wy ep8y (an.8orce $F=arv$, 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 effectop0x4,zlwv fz v ;d*.c on the flow of fluid through a narrow pipe? That is, if you made a 10% change in each of the quantities below, which would cause the greatest fzco vx*,4z0d;pl .vwchange in the flow rate?

  Two horizontal pipes are the same length,e ;,dal vr*zf tcpvkq06;3 qv- 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 in pq vvv rea pk;c6t,;0zdf- lq*3ipe B?

  Two horizontal pipes have tha,p2pw3 qc, uoe same diameter, but pipe B is twice as long as pipe A. Water undergoes viscous flow in both pipes,uqp poc a2w,,3 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, it often tasted xjy v2f60:w7fb4c lts greasy. This "greasy" taste seems to be associated with oil spreading out all over the surface yt 7dvx l62 bjf:f40cwof 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. zdo;w,w5 luo.g) w0xi If the diameter were half as great; wi)ouxdg5zw l, 0o.w, how high would the water rise?

  Certain insects, such as the water bug, arb7rqt( axa;7p e sufficiently lightweight that they can run on top of water without breaking the surface tension. Water bug A has weight W. Water bug B is twice at7 aprqa(7x; bs 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 b d4 alavvr8+i.ug, are sufficiently lightweight that they can run on top of w+ 8.rvaia4dlvater 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 feet of bug B?

  A plastic block of dimensions 2.00 cm x 3.00 cm x 4.00 cm has a mass ofn; l, xy2ird-a 30.0 g. nly drx; 2-ia, What is its density?

  A liquid has a specific i j l;n+pnl1u7gravity of 0.357. What is its density?

  A brick weighs 50.0 N, and mzxq+mwo p8pzrt 3e**6 easures 30.0 cm x 10.0 cm x 4.00 cm. What is the maximum pressure itxptzpew8*m3 *z+ roq6 can exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each sno 8oe).0sebt8;s degizwshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolu;/q))vhwf6 c)hc;hxl 3ym du hte) must a submarine withstand at a depth of 120.0 m in the oceanhd h3umcy)q)hw6hv l) x; c;f/?

  A circular window of 30 cm diiti(* j8r +tvt 8-thrzameter in a submarine can withstand a maximum force of hr -+tiizt8v tj*8(r t$5.20 \times 10^{5} \; N$. 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 kPsa6oh*lt90jd3uq .nh:t * eoaa?

  What is the gauge pressubjufb8op v txg5;1(/li;j jimm,+, uure at a location 15.0 m below the surface of sea? (The density of seawatef;imj+8p /ot vglj;iu 5b1(bxum,, jur is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below the surface of sea?jvv; i3.sjf 2g (The de2if3s gj j;vv.nsity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of an6l*3kzhs1yl; ,b/u) vlm ql p hydraulic machine. The small piston has areahm*;v6 pz)ly,buk3 /l 1 sllqn $2.0 \; cm^{2}$. 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 hagjg9/pga3mq/ c;ue8 g s a radius of 5.0 cm and the large piston has a radius of 15 cm. What force must be applied on the small pistop9g/ 8g/3 jq;agumce gn in order to lift a car weighing 20,000 N on the large piston?

  A 13,000 N vehicle is to be lifted b,: 2k vwk1onrn eobp.8y a 25 cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm diameoe kro:.8 k wp,nn12bvter piston to accomplish this?

  The small piston of a hydraulic lift 6wogy/dqmrz39a)sgupo,49 +er- ahahsx 6:khas a diameter of 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a loa 4 g,9ar/wak 3m6ud qo9) sza6:rhxog+ -hepsyd 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 ++d xwv. mxyznfz z3 h4j3x;az*b ry,(pq.6 ud40 N in air and 30 N in water. What is the buoyant force of thnh+z(j+vmud x.ba6*f.yryxp3 4 z3 ;, zwxqzde water?

  An object has a volume ofoh:p ; ok7vpx* $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder o6p jrq/ymfu 8b6up s5s.p vxgj8s 13x:f solid iron is supported by a string while submerged in water. What is 8:j8s.ufry / s1vpsm 6 53gqb6xpjpux the tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gold iszkg :qeeizg/o: (j 1,i $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel otwwg+s 8 1 qt)f3,c2iumc9bxsubmarine (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 immer4(n8p l,8 m)/qod. tdweyk fbbsed in water. d/kwtf8loe4m)d 8 (,n .by pbq What is the specific gravity of the object?

  A container of water isyf57mlrn -2s ;uvf,qv placed on a scale, and the scale reads 120 g. Now a 20-g piece of copper (l; mrv- sfu2q7vyn5,f 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 oyss:w 51+6iz rh n/ya0e a8lpcf 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 justwd .f4bt 3 sdmo9q0p7b barely float in water. What is its mas3 mpbq4 od9wd70 t.sfbs?

  A rectangular box of neglig ql j e5+x**8otavc-d7q w0noiible mass measures 5.0 m long, 1.0 m wide, and 0.50 m qtjdqvlw*e7ao i+ -c80no5x*high. 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 /ky ba4i:er j2 8gdka8its volume beneath the surface of the water. The weight of the displaced water is 2000 N. What is the weight of the b4 rk 28:yeig jk/aa8dobject?

  A solid object floats in water with three-fourths of its volume beneath the sudo6g:(ypmze2+q29nkxr j, oq rface. What is tzx2y j qr9p(6 egmqo+do: n,2khe object's density?

  A 200-N object floats with isgq5 q2,(df:ymx7e j three-fourths of its volume beneath the surface of the water. What is the buoyant force on the obj gqj2(q5yfxmie :7,dsect?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What is fgvw;v, c3- ,mkvjpr1d hgn)8 the minimum area of the floe that will just support the bear in18wh) grdcfm3p g vkv-;jn, ,v saltwater of specific gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pipe of diameter 3.0 cm at 2.0 m/s. Find the fs6,cp0b; ghls uv3l d/low rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0wb5 .gwts a6:a m/s. There is a 2.0 cm diameter restriction in the line. What is the velocity t6ga5: w.bsw ain this restriction?

  Water flows at 12 m/s in a horizon792bu1t6c/s zx.4 kaf+ pxdhfye0qvqtal 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 pujhq r3z 9 zx3u)(6x najvs2:z2gk;ushmp to supply a drinking fountain with 300 kPa, if the fountain is 30)2(2sj:396 jxuhk ;uazhzgn rqs x zv3.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of a water storage t(eggw)q1/22jgxr y cfank that holds water at agxefygr 2(12j gq)wc / depth of 15 m. At what rate will water flow out of the hole?

  Water flows through a horizontal pipe os)c0i-ed1x0tuos/ lwc3 s se.f 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. Hxs csph zmsh, )w*p5r )0-b6qsow long would it take to pour 4.0 L of oil through a funnel with a neck 15 cm lhhcxz) 5s,ws mp)*ss-bq60r pong 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.

  Suppose that the build-up of fatty tissue on the wall of an artery decreasedwb2xd; rd1h /3gv ps*1p,d fvb the radius by 10%.1*hpdx1bwd,vgvd fs; b2r/3p 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 Arfy kb7;sdt+jvi4 /2k has twice the diameter of tube B. If water rises 24 cm in tube A, +; v bjfit74 kk/2sydrhow high will it rise in tube B?

  The surface tension ofmk4 -arg7a ;+d 0 ooep9q2czp5axi+ wk water is 0.073 N/m. How high will water rise in a capillary tube of diameter 1.2 mm ;0a rk4a9gxiwp7q em zcp+5-2kod+ao?

  232

  To what height would water ;1kmlc5e xuo8 at 0 degree Celsius rise in a glass capillary tube with a diametelom8cxuke; 51 r of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and the water rises in theu npvf kngu)y0*a3 xh/x 2mm,y 3s16lu 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 m ysl1p,yu236 3 u u )xakxfvnnh0/gm*some soap. What happens to the height of the liquid column in the tube?

  Consider a rectangular frame of length 0.120 hnjk0d wrygeygyx- :10-4y4rkq: n7 v m and width 0.600 m with a soap film formed within its confined area. If the surface tension of soapy water is 0.0260 N/m, how much forc kh eg:-gv1j4knxd w 0y47 q0-yyrr:nye does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and width 5 cm, and is buil5rdvrwcf ;r-4 t in such a way that one of the longer sides can be moved without bursting rwfc5r r- v;d4the 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?