The three common phases of matterisnw xd)g6 e1* are

  Density is

  Substance A has a density 4nnwxr o7 w-:lxn)t0iof $3.0 \; g/cm^{3}$ 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 0 bx8wu2t2bauure?

  Consider three drinking glasses. jikz mq+knq0( rvsp06 qg fu3:v8( qy5 All three have the same area base, and all three are fq:jri(8m vq5vzsgn(q0+kkup y 06fq3illed 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 pre lju9:t97 xywh i)yk; 6lbqx6rssures inside and outside a tire called?

  When atmospheric pressure chang0w4enb.ts.cys:7( rw u1mcf4mlogz ; es, what happens to the absolute pressure at the (u 7s gcyemr4b.mtswno;4clf 0.:1 zw bottom of a pool?

  You are originally 1.0 m beneath the surface of a pool. mq tj5v(/8 hsxIf you dive to 2.0 m beneath the surface, what happens to hmt s85j/qxv( the absolute pressure on you?

State Pascal's princiyft mfzzk 2i-3tx r278bbre1(ple.

State Archimedes' pr.yw -m-ui7u/jqz::p6h k yxg rinciple.

  $50 \; cm^{3}$ 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 g(vq( n*;qph;uda l an;a 1;vudensity, what happens tovgha( *n1uv a;aq(; ;;dlnuqp the buoyant force on it?

  Salt water has greater density than fresh w+7z zscre*iaxvc d c5 lrz7)4)ater. A boat floats in both fresh water and in salt water. Where is the buoy )r*)5477zs aeccxiczdz+lrv ant force greater on the boat?

  Salt water is more dense than fresh water. A ship floats in both frvo3cah/i l /5iesh water and salt water. Compared to the froih3 /il/ca5vesh 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 xfwpz8-yd (. yky7n q9is the buoyant force on-w (nqxy kyz9y7pdf. 8 the ball greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, ri8.be ba2q0 slbght next to a 10-kg piece of lead. Whicq0b. ablbs8e2h has the greater buoyant force on it?

  A piece of iron rests on top of a piece of wood floating in a bathtubi+s 55+g6 4nydvx4 bt 8dqncvo. If the iron is removed from the wood, what happens to the water levelt645 divx 5vdo4 nc+sn8bqg+y in the tub?

  A piece of wood is floating in a bathtub. A second piece of wood sits on6ftrxz hf(gt2 tq0*3zqn.h/qgh :.wt top of the first piece, and does not touch the water. If the top piece is taken off and place2qqg*qw:6tth n (rfzh /fzg..t3t0xhd in the water, what happens to the water level in the tub?

  Water flows through a pipe. The diameter of the pipe at point B is largkczl)uc f;: +ihav6h9er than at point A. Whei9hklfazc;v) u+hc :6re is the speed of the water greater?

  An ideal fluid flows at 12 m/w,lg a *9h.:hcvg )d++fwtoycs in a horizontal pipe. If the pipe widens to twice its original radius, what is the flow wg+l.h)t9: y* g,fca +hd wvocspeed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pip1: ozurgce n19xt7te )e. If the pipe narrows to half its ot ezn ox1):71curteg9 riginal radius, what is the flow speed in the narrower section?

State Bernoulli's pr*fbc pgrf-- otswnz 69+1r1 1mr) ulqfinciple.

  Which one of the following is associatgfp)fgcc(ex3+vk bw1 . y74 q(1kuazj ed with the law of conservation of energy in fl q b jvfcp+3)( 1kgwfy1cge4kuxaz(.7uids?

  As the speed of a moving fluid xcn,.xe4f zy9increases, the pressure in the fluid

  Water flows through a pipe. The diameter o0z7w tocyz0 )vf the pipe at point B is larger than at point A. 0 7zwcyzo0vt)Where is the water pressure greatest?

  When you blow some air above a paper strww)-b. *tt vevg3k4ro ip, the paper rises. This is because

  A sky diver falls through the air at terminal velocitd q59h7dvwi;ho/v ,4 p qps2yiy. The force of air resistance oqdvyo2qhi/ pi9w7p45;d,h s vn him is

  Two Styrofoam balls, of radii R and 2R, are released simultaneouce wlxhk*q7 ::sly from a tall tower. Which will reach the ground first?c l w*h:qk:x7e

  When a small spherical rock of radius r falls thro3wtvamc9 9;o1nuk f/bugh water, it experiences a drag f;v cw 1a9fkonu3b/tm9orce $F=arv$, 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 greatestv7p ;g,vuclizf72 0wbme2 md ( effect on the flow of fluid through a narrow pipe? That is, if you made a 107v mdz0 icwe7 bfuv2g(, ;mp2l% change in each of the quantities below, which would cause the greatest change in the flow rate?

  Two horizontal pipes are the same lengthtox *vy7ii9n ), but pipe B has twice the diameter of pipe A. Water undergoes viscous flow in both pipes, subject to the same pr t9in)xo*i vy7essure 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 as40 cm3bngjww ykd2 +c9 long as pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the lengths of the pipes. wcd +2c0gwny4 j39bkm If the flow rate in pipe B is Q, what is the flow rate in pipe A?

  When soup gets cold, 1/fr o 7p.oy0ems k*dzit often tastes greasy. This "greasy" taste seems to be associated with oil spreading out all over the surface of the soup, instead of staying in little globules. To us "physikers", this is rekf o.0r sm1epod*y/z7adily explained in terms of

  When a tube of diameter d is placed in water, the water rises to a heighvv(,4 fg6dxtpt h. If the diameter were half as great, ho46v, p dt(gxfvw high would the water rise?

  Certain insects, suchyod3,lai ;h(b as the water bug, are 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 as big as bug A, in all dimensions. That is, bug B is twice as long, twice as wide, etc. What is the weiid; bay,o3 l(hght of bug B?

  Certain insects, such as the water bug, are suffioocv* y-.nw5r ciently 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. 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 widew.o roc5n-v *y, 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 mavcqsiz/+rew 8c x k;(1ss of 30.0 g. Whatsq+wz;kcri (c xv8/ 1e is its density?

  A liquid has a specific gravity of 0.357. Wha6*d f po)yph1fy 1eum)t is its density?

  A brick weighs 50.0 N, f 94m4oparay559 -ooq j5qooxand measures 30.0 cm x 10.0 cm x 4.00 cm. What is the maximum paar5 qo5o 4o94mxyopq5o-f9jressure it can exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each snoh7bftz8c,4 mzdc2h p vvl 5nywe/)7.swshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarineow4c c4eof)z 4 withstand at a depth of 120.0 m in the oceaefz4o o44 c)wcn?

  A circular window of 30 cm diameter9zddaj.azefpum( sg.c4nt r*96 0 4lm in a submarine can withstand a maximum forcem ej m06s9cuz(gr. nzaldadp*449f .t 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 pr,lg)u*z2kdsz e + il6vessure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below the surface oft0ro.ll,, 1 1y7y;bvxknvr s e sea? (The density oky nx0b,,rl7.vr es1 vtyol1;f 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 sea?+oo dh1th 4h idcy)0y1 (The densi)1+h cyhi4dy0o1othd ty of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small prz:;nz0 vq; tx;ei8vav+c )*tis2 toxiston of a hydraulic machine. The small piston ha:ox8v*z+ ;r) szvi tqi;;xtnetcv0 2as 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 (tyw :u;vy77/saldq 9h narm3small 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;q7ls3n tryh y9:7dv w(ua /ma small 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. Whau1qd5 kj+o p 9xd5qjs1t force needs to be applied to a 5.0 cm diameter piston to accomplish this9d1+ updoqk155jqxsj?

  The small piston of a hydraulic lift has ak(2.bab nz+vx+a k9g,d aoz6 ,fb(bgaj y5o;g diameter of 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a load of 15,000b+dz9kvba.(f b( 5gkagg2 ,;jan ,+y 6abzox o 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 Nqtkp00 b1e/ ulqdl,/ y b4ymj7 in air and 30 N in water. What is the buoyant force of pqll/u kd40 b10ybq,e/j 7 mytthe water?

  An object has a volume e5 i1:hrdd5g s o-on;dof $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is supported by a s7e) bm+bs c( o:ubyof2tring while submerged in water. What is the tension in the string? cbbm7u+o: 2)e(sob f y (The specific gravity of iron is 7.86.)

  If the density of gold iex*uf (wxgs1oxaf;,7s $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarine y+us gr-lja/xt 3;-3s)fy6oo ya 7hdt(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 aire9r.slsj:); pecs mc) and 6.86 N when it is immersed in water. What sl9:;sc r) .emce)sj pis the specific gravity of the object?

  A container of water is placed on a scale, andfdtkl 08z.7 ttvpbl5 . the scale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and lowered int0 dlzf. v8tptlt5b .7ko 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 .k k 0djqlw1it99pwys/3ci z ,d;iwp -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 len9loyh-jd1s w927 b v1scxnn,ngth 12 cm and diameter 2.0 cm will just barely float in water. c2no xwdyj7 nv9 -slbs19n1h ,What is its mass?

  A rectangular box of negli pd) itl 2;plfa+*fy7mgible mass measures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilogra2*yamppf l)i7l;d +tfms 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 ha7qs e(v;rx 7bx;2unm5sv jn-ilf its volume beneath the surface of the water. The weight of the displaced water is 2000 N. What is tns2xi( -m;xbqv;s5nu7 e7vr jhe weight of the object?

  A solid object floats in w+mgd m-d (p3su0md0 0w k3cgus cv9t/tater with three-fourths of its volume beneath the surface. What is the objec3+m ctsuum0m0sg/ kdtw(gd 0cp-v39 dt's density?

  A 200-N object floats with three-fourths gtkv,:p) a-j dof its volume beneath the surface of the water. What is the buoyant forcap-k t,)g vj:de on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. ruio(o2 :)e3* 7r-oiugyvvh m What is the minimum area of the floe that will just support the bear in saltwater of)oe- v3y2voohug m:i u (7rr*i 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 flow rate3 :mr gf :xan4fk:ykb*.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. There is a 2.0 cmo: ye cq 4g /,bskr8tkezx/4w+ diamet /b4w/xko+s8r t:ceky4egzq , er restriction in the line. What is the velocity in this restriction?

  Water flows at 12 m/s in a horizontal qkhfjfr e+(+(iqy w)4pipe 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 doeszf*e fv1vg3redu7d ,lg3, j. k it take for a pump to supply a drinking fountain with 300 r3g dzd eu vlf,, k17gef.3*vjkPa, if the fountain is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of a water) hovq9dc ls,(cu*jak .l1(e: ndjtb) storage tank that holds water at a depth of 15 m. At what rate will water flow out of the de)h.kj(cl)dc njq :t1l*sa,o9 u(vbhole?

  Water flows through la *qamnwc1; -0 4oei 8e-wxbva horizontal 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 a viscosity of 0.20 Pa-s. How long would it take t. w07m 9llgypyhdzm 83o pour 4.0 L of oil through a funnel with a neck 15 cm long and 2.0 cm in diameter? 7 mhpy9ll 3mgyw 08.dzAssume 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 4ooayj,g3ys kucw*4j utm8l2 6 5 fd0dof an artery decreased the radius63c4fukwjo85d adso0lt2 u,jm* g 4y y 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-:d;xzdoazx /d d*cu/ twice the diameter of tube B. If water rises 24 cm in tube A, how high will it;xd //cdd:zuz-xo *da rise in tube B?

  The surface tension of water is 0.0ly n zli1dyk((nudq( -o0.s r)73 N/m. How high will water rise in a capillary tube of dq)d0dnl(s( u(.l1kznyi -y roiameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capillary tubs0 f i13 v;alr3nt ndbj,i.cc.e with a diametes.3 3njabv nci.;i1l tr0d,cfr of
0.50 mm?

  A narrow tube is plaz7ar z90qou3h d 2r4b(maxdo)ced vertically 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 m abdxz)2a73 o(09udzrhrq4o by the addition of some soap. What happens to the height of the liquid column in the tube?

  Consider a rectangular frame o t4z 2fl,(ope9 o.xu+e pb)vlef length 0.120 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 force does the soap film exert on the 0.600 m sx)(42eluovlet+beo fz9p,p . ide?

  An adjustable rectangular frame has length 12 cm and width 5 cm, and is builtm::rt dxz, zc6 in such a way tcx:d , 6zzm:trhat 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 adjustable long side so that the frame is 12 cm square?