The three common phases of matter are+ da6v9fg jm4u

  Density is

  Substance A has a deir12lxxwf p9s4 ;9s7 o *fppfrd5dv1knsity 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 no 0i2od;dcm*el0.9fnpzb2 vf zt a unit of pressure?

  Consider three drinking glasses. All three have the scjbi578 q.kjiame 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 lec.i57 bk jjq8iss water than A. Which glass has the greatest liquid pressure at the bottom?

  What is the difference between the pressures inside and outside a tire calledazj+ mh4+ /irx?

  When atmospheric pressure changes, what happens tm l j:f+3jz+* xetoo8ro the absolute pressure at the bottom of +ez3orf+mo:t j x l*j8a pool?

  You are originally 1.0 m beneath the surface 9f4qhj5sd+ g:pbk 7-uj pqmp. of a pool. If you dive to 2.0 m beneq+ h dmpgp:-fb j74us pjkq9.5ath the surface, what happens to the absolute pressure on you?

State Pascal's principle.e6k/n5tq ;48 j pfikge

State Archimedes' prieag( lg db/ax4, 3p6vwnciple.

  $50 \; cm^{3}$ 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 constanttvnj4ru2hble.t6 u-9k xj( 6wt 3qep8 density, what happens to the buoyant force xt3(e-6l9vqu n6uj2.jphr wk4te8b ton it?

  Salt water has greater d mjb73dhx1ol/h (g li-ensity than fresh water. A boat floats in both fresh water and in salt water. Where is the buoyant force grej3gibl x1o (lhd/hm -7ater on the boat?

  Salt water is more dense than fresglfn,ook3qmze5bj * f 4 37d/zh water. A ship floats in both fresh water and salt water. Compared to the fre,odk/ff 5m43zlqj*og be3 zn7sh water, the volume of water displaced in the salt water is

  A steel ball sinks in water but y9j8f rx5 0ogsfloats in a pool of mercury. Where is the buoyant force on the ball grea9syo5 0gjf8xr ter?

  A 10-kg piece of aluminum sits at the bottom of a lg;j m3*v2k ip v h;k,upt2t/ebake, right next to a 10-kg pieceb2 *h;,pikj etv2gk /;up tv3m of lead. 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 tq wew,tro5 j/th4u*-s0o9*mdkd9evo he iron is removed from the wood, what happens to the water level in tsh o5 o0r v*qe,*d-o /4k 9wed9tjumwthe tub?

  A piece of wood is fkqgyd8d7xz8l pwiw3l :7-2m sloating in a bathtub. A second piece of 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 watersm8y 7z7qld-:wk dxl8wpgi3 2 level in the tub?

  Water flows through a pipe. The diameter of the pipe at p a)jdj,rfy iv.6qt0q;oint B is larger than at point A. .q)6;ia dyvjr0qtfj, Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pip +ssvxy4io+c8e widens to twice its original radi svy4+si 8+oxcus, what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a hor rhig ypf+*(v+1h;wljizontal pipe. If the pipe narrows to half its original radius, what is the flow speed in the narrower sectionrlfh ;yh+p(1 +*wv ijg?

State Bernoulli's princip :qv/tk0:p13o qiobi ble.

  Which one of the following is associated with the law of conservation of: zx6ot umml*nfw0 k3- energy lux6k 3 0-o:*mtmwfnz in fluids?

  As the speed of a moving fluid increases, the press * qjhik6:b;7ac;mpchure in the fluid

  Water flows through a pxjh yh)pe3; :hipe. The diameter of the pipe at point B is larger than at point A. Where j:) hyxh3e p;his the water pressure greatest?

  When you blow some air above a paper strip, the pap 461 qsq-uscl1 n4x kk6vnqkv4er rises. This is because

  A sky diver falls through the air at terminal velocity. The /a s kg(zn 05oo/op:fh2thsl ,force of air resistance onf/oh(ngzspso t,/ oh5k20a l: him is

  Two Styrofoam balls, of radii R and 2R, are released simultaneously from a t26.vi r5 k5 mp*y,ymvi mlcb4call tower. Whichipmirc24vky 5b.ym6* , vl c5m will reach the ground first?

  When a small spherical rock of radius r falls through wax3crh mcj(p 0.2vooc5 o.-qxo ter, it experiences a drag for3v xx0 -5 .(m2ccojph.o oqrcoce $F=arv$, 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 narrow pipe? T31 lhe-bh/; sh9bpr;cbihv7 d hat is, if you madb3 1dc;vhl7heihr-/bh;p9 bse 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 f+.h.i+clbyf pipe B has twice the diameter of pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure iy.lf fh+. c+bdifference 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 twiijncrktq33 *-3 uds 0jce as long as pipe A. Water undergoes viscous flow in b ru3j0qjsk3ndit*c- 3oth 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 rate in pipe A?

  When soup gets cold, it often tastes greasy. This "gre o)b/fa5/i6wtftjb.j7i2 y hrasy" taste seems to be associated with oil spreading out75 ybtir2i6/hf jjfba /)wot. 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 heigh0tj,q0w-hefbpm *b ;vt h. If the diameteqjf *-b,;hb0 v0tmpw er were half as great, how high would the water rise?

  Certain insects, such as the water bug, are sufficiently lightw:7 bnb8g ubmlbc0k3p2 x6wnx 68p3arweight that they can run on top of water without breaking the surface tension. Water bug A has weiwcpwxbb28n8x6 l3a3g 70kb: rb upnm6 ght 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 litxf4e4 je2 ew)ghtweight 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 me e24et4)jx fwaximum 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 kd7:9jfwis(x0aow . g of 30.0 g. Whatg7if9 xk(.ow jdas:w0 is its density?

  A liquid has a specific gravi.f58xqywk i-t/(.e sqrp,0tag 4tuoa ty of 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30.y u.pqu+ eij 3gm(z *1za(dpl30 cm x 10.0 cm x 4.00 cm. What is the maximum pressure it c qpd (ymuei3l*u.zpz+j ag1 (3an exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes.-jm (mvw;:drf mu e/.p Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine witui jd0l2 h0wz8exs)r/ hstand at a depth of 120.0 m in the ocean hwujex8li0r2 sz/) d0?

  A circular window of 30 cm diameter in a submarine can withstand a maximum force l ak5v 8z;kb9b9vu*ie of akuk zbl9*9e 5vbvi8;$5.20 \times 10^{5} \; N$. 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 abso8)ev /h0 v - vyj(wrykp.kg(yxlute pressure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below wejn6* eze;wwku4//ez 0x yt9the surface of sea? (The density of seaw ek*/z w90tewny/e;zw xu 64jeater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below the surfaca-fs3gxtxc :;e of sea? (The density of seawa ;txgacx:3s -fter is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on ty,bx9rqm4co7u (qv) ghe small piston of a hydraulic machine. The small pisto()xyg,m oq vuq74 bcr9n has 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 piston has a radius of 5.0 cm and thf pl)adh;7khnrk(13 ve large piston has a radius of 15 cm. What force must be applied on the small piston in order to lift a car weighing 20,000 N on th7p31 hfdh avk(n);rlk e large piston?

  A 13,000 N vehicle is ec*.u u.v65u pd9u8iq/t qaku to be lifted by a 25 cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm da6u..5que p*kv cq8tui 9 /uduiameter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter of 8.0 cm, and its large p7nj5ctjf 4ob..wpzpkx3 , j 4wiston has a diameter of 40 cm. The lift raises a load of3j 57c kpjn.4w,.4wzoxtbfjp 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 i:.g87ubt s-l*gt.rv kv jys*ln water. What is the buoyant force of the watvlg:sv j tykugrbl.st-7** 8.er?

  An object has a volume hr2o+x7y/2j fwhb+ a t1 o3sixof $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid ironfuv- ixbu65 -hk)b).j9u5cisiu ;iln is supported by a string while submerged in water. What is the tension in the string? (The specific gravity of iron is 96) i kn - juc)biifl5uub;iv5.ush-x7.86.)

  If the density of goldfv0.lq8dqss . jtmq(+og:a l : is $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submam h827 jnw7aharine (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 isl fj( (q8sbs58yolsz il/0ke 1 in air and 6.86 N when it is immersed in water. What is the specific gravity os8loi 158yklf( l0jqss (bz/ef the object?

  A container of water is placed on a scale, and the scawldb1 qt mdyd )4.)je3le reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a threab)d3y14 wl .)ddtq jmed 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 of 1.0 kg and densitylfbxu7r0t x)- 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 barelpdbn(ib(m / 8ok h930ck8zh rpy float in water. What oc/hp( dhknb pkrz08 3 b89mi(is its mass?

  A rectangular box of negligqi)9b-x tl hzn .e)k+)zvnf/nible mass measures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loaded onto the b)nn+tqezi/z-v hx)f 9bl) kn.ox 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 ey5 o4rx x:p hzf om,t*1:,wt4yhzdp*water. The weight of the displaced water is 2000 N. 4 ,po,t dftrzw* m 5ey1oxh:p:zhy4*xWhat is the weight of the object?

  A solid object floats in water with thre;l6/i 83cpd (lo bywnue-fourths of its volume beneath the surface. n c 8w3;6lu(/d lybopi What is the object's density?

  A 200-N object floats with three-fourths of its volume beq*vtin1c,h27uhp 1 byp*4pgxneath the surface of the water. Wn 7x pgpy*pu 1bt2hiv,cqh14*hat is the buoyant force on the object?

  A polar bear of mass 200 kg stands on 63w 6gbp;lbmc an ice floe 100 cm thick. What is the minimum area of the flobm 36;b6cl pwge that will just support the bear in saltwater of specific gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pipe of diamet b oj k5xfxh 1,kojwtx:zf.0 gkx+:(w;er 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. k7wt had3ms*o0)9 a:zumaq6k There is a 2.0 cm diameter restriction in the line. What ika7wa 3 9*:) 6okhuqdmzsatm 0s the velocity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with a pressure oftkkn 22r7* cui $3.0 \times 10^4 \; N/m^2$. If the pipe widens to twice its original radius, what is the pressure in the wider section?

  How much pressure doesht8 avjh*5d6 f g;ds+8 gm)pdf it take for a pump to supply a drinking fountain with 300 kPa, if the fountain is 30.0 m above thjs5dvgdfh+ h8tfgm*p 6) a;d8 e pump?

  A hole of radius 1.0 mm occurs in the bottom of a water std+p 7i wx9pm;ws-q yd(kf67ttorage tank that holds water at a depth of 15 m. At9(;6 isftt7qd7pm xdyw-+w kp what rate will water flow out of the hole?

  Water flows through a horizontal pipe of cry- )-eyosf t8vn,vb (kzne +u5oss-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-x/m4w v+eeit .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 dr.vt /w4mex e+iag effects due to the upper part of the funnel.

  Suppose that the build-up of fatty tissue oc twnj wa87m3: eyorj6,7ziq 0n the wall of an artery decreased the radius by 10%. By how much would the pressure provided by the heart hav36 ya: n mz7c0qtr,eiw8owjj7 e to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in3m ;7kqxcpxk 3 a pan of water. Tube A has twice the diameter of tube B. If water rises 24 cm in tube A, h3qxmpc7 k; xk3ow high will it rise in tube B?

  The surface tension of water is 0.073 N/m. How hig/j-jqfomw ipoy e75md9 ankn*4)e4 1n h will water rise in a capillary 9majno mdi*jkn-)pf1 4weeq4o 5n /y7tube of diameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capillary tube)lc z gyyuv- r(1a3vcc*v tf05 with a di-cr(*)50zv 3au flyg ytvc1 cvameter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and the water rises in thegkz s) amczis-1x(6p9j.kjy/ 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 t.s(9iks pac/j xjymgzk z6)-1he liquid column in the tube?

  Consider a rectangular r xbcr8ij 6peydt; 7*b(jw6p -frame of 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 sotb djb6 -;rcj8i*erwpy7p x6( ap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and width 5 cm, acko -a-kn dol 3*4pf2and is built in such a way that one of the longer sides can be moved without kn- 43 kcad *o-flao2pbursting 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?