The three common phases ofgpjgm3 )9 r)rkk; x,h io5bf1s matter are

  Density is

  Substance A has a density 1t:q 55x;2m vzha3x6tvpya s kof $3.0 \; g/cm^{3}$ 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 iscb)9.( a6tn.fela lnl not a unit of pressure?

  Consider three drinking glasses. Alsqnm wgx hg 5:c:b+e1(k- 9wfgl three have 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 top t bgq59x c+wm hegs (wg:-f1:knhan 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 in63 0lhv l3wubkk bv(x5side and outside a tire called?

  When atmospheric pressure changes, what happens tw 41fbvqp,6 rb -r/quygsbb6e7zh9x )o the absolute pressure at the bottom q,6v9-x67 z b1gpr/qyeru whfbb)sb4of a pool?

  You are originally 1.0 m beneath the sure rvk0 t3ph74sixp gaia1887 aface of a pool. If you dive to 2.0 m beneath the surface, e8xv1rpk 8tas p a73hi0i4g7awhat happens to the absolute pressure on you?

State Pascal's principle.s 3tub96 gl.rl

State Archimedes' princi,cw(9um j izm3ple.

  $50 \; cm^{3}$ 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 dtuc4bw z2y vtmjk(dog5 gq5*o1 0*hv4ensity, what happens to the buoyant fty k25z tvo jh ubgo4*01q4c*5vm(gdworce on it?

  Salt water has greater density than fresh water. A boat flo k0.trcy)j/v iats in both fresh water and in salt water. Where is the buoyant force greater on tr)kt/cy.0 vjihe boat?

  Salt water is more dense than fresh water. A ship floats in both fresh water an 7hhxbyyg -q+2 )3j..cmxoqnad salt water. Compare qg3hx)am7y- hq n +c.yxo.jb2d to 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. Whelkik -jswpg(7,d g2(gre is the buoyant force on the ball g7(kdlgjpk2 s,wig -g(reater?

  A 10-kg piece of aluminum sits at the bottom of a lake, rilt,g x;yn+ q5gght next to a 10-kg piece of lead. Which has the gr;lng,+q5gy t xeater buoyant force on it?

  A piece of iron rests on top of a piece of wood floating in a bathtub. If the irt:e7qt:ewr no-z3ou;m ) iu)uon is removed frmouu-r: )wtq :i n3o7zt)e;e uom the wood, what happens to the water level in the tub?

  A piece of wood is floatipy)f,uo ,6 pfzng 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 th, 6fup,zoypf)e water, what happens to the water level in the tub?

  Water flows through a pipe. The diameter of the pipe at poiu o ngx:+u7,l wv7gmrd*j 4+wznt B is larger than at point A. Where is the speed of the water greater?xu7zg:vg+ l7*uo jdnw +rm 4,w

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe wi)q ( tlf zocuckpr/7(w .leu)zl9:d1sdens to twice its original radiu9 sez)zo1( )uuq(/.l:cllwpkc 7frtd s, what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizehhha1zck p 0d5 a4k k :50m2n*.ufdveontal pipe. If the pipe narrows to half its original radius, 5kc0azevah 2hkh:1 0e.mu54 ndf*dpkwhat is the flow speed in the narrower section?

State Bernoulli's princ j5zl9zye-i0qe1ieyfn qo8 4o2 z0v2iiple.

  Which one of the following is associated with the law of conservation of energy5m17+cb3 yytotxkmg1 ey8r.o inm3 11r 8bocxyt e.ky5oym+g7t fluids?

  As the speed of a moving fluid increases, the pressure in the flum7)*ksnh0:9q gd ighpid

  Water flows through a uds(, me1rn lt6,zp8p pipe. The diameter of the pipe at point B is larger than at point A. ,(18emzpsdnpr 6u, l tWhere is the water pressure greatest?

  When you blow some air above a pa s/fook9ul2 5uyp;vm,nw 5t-yper strip, the paper rises. This is because

  A sky diver falls through the aiiga;h6m;x*) 2+z px q vg0pfezr at terminal velocity. The force of air resistance on hiv ;6z ;ph*xgize+fgaq20pm )xm is

  Two Styrofoam balls, of radzqq:a 6aajtnv)3alv n5 ;)6 jqii R and 2R, are released simultaneously from a tall tower. Which will reach t v6n63tqa5za a:;q)qnvjj) l ahe ground first?

  When a small spherical rock of rada u59dbp2md+(bs7r 0 pv par:sius r falls through water, it experiences a drag fo5p:+bm drd 0s pua9ab72r(vpsrce $F=arv$, 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 onjfa dgn.z1c jyh3014m the flow of fluid through a narrow pipe? That isd0 gjn1z 3fja1.hm4cy, if you 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 3oss;, f+ smu2sk7xfcg+/.7 qh neibz 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 if+h7 ssk+egoic,f7 b2u3z/ q .;nsxmsn pipe B?

  Two horizontal pipes have the same diameter, but piptisc3 o; pl5wikx, u17+az jgr8h 6uy6e 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 pipsi+ ul3jpguw t;1 c66xo,z7ihy 5kar8e B is Q, what is the flow rate in pipe A?

  When soup gets cold, it often tas d+5f/hs57rej.tlf )myndh/ n9a 9y0x z3azkbtes greasy. This "greasy" taste seems to be associated with oil spr5d5df9e srml/ 9/kxzhyz0) yjhf.a 7n 3+t nabeading out 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 diame:z8)g9trb gpw ter d is placed in water, the water rises to a height h. If:bg z8)grpt w9 the diameter were half as great, how high would the water rise?

  Certain insects, such as the water bug, are sufficiently ligjz8 46eqnp +gyhtweight that they can run on top of water without breakin e48qnp+ jy6gzg 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 weight of bug B?

  Certain insects, such as the water bug, are sufficienqbt0i5lf6*v e tly 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 wide, etc. What is the maximum upward force on the feet lti*vb 6 e0qf5of bug B?

  A plastic block of dimensions 2.00 cm x 3.00 cm x 4.00 cm has62zi/ fozvur8he3us( a mass of 30.0 g. Whath2(6s8/3iozf zrveu u is its density?

  A liquid has a specific gravity of 0.357. 5 ips fmz8xv0; What is its density?

  A brick weighs 50.0 N, and+xdo ,j9hw9 ;+bjk acdbu): de measures 30.0 cm x 10.0 cm x 4.00 cm. What is the maximum pressure itcdbj h+)x9,wej+9akd :u bdo; can exert on a horizontal surface?

  A person weighing 900 N is standing on snowji3 7flst/t-2egj l(26yyqeb shoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withsu 9 x)w1nnrv 71fezr8-xgh/entand at a depth of 120.0 m in the oeufw9r-ne 1x 8vr1zn)g/n7xh cean?

  A circular window of 30 cm diameter in a submapp 9ihztz,34 *demm v6rine can withstand a maximum forcez4t*mz,pvp i e9hmd63 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 pressure is syn6)1.r1k,y gr6 d a;:*trmolfswbz 300 kPa?

  What is the gauge pressurefavo+s ;r3q52q 0cawe at a location 15.0 m below the surface of sea? (The density of seawater iqwe3qc2ar+a vf o0 s;5s $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a locati;n ei:4zvip: l-9spd3t3 a nhbon 15.0 m below the surface of sea? (The dlb:3;izd9v e pn-tap :i43n hsensity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the s 6,lpwc6/j) uyfvet)small piston of a hydraulic machine. The small piston has a6 sufp/) tw6y)je vc,lrea $2.0 \; cm^{2}$. 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 ra, mgm9x-pz)ee) :lpbmdius of 5.0 cm and the large piston has a rzg lb,mmepe-9 x )m:)padius of 15 cm. What force must be applied on the 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 byn erg 0,8gms1d a 25 cm diameter hydraulic piston. What force needs to be applied to a 5.0 cmrm 1endgg8s,0 diameter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter of 8.0 cm, and itmtc8 5pxea ziw(9 1gq;2wj/ qis large piston has a diameter of 40 cm. The lift ra5zqq;wg i9ci(ewx21/at 8m jpises 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 vkk 57qc h04 p ,wkf0xpwzzo*+in air and 30 N in water. What is the buoyant force of thh*wf +qzk ,0w04vp ozk7kcx5 pe water?

  An object has a volumuja 9*l7gis) :0iq hcte of $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is supported by a string while o.+ a-y5ofit e( mal;ssubmerged in water. What is the tension in the string? (The specific gravity osi oa; .-y o5mf+aelt(f iron is 7.86.)

  If the density of gole fstn3 (uv+.od 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 submarinw2i5 u q5lw; ly7jnc6ybjgq*7e (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,67 kgx 07eh2iufqf ef when it is in air and 6.86 N when it is immersed in water. What is the specific gravity of thex,fi kh2 ffue6q77eg0 object?

  A container of water is placed on a sc ,yu1o d7w89ynneogv (ale, and the scale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and lowered into the wa( y9ug7 ,wnvoo edn18yter, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum with a mass of 1.gx)h/b2( gcm/g7+4 ojthehu s0 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 j:hhf.c (yk jh.dk-oyc;2c +rwust barely float in water. What is its .2 j; .hho +rdh(-wk c:ckyyfcmass?

  A rectangular box of negligible 5n+2 .g*ndy:a (s9ceqpehwojjcp7e8 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 bo c (e8yp+e9 ah7nseg:*5p2oqj.ndjc wx 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 beneaq3:nf c(; cufmth the surface of the water. The weight of the displace3fmnu(cq ;:cfd water is 2000 N. What is the weight of the object?

  A solid object floats in water with three-fourthsef+e f 3ig39ny t/ sj9:oxigg; of its volume beneath the surface. What is the objecyo3 /g+ xjff3e gtgsn99;i ei:t's density?

  A 200-N object floats with three-fourthw,d 5g.awe uu1w*3 -h jcrr6ixs of its volume beneath the surface of the wa*rc xu-r,jw5egda.1 uww 6h3iter. What is the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice)a9se5ruu/vu h c :l/v floe 100 cm thick. What is the minimum area of the fl v9cvs 5u/ul:r)heu /aoe that will just support the bear in saltwater of specific gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through;4g1p nbr5c adj+m,g t a pipe of diameter 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 a 2r k.am q6u2l.l.0 cm diameter restriction in th.26 malkl rq.ue line. What is the velocity in this restriction?

  Water flows at 12 m/s in a horizontal p / rqpd9u egzd/*t )xdq9dk9a7ipe 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 fountai3x(8)kiznjom + c9ox wn with 300 kPa, if the fountain is 30.0 m above the po xon ck938xj)w(mi+zump?

  A hole of radius 1.0 mm occurs in the bottom of a 11gv0td of,q(ads9ql.fz 7 gcwater storage tank that holds water at a depth of 15 m. ls(cdgat .10g 9z,oq7f1q f dvAt what rate will water flow out of the hole?

  Water flows through a horizontal pipe of cross-sectio,n0fjg1;lc2 hky ajh2:;ak fd nal 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 viscos oku zg10nt3a,p6zwmr+11 di vity 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 a1gk6+ ,1z0mn r3owdup vi zt1neck, and neglect any drag effects due to the upper part of the funnel.

  Suppose that the build-up of fatty rwzee *;gfj 4 9*gew)etissue on the wall of an artery decreased the radius by 10%. By how much would the pressure provided by f) j**4e er gzgee;ww9the heart have to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of water. Tube A has twice the diam .otg1sn0vk7 p:ff xezh 9n;x1eter of tube B. If water rises 24 cm f. 70 1;th x9zkeo1pnvxnf:sgin tube A, how high will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will water rp6r+d ux62+ xam/fasx ise in a capilla/xx rfms6 auxa2d6p+ +ry tube of diameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glasow f4fom..rn /s capillary tube wito 4.frn /wofm.h a diameter of
0.50 mm?

  A narrow tube is placed vertically i5.l8lj r*3bhm)dv b cdn a pan of water, and the water rises in the tube to 4.0 cm above the level of thl mdv j)bd5lb8 hrc3*.e 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 in the tube?

  Consider a rectangular frame hxk*k t77frb4of length 0.120 m and width 0.600 m with a soap film formed w*7bk47f rkhx tithin 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 lenttgpr))xjy -htj*h5s hl ;x2* gth 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 frame. Soapy water has surface tension 0.026 N/m. How much work is required to move the a2)h xl-;ytt)t j*xh5h*gjrs pdjustable long side so that the frame is 12 cm square?