The three common phases of matter are44 eirg 9*ps)0+l/ruvwa e muk

  Density is

  Substance A has a density o4iyo1 8 xo1 hwd,zhab,f $3.0 \; g/cm^{3}$ 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 pressure6.k7it yk .6 db+jsequt*v1u n?

  Consider three drinking glasses. All three have the s9 4vn/qkyh0vrwzl ( m4*p(npluc+v s /ame area base, and all three are filled to the y9h+ll4/*0k uvmq n r(znsvpw (c/pv4same 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/0v. irgtyrbtq( bc9x9f7qz* c7 jpv/ the pressures inside and outside a tire called?

  When atmospheric pressure cesm* i9/ez8xi /6 w 0xm.ixqtz6fw7jdhanges, what happens to the absolute pressure at the bottom of a p.x s6/qjit/*em86zizw9edx wxi 07 mfool?

  You are originally 1.0 m beneath the surface)ds31te;o6ymj jz t:l3fm)rt of a pool. If you dive to 2.0 m beneath t3z: lfm6te3;d)tr 1j jo y)stmhe surface, what happens to the absolute pressure on you?

State Pascal's princi,r8m/ ygppkzm3t8hp9 6hd 8upple.

State Archimedes' princizw3i jm);87 *pguhlkrple.

  $50 \; cm^{3}$ 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, klq2yt+ 1k2iz what happens t2+k1 ylizt qk2o the buoyant force on it?

  Salt water has greater density than lsov3807u9xk pmv gj8fresh water. A boat floats in both fresh water and in salt water. Where is the buoyant force 78mguj9l0 vvo3xk ps 8greater on the boat?

  Salt water is more dense than fresh water. A ship floats i *kt8)aa,h 1jq(zh vbun both fresh water and salt water. Compared to the fresh water, the volume of waa,h*(zb)ka u 1v q8tjhter displaced in the salt water is

  A steel ball sinks in water but floats in a pool of meywwp /0;x-f a ia5l)jrrcury. Where is the buoyant force on the ball i;l5awj0w)afxyr p-/ greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right next to a hadrm ,.mh+f- 8cp1lo10-kg piece of lead. Which has the greater f-ah, omd c.1ml+prh8 buoyant force on it?

  A piece of iron rests on top of a piece of wood floatinsyi9m6 dqsajm9 we, sq5:tq 7).pz sl+g in a bathtub. If the iron ijz,e:pwdls+ 9 i s.smy)7qs6qt9q am5 s removed from the wood, what happens to the water level in the tub?

  A piece of wood is floating in a bathtub. A second pieccenoazi4 wv8 )q+,t 1le of wood sits on top of the first piece, and does not touch the water. If the top piece 8tlna1+e qcwiz ov4), is taken off and placed in the water, what happens to the water level in the tub?

  Water flows through a pipe. The diaq 6oepshdm4+( meter of the pipe at point B is larger than at point Ahse(4 m+6 doqp. Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe widens to tfzxp( 3 z+*-tshavkm z:s*z8, 8mjoh9ub0kyzwice its originamk+ tzhkspvzs8*(3o8h muzz y,j: a0*xzf9b-l radius, what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s i(k(buf*bi3mzjo9 l 503pdvdu n a horizontal pipe. If the pipe narrows to half itz5kdlb*b du( uo(0jim93 3f vps original radius, what is the flow speed in the narrower section?

State Bernoulli's principle4zoyk j;zr .agv1h(w1.

  Which one of the following is associated5; .qtow-;zwv *ox *cqdick2v9s l bk2 with the law of conservation of energy in fluidsbz v;q xw*lstc5qwv k22d. c* 9o-iok;?

  As the speed of a moving fluid increaslini jl6 o(edt4-7qgaw, ;c6ies, the pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at point B is larger tht(gav v3-9qzx an at point A. Where i93q(v-atzvg x s the water pressure greatest?

  When you blow some air above a paper strip, the paper rises. u/uc63ct* d: yyb hq4bThis is because

  A sky diver falls through the air i hlkp/jvqtra; l3.dv o9r.9* at terminal velocity. The force of air resistance on him is; ohp/ t lr9.a9i3*dkv.jqlrv

  Two Styrofoam balls, of radii R and 2R, are rj3 d+s;bd1w i4eambb; eleased simultaneously from a tall t4meb;ad3j1;b+i dbwsower. Which will reach the ground first?

  When a small spherical rock of radius r falls through waqegw*)p2b5g8xawa q .ter, it experiences a drag force5ea2q *bg)x apqww. g8 $F=arv$, 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 flui*g bcf5,1lks-f8 vxbpd through a narrow pipe? That is, if you made a 10% change in each of the quantitig-*1f, pcsvl kb8f b5xes below, which would cause the greatest change in the flow rate?

  Two horizontal pipes are the same length, bk.zb tlddu,3h*m8x upmpd k9hr 5+7 /aut pipe B has twice the diameter of pipe A. Water und 3kk,7p.zhd x85tu * dmbudrph/9 am+lergoes 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 pipe B?

  Two horizontal pipes have the same 50k:oq mnovq+diameter, but pipe B is twice as long as pipe A. Water underg+0o:mo kqnqv 5oes 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 rate in pipe A?

  When soup gets cold, it offrv,(9ctn rn +ten tastes greasy. This "greasy" taste seems to be associated with oil spreading out all over the surfacecv rnrnt( 9,f+ 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 d y lq0dey(oy- lo2aif0vg.-4 icl:xw+lj21n to a height h. If the diamet 4cal0-ixylye(o+if.n1-o wl2 d:y 0lg dvq2jer were half as great, how high would the water rise?

  Certain insects, such k+ls q7v 9bcuz4 +k3q o/o3rnxas 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 weight ofo3qnqr9b s/ cko7lv4 xk+3z+u bug B?

  Certain insects, such as the water bug, are sufficiently lightwein)/0*2m np/dfh e85bqlciimq ght 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 fnlq)/ 8hd2q/m *i ei50b nmpcof 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 p6zd s0lgf,:g h7umq)3.00 cm x 4.00 cm has a mass of 30.0 g. Wha0 6z,mfgug)s:7qdp hlt is its density?

  A liquid has a specific gravity of 0.tio*m 16qa1 pg357. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm. What is the mamxec .ywzue/cx dj/ knjz;q6 174gsu+,g bl6. ximumzj6cj;em .u 641+bgx7e qwdznx/l/,c .kysgu pressure it can exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each snowshoe has +2i7uxn+nagy3ni d28-a l 6/gbd phn garea $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand at a dep1s pff3 j+oyi t5pe3z0pz -mg0th of 120.0 m in the ocean pjy 5ff0m-ep3301o zsitp+g z?

  A circular window of 30 cm diameter in a submarine ca 1xdyw;z5+gj 1ebq3d nn withstand a maximum force of ;1d1gxz b3qjnd +eyw5$5.20 \times 10^{5} \; N$. 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 ajk7zy;r p h-7cbsolute pressure is 300 kPa?

  What is the gauge pressure at a location 15.0 m below the surface of sea? -4wuyy3tc sq 2 (The density of seawater 2swq u 3tyy4c-is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m x n)ae2( y0r*gbwz jo.below the surface of sea? (The densitya(b.y xe2 on*j rw0z)g of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the smalr3gau75ny:fff8i ,1pb m5 dw jl piston of a hydraulic machine. The small piston has area5,f 37fp m ygndj:1bwf8 uair5 $2.0 \; cm^{2}$. 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 vfjq:+jqb:/ .t3 fd)1pf infaa 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 car weighing 20,000 N ojd:n pff+fajbvq )3t / :q1i.fn the large piston?

  A 13,000 N vehicle is to be lifted by a 25 cmvapd c0bq+3kla gur 4-6-g fi6 diameter hydraulic piston. What force needs to be applied to a 5.0 cm diameter piston to accomplish t6u p3f-qi- rabd g+lcgk6v4 a0his?

  The small piston of a hydraulic lift has a diameter of 8.0 cm, anjx;j(d rl;tgkx-f7,u qcy/ -ed its large piston has a diameter ruel-;cqytjd/fj - (xxkg;,7of 40 cm. The lift raises 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 in air and 30 N in watew bmn*8-cef 3fr. What is the buoyant force of the water8cb mw*fne3f-?

  An object has a volume of ./ 4 js ttc)wkm)vs.k.s;uwdl,xu)sn $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is supf(zt9l;lz 03ke6i mxb9m kck,ported by a string while submerged in water. What is the tension in the string? (The specific gravity of iron is 7b ze9 (xk9clfltkm6 m k,z;0i3.86.)

  If the density of gold i, sne2wt n q.0bu0o99qf8p:ijot3n wps $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submariuz0cif 6t,s3 ine (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 wheyr9 n-s7eu1 -qfem -nrn it is immersed in water.fes7n uen-9- -my1qr r What is the specific gravity of the object?

  A container of water is placed on a scale, and the scale reads 120 g. Now a afm 9.s)iut0x 61lxpn20-g piece of copper (specific gravity .x9f0mni u6xtlpa s)1= 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 of 1ntqz+tchd2b 0 , .m8,tzc kcr-.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 zd.k6)xn i2dvg/ u;fz (kge9w float in waterkfk;ed)6 2dvigun /9xgw z(z. . What is its mass?

  A rectangular box of negligible mass measures 5.0 m lonvyy lmcloxgl;h /3z 0t9m61;a g, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loaded onto the box before i;ho 1my0lzyvxl6 ;m/gc 3tal9t 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 wate ho/wzz4-8sl w:pqd7 mr. The weight of the displaced water is 2000 N. What is the weight of th:s 4/w8qdhzo-zml7p we object?

  A solid object floats in water with thrscs 14t ky;-q5sox4vw ee-fourths of its volume beneath the surfk qscx-st44; 5vy1o wsace. What is the object's density?

  A 200-N object floats with three-fourths of its volume beneath the surface of thx85r4fd oa4pv e water. What is the buoyant force on the obja4rp8 d4 fox5vect?

  A polar bear of mass 200 kgt qspqxthh 4cs498p/a 22n/ 4an6hyh s stands on an ice floe 100 cm thick. What is the minimum area of the floah h92/qynassh6 t44 nppc42/h xstq8e 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 diameter 3.0 cm at 2.0 m/s. Find t+jvtf36uxo; b5jw *dw,tgr*qhe flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. Thervb 9t4sxky b0 n(v s7-nrt2w8ge is a 2.0 cm diameter restrrbtnxsy47kv2n8t0- s b9v(wg iction in the line. What is the velocity in this restriction?

  Water flows at 12 m/s xzqq+vfgv-6z0 +0th p in a 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 foulm: bq1awd4u/ ntain with 300 kPa, if the fountain is 30.0 m above thml4wbau /d1q: e pump?

  A hole of radius 1.0 mm occurs in tqnds,yh8pmv 8n9i 4h5)l,slav.3h*rw z i 7bvhe bottom of a water storage tank that holds water at a depth of 15 m. At what rate wil,arvvl7),md8 8 *nwl.h5is94n v3yzphqib hs l water flow out of the hole?

  Water flows through a horizontal pip3 hcamz 5q-g 3v4nyc7te 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 oflt8eo7(ub gp 0midj02 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? Assumel7big j28ot edu0(p0 m 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-upaa+i;qownz ,ui u1va )va+t ,/ of fatty tissue on the wall of an artery decreased the radius by 10%. tauiwo+,qnu)+;, zaavi/ 1a vBy 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 twicen/m ,osv40hc:xh j:jz the diameter of tube B. If water rises 24 cm in tube z,:v/o n4hsc0jx hj :mA, how high will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will water rise in a capi e90ec p0og2g 8zj8 r:3nkxrxzllaryozk329:ng8rrzgp 80 jxxcee0 tube of diameter 1.2 mm?

  232

  To what height would water wz2p jueya1(a b8--etna e71cat 0 degree Celsius rise in a glass capillary tube with a 7-8ue np2abt1e-(a1wjz e cyadiameter of
0.50 mm?

  A narrow tube is placemki3kd 9fd9-i d 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 by the addition of some soap. What happe miid9 d9f3kk-ns to the height of the liquid column in the tube?

  Consider a rectangular frame of length 0.120 m and width 0.6lr :sa.l+0ay*zo wel(5 lr f/y00 m with a soap film formed within its confined area. If the surface tension of soapy water is 0.0260 N/m, how muchl+of *wrlaye0z/ (la5.yl s:r force does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has length 12 cm and wup,/:vp .(if 8wiw xx69mhpjv(w fa+x idth 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/fj,:xpv 6a+8(p wi ux hw(x9m.wvipf/m. How much work is required to move the adjustable long side so that the frame is 12 cm square?