The three common phases of matt6ne; b9 z0oiwper are

  Density is

  Substance A has a density of jr w6z0ej4ck( yiq0 ( xjuk1p.$3.0 \; g/cm^{3}$ 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 pressur( pa6pok * 52ykwr-xfxwxql( s:+*vt ae?

  Consider three drinking glasses. All three have the same area base, and )..7,lrqlh n qnt5 zedt/ilz -all three are filled to the same depth with water. Glass A is cylindr ln/e.-nlrzl tt7hiq5 qdz).,ical. 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 differencec:lzx. w,f uf) between the pressures inside and outside a tire called?

  When atmospheric pressure changes, what hapm66 c bs 50kgs/omoqiyk6yei/ l-)a-mpens to the absolute pressure at the boteoy/s- o/s6k5mc 0qm66ly)igbm ia k-tom of a pool?

  You are originally 1.0 m beneath the surface of mz ;:(udgw5bca pool. If you dive to 2.0 m beneath the surface, what h zb(gcwm;:ud5 appens to the absolute pressure on you?

State Pascal's princi2)reti u8(/)pw tq yhgple.

State Archimedes' pre-rupfi/lc1end 85f 8d+tifmh 5 uw4:inciple.

  $50 \; cm^{3}$ 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 a k66bgk2y +n/jd7rvl and deeper into water of constant density, what happens to the buoyant force onl jg v+6dn7/rakky b62 it?

  Salt water has greater density than fresh water. A bq5 xd/ 1j8khwa:sg* igoat floats in both fresh water and in salt water. Where is the buoys *d8h gigxa5k:1 /jwqant force greater on the boat?

  Salt water is more dense than fresh water. A shiphoa(. l 3rb/x1eghb v) floats in both fresh water and salt water. Compared to the fresh water, the volume of water displaced in thl )/a 3b(oh.ger1xvbhe salt water is

  A steel ball sinks in water but floats in a pool of mercury. Where is the b83ct6rey 0l0kh) z hbduoyant k 3tldz0 cy6e8rhh)0bforce on the ball greater?

  A 10-kg piece of aluminu nhg1ccy1 ;wnfza0m;4 m sits at the bottom of a lake, right next to a 10-kg piece of lead. nz0cc1ym1f4an ; h;wg 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 the irwsw27p wb 4 1yp-i 6-lmi4jrayon is removed from the wood, what happens to the water level in the -mii a6wywj7bys4pl4p -1 rw2tub?

  A piece of wood is floating in a bathtub. A second piece of wood sits 05ajpn.efm )-vu q 1iwon 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 water level in the tub?5u)m nf.0vjwq1p a-ei

  Water flows through a pipe. The diameter of the pipe at point B is larger t.2h); g/ily tnw9 yp otar:br(han at pt(;o 2bp9r.ragy:hy n wl/)itoint A. Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizoepvoux7h* +t4 ntal pipe. If the pipe widens to twice its orixpte*7 u +v4hoginal radius, what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. Ipggk 9j/ np-m:f the pipe narrows to half its original radius, what is the flo pgp -jkg/9mn:w speed in the narrower section?

State Bernoulli's principle. oeg0:gzrmurp yrn;3.uic7w) 4,uxs 7

  Which one of the following is associa+nt;pbyx -w7e ted with the law of conservation of energy in fl 7te;npw y-+xbuids?

  As the speed of a moving fluid increu*pd3bp9pc 6is e .8nmases, the pressure in the fluid

  Water flows through a pipe. The dwremf(w: z,v3;ds0lxiameter of the pipe at point B is larger than at ds ewl ;x :mv0fz(w3,rpoint A. Where is the water pressure greatest?

  When you blow some air above a paper strip, the papkns( v-rt y49y le:k,aa5iw. ker rises. This is because

  A sky diver falls through the air at 7ajaiiad+q *0terminal velocity. The force of air resistan* diaia7 0+ajqce on him is

  Two Styrofoam balls, of radii R and 2R, are releaseoige/l6lp:kd+ 0u t2m d simultaneously from a tall tower. Which will reach the ground firsdelot :/pk mu0lig 26+t?

  When a small spherical rock of radius r 6rfx3 2m*itjn falls through water, it experiences a dran *ftr6m2 3ijxg force $F=arv$, 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 greatesh-(p na7ir9sj pht 7:mt effect on the flow of fluid through a narrow pipe? That is, if you made a 10% change in each of the quantities below, wta :(phm-r p j7hs97nihich would cause the greatest change in the flow rate?

  Two horizontal pipes are tbk 4)fz *.ritbhe same length, 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 i4i zt*r bbk)f.n pipe A is Q, what is the flow rate in pipe B?

  Two horizontal pipes have the same diameter, but pipe B icd mjvr;z7q6m45ejg13;umk a+;weeis 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 jd e4z ;;j r56mwc7v+amgemqeu1i3k;the flow rate in pipe B is Q, what is the flow rate in pipe A?

  When soup gets cold, ,4 qjyf)1:dnpqr1xehit 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. T f p1jheq4y,r1)xdn:q o us "physikers", this is readily explained in terms of

  When a tube of diameter d is placed in water, the water 7wvhd-z w wd0xp4wv7/ :iqbd 3m9r ,xwrises to a height h. If the diameter were half as great, how high would -3hmwqwdxr:,vw/dz v 0xp4 wd77iwb9 the water rise?

  Certain insects, such as gk o9lt8lq ,olk(.lq8the water bug, are sufficiently lightweight that they can run on top of water without breaking the surface tenskk ql9glllo. (8oq,8 tion. 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 sufficiently lightweight g ou a*t35 rvc2x0ayd1that they can run on top of water without breaking the surface tension. This is possio*au5vr0 y31dt2 ga xcble 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 dimenqk6/n0w *f x2w0wbt ejsions 2.00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. What is itsxw 0n wqj/b6we2ktf*0 density?

  A liquid has a specificjk3lbz:yx* bnt (:v9 a gravity of 0.357. What is its density?

  A brick weighs 50.0 N, and measures 30 z d0v03os4f4 uxyk.i1p,zjjg .0 cm x 10.0 cm x 4.00 cm. What is the maximum pressure it can exert on a horizontal suo03gdux, j ski 4vjf4p z0yz1.rface?

  A person weighing 900 N is standing o s1jqjqg7*xv- n snowshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand5nxyd106).xwpijt tl at a depth of 120.0 m in the ol.x 0 dywji5ptt)61xncean?

  A circular window of 30 cm diameter in a submarine can withsnx :g/jz 1ei+b/r6q lstand a maximum forcee /l jb+qxzin/: srg61 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 +y f .r4masxvrx;,h;thfnl7(zvan +* 300 kPa?

  What is the gauge pressure at a location 15.0 m below the surfacer.,a87zcu (m 3lu*;whekbmy l of sea? (The density of seawater w3uk*u8mbe7 ,lhal(zm y;c .r is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below the surface of38vd-m6kfr.4, 7wmpvi dmjab sea? (Tmwadfvvm.4 ,3 -j7r pidkm6b8he density of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the small piston of a hydr.k1vpq262dnsac*ba 6n (;ais biqkj3aulic machine. The small pistona(63qv s16 b kn*kan2d ;bqasji.pi c2 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 ta.n1sc wuy1u8.iy8 e7h rlv7 ccx/*crhe large piston has a radius of 15 cm. What force must be applied on the small piston in order to lift a caac8 e.18cly17n yurc*xvci hu7r.sw/r weighing 20,000 N on the large piston?

  A 13,000 N vehicle is to be lifted by a 25 c6wq ho4rh )4(r6xndwn m diameter hydraulic piston. What force needs to be appliedn hhwwrq46o)4xn6d (r to a 5.0 cm diameter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter ork2gu:8ucmoc0 (lfp (f 8.0 cm, and its large piston has a (ou( fmup0crcg8l :k2diameter of 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 -88 mdg2 bosid3(2 ewpbvs.a1rr qf7i30 N in water. What is the buoyant force of ib -gsio.devbp72(asw831qfd r82mrthe water?

  An object has a volukuupvsi7 7pmau-* g)7me 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 suppobnue q35rr)2x rted by a string while submerged in water. What is the tension 3n qb)e 2r5xurin the string? (The specific gravity of iron is 7.86.)

  If the density of goniq zz+dk b0(0:r;nki ld 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 submarine (densitj-wc:3a .jbwgy = $7.8 \times 10^3 \; kg/m^{3}$) 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 Nrnh9 er8ud52p when it is in air and 6.86 N when it is immersed in water. What is the specific gravity oh 8u52nrepd9 rf the object?

  A container of water is placed on a scale, and the ap u6,*;mir8vs+rlyf1t rm9vy-l 1bsscale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and lowered into the water, not touty1p8,-r;v9fi61lmy uamr+l *rbv s sching
the bottom of the container. What will the scale now read?

  A piece of aluminum with a mass o oa5yrbp7v /g(f 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 just bare q1dxkf.jvj:9pl- s 8aly float in water. What is-8s:9lx1 dq k. fapjvj its mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0n.l)kdw b g8+t m wide, and 0.50 m high. How many ki .glk)wbn+8 dtlograms 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 frzy4aahgq.2,:b amy.bhj;4 its volume beneath the surface of the water. The weight of the displaced water is 2000 N. What is the weight of the objb.m:g .yjb; a ahhzayq4r f24,ect?

  A solid object floats in water with three-fourths of its volut-5yj 1yxdg -fme beneath the surface. What is the object's densitj 5dt--1gy fxyy?

  A 200-N object floats with three-fourths of its va j.7sb j4:(y-psikjoolume beneath the surface of the water. What is the buoyant fo7 : kypib4(jsas oj.j-rce on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What is th0; b jcuo9xmjo.q-*ny ph.vt.e minimum area of the floe that will just support the beart u.x-nmcq0..;oyjjp b*o hv9 in saltwater of specific gravity 1.03? The specific gravity of ice is 0.98.

  Liquid flows through a pipe of dr549n dh)dy,v l xfmzb ),v.bjiameter 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameteron ydlylee*9a04 r 7,w pipe at 1.0 m/s. There is a 2.0 cm diameter restriction in the line. What is the velocity in this restrictiody 0l7ye orw,l*e9an4n?

  Water flows at 12 m/s in a horizontal pipe withe4eq7/f fz7k1mlaj 1 h 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 5( ofr :hdfo+fr1l m)4nes1 uwa drinking fountain with 300 kPa, if the fountain is 30.0 m above the pumn1ffuo )4 5l(sf:+hrwd1mroe p?

  A hole of radius 1.0 mm occurs i bk3 bdm/ceg37n the bottom of a water storage tank that holds water at a depth of 15 m. At what r3dcemb7 k3b /gate will water flow out of the hole?

  Water flows through a hobm );18mesflridn2m /rizontal 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 to pour atsq bf7k5 +l04.0 L of oil through a funnqt ab0 l7f+s5kel 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 drag effects due to the upper part of the funnel.

  Suppose that the build-up -ayg,e eay6z(g j3su)q 2ti7tof fatty tissue on the wall of an artery decreased the radius by 10%. By how much wou u6t -2gy(qiz3aye) sejtga ,7ld 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. Tubewr w)9-;+mmqdw bi7dt A has twice the diameter of tube B. If water dmwiwm q 7; 9bt)-r+wdrises 24 cm in tube A, how high will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will wal (kbal79gjej:x6fj8sv) : ot ter rise in a capillary tube of diameter 1.2 mm78v:go slja lex:jt9kbj)6 (f?

  232

  To what height would water at 0 degrer6it5vjpzq()yfjz sj6- .gu+ e Celsius rise in a glass capillary tube with g+ fuyij6)(z rp v zq.jjs6t-5a diameter of
0.50 mm?

  A narrow tube is placed vert7t xp/y*0ax xlically 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 vlaxx7xyp0 */talue by the addition of some soap. What happens to the height of the liquid column in the tube?

  Consider a rectangular frame of length 0.120 m and width 0.600 m with a soap rkj 859da -e0kp7lcrf 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 te7krlcf58k jp -d9ar0he 0.600 m side?

  An adjustable rectangular frame has lyeg +5-w5vl ki7vfkx5ength 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 i 5eywx-lg57v+ i5vkkfn 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?