The three common phases of matter al a2vrp //ww)adlufv:5 r.f( vre

  Density is

  Substance A has a density oan q( ag:sj;tvze .5- lwp2t7lf $3.0 \; g/cm^{3}$ 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 ub-id5kd 6 vrp(ribuxfg-88 q6nit of pressure?

  Consider three drinking glasses. All three havhgix,fz f15 ysk4f q(h dv55q(e 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 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 (z1q g k fhh, sd5ffv5(iq4yx5than A. Which glass has the greatest liquid pressure at the bottom?

  What is the difference between the cgnr0h9:l *5z b+gqtppressures inside and outside a tire called?

  When atmospheric pressure changesgoy sy,(wy s42, what happens to the absolute pressure at the bottom of oy,s(y2syg w4 a pool?

  You are originally 1.0 m beneath the surface of a pool. juoh9bso -j)m fd ,71w If you dive to 2.0 m beneath the surface, what happens touo7fm) j dsjo, h9b-w1 the absolute pressure on you?

State Pascal's princig3e/lvj8zdsr ;,fmqd8t,k t 3ple.

State Archimedes' princi63xxn7 9cfxb daq8hd jm-0)yyple.

  $50 \; cm^{3}$ 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 into4vl)n8e-mwjsqxg9 3 u water of constant density, what happens to theqjv-gn 8xm4leuws)9 3 buoyant force on it?

  Salt water has greater density than fresh water. A boat floats in both frekwa 6v utcz9c; 7((f,h ocqr.nsh water and in salt water. Where is the buoyant force gre; cn7fo6v (ckt,(ch 9a.uzr qwater on the boat?

  Salt water is more dense than fresh water. A ship floats in botz ylz4zt2jo6c d3+.xm 8t4eh5cb 2fv dh fresh water and salt water. Coz6dc5z42+tbc z 32o 8td4fhm x y.lvjempared 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. Where is the buoy3mso8uib3bjq6b epyy+ 1eef58 . rzc2ant force on tbzq53f 6rij8 8b1 .soy uymeceb +23ephe ball greater?

  A 10-kg piece of aluminum sits at the botw1 wvy gl.d4o.tom of a lake, right next to a 10-kg piece of lead. Which has the greater dw.y og.l1wv4buoyant force on it?

  A piece of iron rests on top of a piece of wood floati-zb5c8 l /xnveekd0)6ln8cqing in a bathtub. If the iron is removed from the wood, what happens to the water level in the lde e-l8kn0c)6i /b vxncz8q5tub?

  A piece of wood is floating in a bathtub. A segd aa gd276yv29tj+ tdcond 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 dgv +d 6tg92ta2 djy7ain the water, what happens to the water level in the tub?

  Water flows through a pipe. The diameter of the pipe at point B )/yfh (bce n30nrr2wtis larger than at poi02 r/w nynctbhe ()3frnt A. Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontali25iuxe 0x;fo pipe. If the pipe widens to twice its original radius, what is the flow speed in the wideiuxfx ;i5e0o 2r section?

  An ideal fluid flows at 12 m/s in a horizont/j/ov 0m6*7hcrxi w4- b1o.qs..q uucrftbjial pipe. If the pipe narrows to half its original rauh t6iqqv-wij4f /c7orc .o.sbbj0 xr1u/*. m dius, what is the flow speed in the narrower section?

State Bernoulli's prigx0(y.f6l tz q6gus,hnciple.

  Which one of the following is associated with the law of czgwqpmca(.r q/1m 2 1ionservation of energy in fluidsrgp mw zac(q.q/12i1m ?

  As the speed of a moving fluid increases, the pressure in thedrl a)+ 7mlrr- fluid

  Water flows through a pipe. The diameter of the pipe at point B is lary :gq -)*khrnxger than at point A. Where:-rh )yxqn*kg is the water pressure greatest?

  When you blow some air above a paper strip, the paper rises. Thisscp*corza0es-7g/ .u is because

  A sky diver falls through na gqrsw 8(q1/the air at terminal velocity. The force of air resistance on him aw q( g1nsq8/ris

  Two Styrofoam balls, of radii R and 2R, are g2mtbs m+b8qs l0la8 2lhj f/6released simultaneously from a tall tower. Which wafllm86 8blm2/qt +0g bsh2sjill reach the ground first?

  When a small spherical rock of radius r falls through water, it5d zm3d ax1f/qxu:x02t kd5ru experiences a drag fou30x:a f25k1x d mdx z5rqtdu/rce $F=arv$, 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 ef q-:6l;gfpja sfect on the flow of fluid through a narrow pipe? That is, if you made a 10% change in each of the quantities below, which would cause the greatest change in the flow ratfsgl:q ; jap6-e?

  Two horizontal pipes are the same length, but pipe B has twice the diamety7j 8r;a:q );t0jamnfn, makser of pipe A. Water undergoes viscous flow in both pipes, sub)mkanmjt;naf a 0s87q;:r jy,ject 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 diameter, but pipe B is twamtl8 p3v3cj 5ice 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 pipe B is Q, what is the flow rate i33ja5m v8ctpl n pipe A?

  When soup gets cold, it oq1h(vue n8 ah+ften 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 ih1q eh8vu an+(s readily explained in terms of

  When a tube of diameter d is placed 9 /duo94 w ew(qgbj1rcin water, the water rises to a height h. If the diameter were half as great, how high wowbo d jq1/994 wcueg(ruld the water rise?

  Certain insects, such as the water bug, are sufficiently lightweigbgll. j1o;p69 e+pc5 u.()cghyftjicht 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 il6bof1jetlp(guc.c; .+5yh pgc)9jis twice as long, twice as wide, etc. What is the weight of bug B?

  Certain insects, such as the water bug, are sufficientciyvlh .c871.5nfj vneal h4 (ly lightweight that they can run on top of water without breaking the surface tensiocy4e v(nfv.8 jc nhl a57hl1.in. 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 of bug B?

  A plastic block of dimensions 2.00 cm x 3.00 cm x 4.00 cm has a mass ox y;t;, 6i7thqdx4 yksf 30.0 g. What4 dki; s6;,hy7yxtqtx is its density?

  A liquid has a specific gravitv28hx -eqsy/ cy of 0.357. What is its density?

  A brick weighs 50.0 N, a1o 0 s3g2bttix7oe wu6nd measures 30.0 cm x 10.0 cm x 4.00 cm. What is the maximu6g2o31t ibtux7 owse0 m pressure it can exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each snowshoew0pw5k0yuhj8 :7 v7yzciwd3 v has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolg2e:-+qbd87mqg6aek0 hg q bcwd j0u7ute) must a submarine withstand at a depth of 120.0 m in the ocean?g0d mkwb0q :qau78-c2+eg e6db j7 hqg

  A circular window of 30 cm diameter in a submarine ca0rz- ciop5hh (n withstand a maximum force pc0-5i (zhorh 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 presv*js*r ld,c3 *1*xjg sc hrgtl42f au*sure is 300 kPa?

  What is the gauge pressure at a location 15.0 m beym q 0; h/.m..55xq s;eawvzpkt*a eaxlow the surface of sea? (The dxvaq*zkht.ya /eeqxa5.50 s p ;;mmw.ensity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at tr*:j+re rbl, (.pun qa location 15.0 m below the surface of sea? (The density of seawater br r(+l.j*u:n,erqp tis $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on a(+gi6 kh/txm5ifz1uknm;11 wc8np:r2od cc the small piston of a hydraulic machine. The small piston has g2c;8t/mc+ kk11:nfdzpu6h x(mwni ro ic51aarea $2.0 \; cm^{2}$. 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 rm7u7e m ej1zahh:-r s*adius of 5.0 cm and the large piston has a radius of 15 cm. What fz7ae*he-s mrj7:u hm1 orce 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 by a 25 cm diameter hydraulic piston. W4lf m* 1kzw8jqhat force needs to be applied to a 5 84jmwkzl f*q1.0 cm diameter piston to accomplish this?

  The small piston of a hydraulic lift has a diameter of 8.0 ;. .cy5 9u23jdfgwiwgovh qb ,cm, and its large piston has a diameterh wib5owvgj uyc;. 2 d,f9.3gq 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 30 N in water5m6gnkg i7xk y-9j6yh. What is the buoyant force of the water?mik- ghy9x ng756kyj6

  An object has a volume of0 bo: 15;szopi2hbms+ drdd (vgw 4qw; $4.0 \; m^{3}$ 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 submerqvm ;blc gm6 y.;(vpdj4*taf3ht n.*u ged in water. What ;m vqmu(.;*d tahnyb.3 c*lpvfj4tg6 is the tension in the string? (The specific gravity of iron is 7.86.)

  If the density of gold icd8gfs 5lx8 l roa+1b)s $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steefq ;p :- fgwuy7ch(a3gl submarine (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 when it is immersed in 434 a3i oo0nse:dixspwater. What is the specifanopii03o 3sx 4d :es4ic gravity of the object?

  A container of water is placed onsjimnn;s0, j+9c of 8c a scale, 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 80;cs9o cfmjji+ ns,nthe water, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum with a mass of7s, tfg9 5i8frem5cs dyjoqak;+w ,;hx)y;kj 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 barelw l6jennl hvb/67;k6h y float in water. What is itkj hl/ lhv6bn7 ;e66wns mass?

  A rectangular box of negligible mass measures 5.0 m long, 1.0 m wide, ac5w g4x0d95ez9+ydm:b toyda nd 0.50 m high. How many kilograms of mass can be loaded onto the box before it sinks inx oeb4d5yd t:y59m9c dg0w+az 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 water. The w wwuhkdn(0*rddg 97iggb6 p*pumt7 2 *eight of the displaced water is 2000 N. What is the weight of the objun79 *iwgw2g 0pk*t*p(r gh d7dd 6mubect?

  A solid object floats in water with z ()r6cnsq4k7-b(xo :q4tw;7 f kdl /abxqaduthree-fourths of its volume beneath the surface. What is the object's q4crz(t-xo7u dqb )xl(4w kd fs 6:bkqana/;7density?

  A 200-N object floats with three-fourths of its volume beneath thel3j6.3twx6y s5blv vwtazx/, surface of the water. What is the buoyant forc6xt3jtwlz5alv. ,/ xsvyb 3w6e on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thickwa3 - vec9hwn ms.r )s q70jiz/lu.wl0. What is the minimum area of the floe that will just supportw/ m j9rwa3lnvl)-i0s07q.w .ucz she 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 the flo9dle41sdt m) lw rate.

  Liquid flows through 87 8z ums*nlt8hjobb6a 4.0 cm diameter pipe at 1.0 m/s. There is a 2.0 cm diameter restriction in the line. What izutb n8sm*h blj86 7o8s the velocity in this restriction?

  Water flows at 12 m/s in a horizontal pipe with a pres2wgq0 9b:ikvvgre .()wd9jd fsure 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 dok1zxt8km p/ t2es it take for a pump to supply a drinking fountain with 300 kPa, if the fountain ismk2zkxt1/p 8t 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of a water storageqm 1lhm-s734ji vktx9, 7 jbvk tank that holds water at a depth of 15 sjmmh73t v j79bq,vx 4kk-i1lm. At what rate will water flow out of the hole?

  Water flows through a horizontalfl9:i(w mpb b y,rr92b.x;elf 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 viscositem; l*d 5m+qamy 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 neck, and neglect any drag effects due to the uppamm* e5l q+d;mer part of the funnel.

  Suppose that the build-up of fatty tisr:fo ut899ootm2wg 8 nvwa4 0csue on the wall of an artery decreased the radius by 10%. By how much would the pressure provided by the hear:gfom2uc0nt o9 9r4twwo a8v8t have to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of water. Tube A has twice +fzjex:z5:+8gkkr2 rc 8cqqfthe diameter of tubee:8kzjz:f5g+fqr kx 2 c c+8qr B. If water rises 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 rv,4qnnjf+6,b (+q ee oip 4ljwater rise in a capillary tube of diam+o+q( 6qfen,j np,vlr 4je b4ieter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capillarnu44;+skk8shha rme1 y tube wih ar1s4km+n8hu;k 4esth a diameter of
0.50 mm?

  A narrow tube is placed vertically in a pan of3gj1bkz)4-c fygr g5 f 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. y-ggjzk 5 3fg)r14fcbWhat happens to the height of the liquid column in the tube?

  Consider a rectangular frame of length 0.muvhbkpr; : hjx 070rpd/tm0;120 m and width 0.600 m with a soap film formed within its confined area. If the umrk mt070b rph:pd;0 jhx;/ vsurface 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 length 12 cm and wi1adycgg-4ct 5dx 278jmkc rlvyb9tz) 7fhv3) dth 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. Soahv8zjd-3yx9lk cg m) y7 4c a bgv72)15trdctfpy 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?