The three common phases ouhe3n2ams z*n s/ts:(e; ;ywxf matter are

  Density is

  Substance A has a densityhd9.t3mf8vi5t8zxn/ wkwoa6pa* q9 e 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 not a unit o 19.3z7ofl0opf))mrxwr gl5rt wpx1 sf pressure?

  Consider three drinkin8g g 1hjm9ng98b.jh* ao -qmgng glasses. All three have the same area base, and all three are filled to the same depth with watn9hoggn jgb.*89 q-ahg1mj8mer. 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 the pressures inside and outside a x2wjxa+;u.2tl9 q nat tire called?

  When atmospheric pressure changes, what happens to the absolute press1 gyw)hc/pooin. *)mhure at the bottom ofh./pon*)iwgh 1)c myo a pool?

  You are originally 1.0 m beneath the surface of a pool. If youo91bd vd)+l es dive to 2.0 m beneath the surface, what happens to the absolute pressure on you?e vsd+lobd)91

State Pascal's princixuyjdt1o vcr5o5 . c53ple.

State Archimedes' pri(:f:ymz k4 pjmnciple.

  $50 \; cm^{3}$ 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 consjfwl+ u5h8*9mrlsteys *k q;:tant density, what happens to the buoyant force on *e yf;w kt hl:58q*r sms+jlu9it?

  Salt water has greater density than fresh water. A boat floats in boxn-h/16qzg d +5b zmkith fresh water and in salt water. 1i dkz 6zmx-/5nhq+b gWhere is the buoyant force greater on the boat?

  Salt water is more dsd d *8 :xh(thavmw5u1jup)/n ense than fresh water. A ship floats in both fresh water and salt water. Compared to the fresh water, the volume (s8h 5n: dvx* uuht1)j pdwam/of water displaced in the salt water is

  A steel ball sinks in water but floats in a pool of mercuoy6n :h :x gaddx7j: qe6ck9i;ry. Where is the buoyant force on the k9edn::o:x;aig xc 7j6h 6yq dball greater?

  A 10-kg piece of aluminum sits at the bottom of a0a;v; 4haw itu lake, right next to a 10-kg piece of lead. Which has the greater buoyant forwa ;a;hui04 vtce on it?

  A piece of iron rests on top of a piece of wood f6hf (g,fe/upmhaa b.5loating in a bathtub. If the iron is remf(a /mhbup,5 a. fh6geoved from the wood, what happens to the water level in the tub?

  A piece of wood is floating in a bathtub. u9qun;c,)sbbr4ef5mt i. wu ;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, wuwf; ci4,uq)s .;rm 9nbeb5tuhat happens to the water level in the tub?

  Water flows through a pipe. The diameter of the pipe at point B is large iba,h+woju. 0x)v0uab6z8 t lr than at point A. Where is the speed of the wateruha6j ib,la8wbzt+uv.) 0 0 ox greater?

  An ideal fluid flows at 14c0jrfr,n96 cl pl(9qoc: jyz2 m/s in a horizontal pipe. If the pipe widens to twice its original9c:4r nyqc9of,c 0 jrlz6lp (j radius, what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pjfw.m/h uqtx6,f e1s, ipe narrows to half its original radius, what iutwx/qh e,m jff, .s61s the flow speed in the narrower section?

State Bernoulli's principle.qmw+ pg(c3 yz zlr5v(+

  Which one of the following is associated with the law of conservatiouvmh opjy u9t52r2 o;8n of energy in fluids?po 9h;j52t 8vo2ymruu

  As the speed of a moving flu -1s3 vz 67jtgeexcme3id increases, the pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at pmo:pmp(0mq- oj7 5wvqoint B is larger than at point A. Where is the waqmqm (mj7w5v-op:po 0ter pressure greatest?

  When you blow some air above a paper strip)bs.omvsqbg95 cg 5-o, the paper rises. This is because

  A sky diver falls through the air at terminal velocity. The wkvcv.t 2yjswd 3-)xvap2 x8(force of air resistance on him wxxwsj2t)3y -8ca .vvkvd(2pis

  Two Styrofoam balls, of radii R and 2R, are released simultaneously from a talldns l6l epm.ap19 -(w2 (vv+igdtn:f/sqwg:m tower. Which will re s9sfved:pd(t(n+:alml inm/-v6 g.1w wqp2gach the ground first?

  When a small spherical rock of radius r falls through wae9o m.:p (cqztter, it experiences a drag f qpe.o9(czmt:orce $F=arv$, 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 flu1eyk8kzo6ztxyr t;7g nt 985 sid through a narrow pipe? That is, if you madeze8 5t7tn8yxg1kz9;6 r ks yot 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 has twice the diameter2+ovvh zr ,9hj of pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the lengtor 9v+z jhv,h2hs of the pipes. If the flow rate in pipe A is Q, what is the flow rate in pipe B?

  Two horizontal pipes have j 8i -dfwi)py(ikx1jp m5hu-6m.jq+k the same diameter, but pipe B is twice as long as pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the lengths o6-+imk-x( jq1)pkj5my ju8fphidw.if 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 grv/ y9,p inwwr- cp4 fut1.e/sceasy. This "greasy" taste seems to be associated w/rs/1wt ep,w cvci-yunf .4 9pith oil spreading 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 diameter d is placed in water, the;0/nnbrnjp 7 r water rises to a height h. If the diameter were half as great, how high would the water r j0/rnrpbn;n 7ise?

  Certain insects, such as the water bug, are sufficiently lightwwa l 65dxipdlm *g37y)eight 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 )mg7 llxadd3ipw*6 y5bug 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 sulwk+yj0*icnwnn: hh, mj y+,/fficiently 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 upwa+:jn,+0 i/nyh,*nyckjw lh mwrd 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 5ntmd;s/w nr r2+ .iln3.00 cm x 4.00 cm has a mass of 30.0 g. What is its w n;nintr+ 5 sm.r2ld/density?

  A liquid has a specific gravity of 0.357. What is its den9pdp xnzq6 bl(s0 5e7zsity?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm. Wm wek0po)j -p;hat is the maximum pressure -kp o jm);w0epit can exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. E8exk+ enj 5om-ach snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolutem9z0 iq2d3azh ) must a submarine withstand at a depth of 120.0 m in thm 3zqad02i9 hze ocean?

  A circular window of 30 cm diameter in a subm1/l po3h inb+k vn*8naf(t;xy7fqc ng3w2gr 5 arine can withstand a maximum force an xb38*nw qvo5 ( c/tkgfh3nnfg1 +i7;pyr2lof $5.20 \times 10^{5} \; N$. What is the maximum depth in a lake to which the submarine can go without damaging the window?

  What is the gauge presfy p;v1vi1u8 xsure if the absolute pressure is 300 kPa?

  What is the gauge pressure at a locrw8b2pg,sji(is z )9nation 15.0 m below the surface of sea? (The deni(i )zw r2ps ,gb89njssity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a6c7-h;dje k*xw8ji x: s /z3ivrr lj(v location 15.0 m below the surface of sea? (The den/j -7r6* ;li h icwzs3dvex8 v:jxkr(jsity of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the smar5ifr(1fx 0 1qf9z obbll piston of a hydraulic machine. The small piston has area 0f 5ozbq9x1iffr(1rb$2.0 \; cm^{2}$. If the large piston has area $40 \; cm^{2}$, how much weight can the large piston support?

  In a hydraulic garage lift, the smaltpu;1*hgytlgjn0 k7v 9v2 ln7l piston has a radius of 5.0 cm and the large piston has a radius of 15 cm. p9 kg7lg1j v7nhn;*l2tt vu0y 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 uxhwxq 1y4;a)lbuki 9qtv8/s l+w0(c lifted by a 25 cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm dis(bul+/lt 84wv q1aku0yh9)wx xiqc ; ameter piston to accomplish this?

  The small piston of a hydraulic lifydu1glvm4gg - 4 rt,k9t has a diameter of 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a lo kgt-4 ,yuvl4r dg1mg9ad 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 ay dxt z:8lai*)nd 30 N in water. What is the buoyant force of the waitdazl8y)* :xter?

  An object has a volu2pk7pv 3uyry8r0 hg gd7b oy,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 supported by a string while submergw x v,,p.pk5cdgx*a t-ed in water. What is the tension in the string? (The specific graviv . kgw-dxtc*5 pa,xp,ty of iron is 7.86.)

  If the density of gohf*,r1:cp7)g w 09ag7t dtolvqbz pk+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 (density 6yh6h,i,dy0 cxnuv6 w= $7.8 \times 10^3 \; kg/m^{3}$) 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 andodup. glmib kp/,7oc ;,7hyvn9u z*h/ 6.86 N when it is immersed in water. What is lg.kip;z o m//ch vn9p *7ouuyhb, 7,dthe specific gravity of the object?

  A container of water is placed on a scale, and the sbxw3b yj x8a8*cale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and lowered ix3yx *8bba8w jnto the water, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum with a mab aedmtfu ,)-8ss of 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 crnj/l d0 ;*a a3yq7txgm will just barely float in water3/lt0* jgdaqr;7xn a y. What is its mass?

  A rectangular box of nme axo ,7h(a:1,obrpyegligible mass measures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loaded onx:em1o,, a r7yb(pha oto 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 halfpd lm6 3u+;rft its volume beneath the surface of the water. The weight of the displaced water is 2000 N. What is the weight of the object?3t l;fmd6 +urp

  A solid object floats in water with three-fourths of its volume beneath the surf3y roiunqe0(y t6ad;/9v( zpqacz doya 0un/6y;(ve tr9p q3(qie. What is the object's density?

  A 200-N object floats with three-fourths of its volume befkg*b+/gg mi. neath the surface of the water. What is the buoyant force on t+im k .bgg/gf*he object?

  A polar bear of mass 200 kg standg8*avrq9; ptu r20,r0r qmd;iijn u 1rs on an ice floe 100 cm thick. What is the minimum area of the floe that will just support the bear in saltwater of specific gravity 1.03? The specific gravity *9p 0unq;u 1rt;j qi,0ad28rr r gmivrof ice is 0.98.

  Liquid flows through a pipe of diamete)s)u .+jr sny, cfzvq4gj ;;fjr 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 h..qwpyj7f4 xk6fhwc8y e /:u 6zkw. bdl.qb8 m/s. There is a 2.0 cm diameter restriction in the line. What is the velocity in this restriction?.qd p.bw wul4kx7 kh:jzyq6/c wbf8 h.ey6f.8

  Water flows at 12 m/s in a horizontall0kv d:ddij;+ 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 tak; xfag),qxrc c: ic2e/vvuq:. lgh.z 9e for a pump to supply a drinking fountain with 300 kPa, if the fountain is 30.0 m above the pump?vxxce; :a.,qz9c)r.u h gl/f gqv ic2:

  A hole of radius 1.0 mm occursbfb ylf7,2ik(5 e 7ihg in the bottom of a water storage tank that holds water at a depth of 15 m. At what ratee filf57gy7,bk2 ihb( will water flow out of the hole?

  Water flows through a horizontal pipe of cross-sectional /fvz;rbub g10 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 0.2xq f2el2u w tsf9(8mq)9 azt*q0 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? tw2z8aufq 9q(tf2l )9qx *mesAssume 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 of fatty tissue on the wall o(wvs (4jh9 rxymwqb0 6z9q4 gof an artery decreased the radius by 10%. By how much would the pressure proqjh4y4o(x 6wr(0 qzb99wg vsmvided 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 twice +aek +v ,;ojzjthe diameter of tu jjkz, o++;veabe 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.b3l83-d qhbj th. k9ic How high will water rise in a capillary tube of j bd8.kbtl h-39c3iqh diameter 1.2 mm?

  232

  To what height would water at 0 degree Cel1l )/id9z9ymczk o7ojsius rise in a glass capillary tube with a dioz/ykmj9ol d7c9)i z1ameter of
0.50 mm?

  A narrow tube is placed vertically in a pan of water, and 2uus) ei5lve:;3 gee bthe water rises in the tube to 4.0 cm abo3 us5;l:e) eegv2 biueve 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 the liquid column in the tube?

  Consider a rectangular frame of lengt7c * -q 7nwygz7br6wabh 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 soap film exert on the 0.600 m n7 ab wq7wc y6zrb-g7*side?

  An adjustable rectangular frame has ix:s i 5m3dcr6length 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 muc3 scidmxi 65r:h work is required to move the adjustable long side so that the frame is 12 cm square?