The three common phases of matter1wh usjdc)6*(aa xc 51xsvqd 2 are

  Density is

  Substance A has a density ez vka.d1jwm3o* t /ed 5:jysw8q5g(m 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 followin0 vjca9n 0zgod-7kz) p8cpfj* g is not a unit of pressure?

  Consider three drinking glasses. All three have the same area base, and allii i/7xos7 ;6xe3nofn 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 than A. Which glass has the greatest liquid pressure at the bottom?in no6i37 s/xfiexo7;

  What is the difference between t z)( w9xhzxb.gu b11tuhe pressures inside and outside a tire called?

  When atmospheric pressure changes, what happk6oegk0puy48 ens to the absolute pressure at the bottom of a ppokg046kyu e8 ool?

  You are originally 1.0 m beneath the sivm,q xz8y)q6oi s ,e;75njq surface of a pool. If you dive to 2.0 m beneath the surface, what hzs)5 y7 qvsie6; ,q8mn, xjiqoappens to the absolute pressure on you?

State Pascal's princo qon srathj7.8qy7 0(iple.

State Archimedes' principln 6lcuf, +gb9le.

  $50 \; cm^{3}$ 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, wh9rh0 b1rqywqz ;/4it- vbz*o, rbn,(si a3qky at happens to the buoyb; 4qn0biio y9 zv1a(rb/s r w*qrhz3-kq, yt,ant force on it?

  Salt water has greater density than freyv; lg; stmi,8+y3bq 9p6waqosh water. A boat floats in both fresh water and in salt water. Where is the buoyant force86+s3;,ypavqgi ylw ;9qtb om greater on the boat?

  Salt water is more dense than fresh water. c:4yj yqs bx7(A ship floats in both fresh water and salt water. Comparedbjc(xqy:y7s 4 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 ofov9phi)*,wo2 x uafa) mercury. Where is the buoyaop 2)9vu*wh,xaif oa)nt force on the ball greater?

  A 10-kg piece of aluminum sits at the bottom of a lake, right next to xpxz 1u+-j:hwam -w 7ya 10-kg piece of lead. Which has the greater buxxp7:zawu1j w m--+y hoyant force on it?

  A piece of iron rests on i0ckvugqs/769 wg ivjb,d8- qtop of a piece of wood floating in a bathtub. If the iron is removed from the wood, what happens to the water level i,6jc/q7b0vg i8qvkw d iug9-sn the tub?

  A piece of wood is floating in a bathtub. A kbzuf3 r my6-wf(c 6)csecond piece of wood sits on top offcuf y( rz)6bm-wc3k6 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?

  Water flows through a pipe. The diameter of the pipe at point B is larger than lrbehn677 gj hpe(-d,at point A. Where is the speed of the water greater?rp gjnb, h7(6ehled-7

  An ideal fluid flows at (tts)wt2/ 1n 4s(qq lzrv4fpt12 m/s in a horizontal pipe. If the pipe widens to twice its original radiu n2/wsvf(t 1q4slz q4()trtpt s, what is the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe nganno:kvitni 9t 2hx pi3 958*arrows to half its o ingn t2:xt*ha9 iikp8 vn539original radius, what is the flow speed in the narrower section?

State Bernoulli's principih)l1+3ddubi le.

  Which one of the following is associated with the law o( qtk)z6szbn i/ ou4dp7vbfvq)x4.j *f conservation of energy in fx/kbt.s(zf n4p i*b6vqdq)4)zj v 7uoluids?

  As the speed of a moving fluid increases, the pressure in thq l n:-v7cu 7i;wo* a0 kod*(3rf*1wxjwd kadze fluid

  Water flows through a pipe. The diameter of the pipe at poiq oi;x .xojj*(nt B is larger than at point A. Where is the water;(xqi* . ojjxo pressure greatest?

  When you blow some airfo /j j4h3 um35i+jvzn above a paper strip, the paper rises. This is because

  A sky diver falls through the air at terminal velocity. The force ozz lxtxw +4r*li((qg0 f air resistance on him iiw0+t(zxx z g(rl*q4 ls

  Two Styrofoam balls, of radii R and 2R, arl. lgor/d(s9iha0:q o zi2 vi6y*lw(f e released simultaneously from a tall tower. Which will rqsidwgh20ia/9o( zyf(:*6l vo l lr.ieach the ground first?

  When a small spherical rock of radius r falls through water, it experl zb+r5 /xqu vkh9*2vliences a dr 5+rbqvz*2uk lxv9/hlag 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 greatest 9u+ef(.npdj+ed w7uz*1 vh p6 mhs9ml effect on the flow of fluid through a narrow pipe? That is, if you made a 10% chanl7mj u (fphe+ v.zh*mnw91p6ue9ds +dge 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 h2(ed3w+ pijlr as 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 iw r+dej 2p3l(rate in pipe B?

  Two horizontal pipes have the same diameter, but pipe B is twice as long as p ::.rzmpnwsprfx c22; ipe A. Water undergoes viscous flow in both pipes, subject to the same pressu.n: cpzf xswp22 ;:rmrre 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 often tas shkl; zyk dfr6h-;4y8tes 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 is readily explained ih y8 kd;r-kzlsh4yf;6 n terms of

  When a tube of diametr 6slevpn(2(uiktkgw- 0 z +mnie,7j ;er d is placed in water, the water rises to a height h. If the diameter were half as great, ho(+-u tzipilj76mev2 ,gkw kn (sren 0;w high would the water rise?

  Certain insects, such as the water bug, are sufficiently lightweighj01bgg. ey sd7tx2q9ht that they can run on top of water wit q07h9g.yjgdx1 tebs2hout 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 of bug B?

  Certain insects, such as the water bug, xz; qq azbhnh ;uad,1 s++w./care sufficiently 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, ea;/,az;h hscq1d.wb x u+z+ nqtc. What is the maximum upward force on the feet of bug B?

  A plastic block of dimensions 2.00 cm x 3.00 ub+n6ig *1ox; eckpt9cm x 4.00 cm has a mass of 30.0 g. What is its dkpn6cte;o 1*gu 9i+bxensity?

  A liquid has a specific gravity of 0.35k,w, n9i,v- ce7mncei7. What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 cm. What i/wm) f/oqc)(s gdwulac+/ ne-s the maximum pressure it+wog en)w uq-lasmc( c// /)df can exert on a horizontal surface?

  A person weighing 900 N is standing on snowshoes. Each snowshoe ha6kao4 alc0vsgvir u:*b 4/am vk3nd8/s area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a submarine withstand at a- :un ckc4 tcyjwn)/( 3q6lrzm depth of 120.0 m in the o/3nc)ml 4c uz-w6c jq yt(:krncean?

  A circular window of 30 cm diametestma1.q(6 o trr in a submarine can withstand a maximum force of rat 6(.otqsm1 $5.20 \times 10^{5} \; N$. 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 and37hvq. rfv r 1z7pz3bsolute pressure is 300 kPa?

  What is the gauge pressure at 0800cvazzt v la location 15.0 m below the surface of sea? (The density of se0zv0zt 08l vacawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 87s6yf*6gyu8fx uknbnr2 i0l8, jequ 15.0 m below the surface of sea? (The density of sea66r uykni, *2j nf7u8b8xf0yeuq lsg8water is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the smal./w921axh bt:4 sx 3f*7 7a4bxilipattz f jwml piston of a hydraulic machine. The small piston has ar 4/ z7*x9txix7awptwajb24.lh3i baftfm s 1:ea $2.0 \; cm^{2}$. 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 oe5 (xsl)bfzsr 63fqj)f 5.0 cm and the large piston has a radius of 15 cm. What force must be applied on the small pistjf)sr5zl3qx)b 6es(f on 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 hydraulithj7up 5frlse1qy+ss8 ams+ 4* xz.,cc piston. What force needs to be applied to a 5.0 jy.m p+s zesarx, thl7+scu51q4*8f s cm diameter piston to accomplish this?

  The small piston of a hydraulic lift hfdz i1 3-y(fxb/xanw* d6q;wfas a diameter of 8.0 cm, and its large piston has a diameter of */ ;(nbw ad-wyz1qdf3i6fx xf40 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 30yqujzt3q)ld k;*k m1 2 N in water. What is the buoyant force oj kml k);21zuq dqy3*tf the water?

  An object has a volume nqx au,5c;j )kof $4.0 \; m^{3}$ 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 whilefa ne2a zm(hh0o;e3u -mg* vb1 submerged in water. What is the tension in the string? (The spb 1m(v uoz h-af;*n2gh3a0e emecific gravity of iron is 7.86.)

  If the density of gold isasvyuq6, 8wc8 $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submar1 i:g fb559hy-wb6uov) pajkl 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 azpwt7f/y k32u- 9 hi d4orf,kpir and 6.86 N when it is immersed in water. What is the specific gravity4y/ wt zodukp2i7 ph3f-kfr 9, of the object?

  A container of water is pl)itzx+2o s 9k4 e0glqjaced on a scale, and the scale reads 120 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread an i0jtex)s q9lk2z+ g4od 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 1.0 k3v8q/:h aa5pi,g9hedz vp w(og 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 12vr4v 9 yz d(/0qh5llxr cm and diameter 2.0 cm will just barely float in x(5lyh /ql rdv49rv0zwater. What is its mass?

  A rectangular box of negligible mass measures 5.0 m long, j ima:-y(lrcq7u( rkjm8 9vzh *ho8l1 1.0 m wide, and 0.50 m high. How manyqj j zikrmc l7198-ul(hamh8 y*: (orv kilograms 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 its volumekq3f// kv, np4fttl0t jk1jnl 5:bar8ax0kc8 beneath the surface of the water. The weight o 31kn 8 klt, qtk0facx 0a:n854bjvfrp/kl/tjf the displaced water is 2000 N. What is the weight of the object?

  A solid object floats in water with three-fourths of its volume be m9ytq*oe 9:dxneath the surface. Wha9*x oe:9t qydmt is the object's density?

  A 200-N object floats wisofl +)cg;x 9ath three-fourths of its volume beneath the surface of the water. What is the buoyant force on )xfa9c+;s og lthe object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What is ther*i.e ix0pi8p 9 y-kxw minimum area of the floix-ii89prk* wxye .0 pe 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 diametes,m xgkz:dx2 5p.p+39qje75q n8 bqca8 rcl var 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 2.0 cm di7.ke,0 p6xf7q5slz pw ;ezyyh5v+ bklameter restrictebws + zp57y.6qv7;kl hek0fpz,l 5yxion in the line. What is the velocity in this restriction?

  Water flows at 12 m/s in a horizontal pipe -a4 fz+1:hjqpn2:j f5t wuxugwith 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 fountain with kuapn8l :9nh (ne th(2300 kPa, if t(tua e:k2(n9 nh phnl8he fountain is 30.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of a wate bzh1zs+kyx n6/ l/:tir storage tank that holds water at a depth of 15 m. At what rate will water flozl1x :/t y+nzks/hb6iw out of the hole?

  Water flows through a horizontal pipe of cross-sectional areni44; s+8c0twzb7tjv/h kz iv a $10.0 \; cm^{2}$ 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 Pat+hclu 47l9(kzql8qtgxm8 +a -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 diamtu c++4 a g8mqk zqx79tll8lh(eter? 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 of fatty tissue on the walaoyya+l wp* bp jzd7 4z,57sx9l of an artery decreased the radius by 10%. By how much would the pressure provided by the hyz p pox5ajz4sy*7,aw7ld9b+eart have to be increased to maintain a constant blood flow?

  Two narrow tubes are placed in a pan of wat ial1hd )kh2h 9kbr6w4er. Tube A has twice the diameter of tubekihd 41wkla2 6h)br9h B. If water rises 24 cm in tube A, how high will it rise in tube B?

  The surface tension ofn/,ow*ale 3fi 2x,w xpv igli c-:.l( stw5sa1 water is 0.073 N/m. How high will water rise in a capillary tube of diameter 1.vx,s,5/o xs3inw (.-w* t fw gacpl12i:ille a2 mm?

  232

  To what height would water at 0 degree Celsius tkhevd)o 4a8ve wucow157w u8x 4pt 13rise in a glass capillary tube with a diam4xtkdco874e eot 8awv)1 p35uwu w1vh eter of
0.50 mm?

  A narrow tube is placed vertically in a pan offr- n9b 3ujg0x 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 l0g -fbu3nrjx9owered 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 length 0.120 m and widt d ,sxty;++bezh 0.600 m with a soap film formed within its cz+tsd y exb,+;onfined 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 leng29s af) urmwkb:1dl6d th 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 s) :l9darswbk62m u fd1urface tension 0.026 N/m. How much work is required to move the adjustable long side so that the frame is 12 cm square?