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C~ $$ 5K   K6++ [7 8 JJ9f// :1f ; <899 ?=- >   ?   @@ Ax99 iBO   |Co ~DrWW E r%% Fvr G   H YIl   hJ   K   |L/   M/   NR   OR   PR   Qu   Ru   Sv T   U+   V+   W,  X ,   !YO   ,ZO   7[*O   J\r  r]   ^SS$$ "Kr $$ (} #   (~ F  @d)  99 ) ,, ) ?   ) ?   ) V?99 *   + +6,, + Z,, +  z99 +    +    ,  `99 XTXPXLZH [D Z@Y<Y8Z4X0X,"J($R $&[9 )8XPHY 1150 Doug Davis Chapter 9; Rotations 9.10, 21, 29, 32, 33, 38, 41, 47, 51, 52, 54 corrected 11/2/95 9.10 It requires 6 seconds for a phonograph turntable initially rotating at 33 rpm to reach 45 rpm. Assume the angular acceleration is uniform. How many revolutions are made during this time? wi = 33    = 3.46  wf = 45    = 4.71  a =  = [(4.71 3.46) rad/s]/[6.0 s] = 0.208  q = qi + wi t +  a t2 q = 0 + (3.46 ) (6 s) +  (0.208 ) (6 s)2 q = 20.76 radians + 3.75 radians = 24.51 radians q = 24.51 radians  = 3.90 revolutions 9.21 A ventilator fan is turning at 600 rpm when the power is cut off and it turns through 1000 revolutions while coasting to a stop. Find the angular acceleration and the time required to stop. wi = 600    = 62.8  wf = 0 (qf qi) = 1000 rev  = 6 280 rad wf2 = wi2 + 2 a (q f qi) (0)2 = (62.8 )2 + 2 a (6 280 rad) (0)2 = 3 948  + (12 560 rad) a (12 560 rad) a = 3 948  a = 0.31  w = wi + a t 0 = 62.8  + ( 0.31  ) t (0.31  ) t = 62.8  t = 203 s 9.29 A solid, uniform cylinder of 12 cm radius with mass of 5.0 kg is free to rotate about its symmetry axis. A cord is wound around the drum and a 1.2 kg mass is attached to the end of the cord. Find the acceleration of the hanging mass, the angular acceleration of the cylinder, and the tension in the cord.  For the 1.2 kg mass, take down as positive and apply Newton's Second Law, Fnet = m a Fnet = 12 N T = (1.2 kg) a 12 N T = (1.2 kg) a For the rotating cylinder, apply the rotational form of Newton's Second Law, tnet = I a tnet = r F sin q tnet = (0.12 m) (T) (1) since q = 90 For a solid cylinder, I =  M r2 I = (0.5) (5.0 kg) (0.12 m)2 I = 0.036 kg m2 Therefore, tnet = (0.12 m) T = (0.036 kg m2) a At the moment, we have three unknowns, T, a, and a, in two equations. The angular acceleration of the cylinder and the linear acceleration of the cord or of the hanging mass are connected by a = r a a = (0.12 m) a a = a / 0.12 m (0.12 m) T = (0.036 kg m2) a / 0.12 m T = (0.036 kg m2) a / (0.12 m)2 T = (2.5 kg) a Now we have two equations in two unknowns 12 N T = (1.2 kg) a 12 N (2.5 kg) a = (1.2 kg) a 12 N (2.5 kg) a = (1.2 kg) a 12 N = (3.7 kg) a a =  a = 3.24  T = 8.1 N 9.32 A 10 kg block sits on a horizontal surface with coefficient of friction of 0.2 between the block and the surface. A string runs from this block over a wheel of radius 10 cm and moment of inertia of 2.0 kg m2 and is attached to a hanging 5 kg mass. Find the acceleration of the masses, the angular acceleration of the wheel, and the tension in the string on each side.  As initially stated, there is no acceleration because the friction force is as great as the hanging weight. Therefore, in class, I changed the hanging mass to 5.0 kg and changed the moment of inertia of the pulley to 2.0kgm2. Notice that the tension is different on the two sides of the pulley because the pulley is (very) massive. For the 10-kg block on the horizontal plane, we can write Fnet,x = TL Ff = (10 kg) a and Fnet,y = FN M g = FN (10 kg) (10 m/s2) = 0 FN = 100 N We can use this information to determine the friction force, Ff = FN = (0.2) (100 N) = 20 N Then the Fnet,x equation becomes TL = 20 N + (10 kg) a For the massive pulley, we have tnet = r TR r TL = (0.10 m) TR (0.10 m) TL tnet = I a = (10 kg m2) a (0.10 m) TR (0.10 m) TL = (2.0 kg m2) a We now have four unknownsTL, TR, a, and ain two equations. The angular acceleration of the cylinder and the linear acceleration of the cord or of the hanging mass are connected by a = r a a = (0.10 m) a a = a / 0.10 m (0.10 m) TR (0.10 m) TL = (2.0 kg m2) a / 0.10 m TR TL = (2.0 kg m2) a / (0.10 m)2 TR TL = (200 kg) a We now have three unknownsTL, TR, and ain two equations. We still must apply Newton's Second Law to the hanging mass. There we may as well take down as positive, Fnet = w TR = m a (5 kg)(10 m/s2) TR = (5 kg) a 50 kg m/s2 TR = (5 kg) a Now we have three equations for three unknowns, TL = 20 N + (10 kg) a TR TL = (200 kg) a 50 N TR = (5 kg) a TR [20 N + (10 kg) a] = (200 kg) a TR = 20 N + (190 kg) a 50 N [20 N + (190 kg) a] = (5 kg) a 30 N = (195 kg) a a =  = 0.15  a = 0.15  a = a / 0.10 m = 1.5  TL = 20 N + (10 kg) a = 20 N + 1.5 N = 21.5 N TR = 20 N + (190 kg) (0.15 ) = 49.2 N 9.38 Assume a playground merrygoround to be a uniform cylinder or disk of 150 kg and 1.8 m radius. What is its moment of inertia? It is initially at rest when a 50 kg child, running at 4 m/s, in a direction tangential to the edge of the merrygo round, jumps on. What is its angular velocity after the child sits down on the edge? For a solid disk or cylinder, Idisk =  M r2 Therefore, the moment of inertia of the merry-go-round is Idisk =  (150 kg)(1.8 m)2 = 243 kg m2 The initial angular momentum of the child is L = m v r = (50 kg)(4 )(1.8 m) = 360 kg m2/s The initial angular momentum of the merry-go-round is zero. So the total initial angular momentum of the entire system is Linitial = 360 kg m2/s If the bearings of the merry-go-round are well oiled this should be the total final angular momentum, Lfinal = 360 kg m2/s Lfinal = I w but now the moment of inertia is the moment of inertia of the merry-go-round and the child Ichild = m r2 = (50 kg)(1.8 m)2 = 162 kg m2 Itotal = Idisk + Ichild = 243 kg m2 + 162 kg m2 Itotal = 305 kg m2 Lfinal = I w = (305 kg m2) w = Linitial (305 kg m2) w = 360 kg m2/s w = 1.18  9.41 What is the kinetic energy of tire with moment of inertia of 60 kg m2 that rotates at 150 rpm? KE =  I w2 w = 150    = 15.7  KE =  (60 kg m2) (15.7 )2 KE = 7 400 J 9.47 A disk rolls without slipping down a hill of height 10.0 m. If the disk starts from rest at the top of the hill, what is its speed at the bottom? Initially, the disk has gravitational potential energy PE = M g h = M (10 m/s2) (10 m) = M (100 m2/s2) At the bottom all of this energy has become kinetic energybut we have both kinetic energy of translation and kinetic energy of rotation, KEt =  M v2 KEr =  I w2 If, as we assume, the disk rolls without slipping, then v = r w or w =  Notice that we are not given the radius or the mass of the disk. This may be somewhat disconcerting, but we will continue anyway and expect that these will "disappear" in the end. KEtot =  M v2 +  I w2 KEtot =  M v2 +  I ()2 KEtot =  M v2 +   v2 For a disk, I =  M r2 Therefore, KEtot =  M v2 +   (  M r2) v2 KEtot =  M v2 +  M v2 =  M v2 Efinal =  M v2 = M (100 m2/s2) = Einitial  v2 = 100 m2/s2 v2 = 133 m2/s2 v = 11.5 m/s 9.51 An Atwood's machine is composed of a 2-kg mass and a 2.5-kg mass attahed to a string hanging over a wheel that has a radius of 10 cm and a moment of inertia of 12.5 kg-m2. The 2.5-kg mass is initially 1.0 m above the floor. Use conservation of energy to find the speed of this mass just before it hits the floor.  Initially, KEtot = 0 PE2kg = 0 PE2.5 = (2.5 kg)(9.8 m/s2)(1.0 m) = 24.5 kg m/s2 = 24.5 J Etot,i = 24.5 J Finally (just before the 2.5 kg block hits the floor), KE2kg = (1/2) m v2 = (1/2) (2.0 kg) v2 = 1.00 kg v2 KE2.5 = (1/2) m v2 = (1/2) (2.5 kg) v2 = 1.25 kg v2 KErot = (1/2) I w2 = (1/2) (12.5 kg m2) w2 = (1/2) (12.5 kg) (v/r)2 = (1/2) (12.5 kg m2) (v/0.10 m)2 = 625 kg v2 PE2kg = (2.0 kg)(9.8 m/s2)(1.0 m) = 19.6 kg m/s2 = 19.6 J PE2.5 = 0 Etot,f = 1.00 kg v2 + 1.25 kg v2 + 625 kg v2 + 19.6 J Etot,f = 627.25 kg v2 + 19.6 J Etot,f = 627.25 kg v2 + 19.6 J = 24.5 J =Etot,i 627.25 kg v2 + 19.6 J = 24.5 J 627.25 kg v2 = 4.9 J v2 = 4.9 J/627.25 kg = 0.0078 m2/s2 v = 0.088 m/s v = 8.8 cm/s 9.52 A basket of tomatoes of mass 20.0 kg is being hoisted by a windlass. The rope is wrapped around an axle that is a solid cylinder of wood having a radius of 0.1 m and a mass of 10 kg. The mass of the crank handles is neglibible. The operator lets go of the handle when the basket is 6 m above the ground. With what linear speed does the basket strike the ground? The moment of inertia for a solid cylinder (or a disk) is I = (1/2) m r2 I = (1/2) (10 kg) (0.1 m)2 I = 0.05 kg m2 The velocity of the load and the angular velocity of the windlass are connected by v = r w v = (0.1 m) w w = v/0.1 m As always, good diagrams make life much simpler.  Initially, before the windlass and load are released, we have KEtot,i = 0 since nothing is moving PEi = m g h = (20 kg)(9.8 m/s2)(6.0 m) = 1,176 kg m2/s2 = 1,176 J Etot,i = 1,176 J In this problem, as in the previous one, the Kinetic Energy of the wheel or drum or cylinder is far greater than the Kinetic Energy of the masses and dominates the entire motion. Finally, after the windlass has increased its angular speed and the load has increased its linear speed, and just before the load hits the f loor, we have KEtr,f = (1/2) m v2 = (1/2) (20 kg) v2 = 10 kg v2 KErot,f = (1/2) I w2 = (1/2) (0.05 kg m2) w2 = (1/2) (0.05 kg m2) (v/0.1 m)2 = KErot,f = (2.5 kg) v2 KEtot,f = (12.5 kg) v2 PEf = 0 Etot,f = (12.5 kg) v2= 1,176 J = Etot,i (12.5 kg) v2= 1,176 J v2 = 1,176 J / 12.5 kg v2 = 94.1 m2/s2 v = 9.7 m/s v = 9.7 m/s 9.54 To demonstrate conservation of angular momentum a Physics professor stands on a frictionless turntable with a 2 kg mass in each outstretched hand. An assistant gives9 her a small initial angular velocity of 2 rad/s. She then drops her hands to her sides and her angular velocity increases dramatically. As a rough estimate, consider her arms to have mass of 5 kg each and to be 1 m long rods hinged at the axis of rotation. The rest of her body has an approximate moment of inertia of 0.55 kg m2. Find her final angular velocity when the masses are 0.25 m from the axis of rotation. Calculate the initial and final values of the rotational kinetic energy and explain the cause of the difference in these values. Ibody = 0.55 kg m2 Irod =  M l2 Iarms, out = 2 [  (5 kg)(1 m)2 ] = 3.33 kg m2 Iwts, out = 2 [ (2 kg) (1 m)2 ] = 4 kg m2 Itotal, initial = (0.55 + 3.33 + 4) kg m2 = 7.88 kg m2 The initial angular momentum is Linitial = Iinitial winitial Linitial = ( 78.88 kg m2) (2 ) = 15.76  KEinitial =  I w2 =  (7.88 kg m2)(2 )2 KEinitial = 15.75 J (It is only a coincident that L and KE happen to have the same numerical value!). As she pulls in her hands, the total moment of inertia changes, Ibody = 0.55 kg m2 Iarms, in = 2 [  (5 kg)(0.25 m)2 ] = 0.21 kg m2 Iwts, in = 2 [ (2 kg) (0.25 m)2 ] = 0.25 kg m2 Itotal, final=(0.55 + 0.21 + 0.25) kg m2 = 1.01 kg m2 Total angular momentum is conserved, Lfinal = Linitial Lfinal = Ifinal wfinal = 15.76  = Linitial (1.01 kg m2) wfinal = 15.76  wfinal = 15.6  KEfinal =  I w2 =  (1.01 kg m2)(15.6 )2 KEfinal = 123 J Work must be done on the weights to pull them in toward the axis of rotation. This work that is done by the dizzy professor shows up as increased kinetic energy. 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' ~ & $0<"x!| <8<8 p"?`"?`"x0# 8>0$8p0$880$?` #?x` $8|<` #8?` < 8?` | @ x > ? ?0~<@~8@>?!? 0?<<>x???>?|?@$0 ?,0@0   ?C 0    ` ` ` ` @ @ @                  ` ` ` ` ` ` p p ` ` ` p 0 0 0 8 8 8   0 0 0  @ @ @ @ @ @                88<          0 0 0  ` ` ` ` ` @ @                    ` ` ` ` ` ` ` ` ` ` ` ߀ `x#6p 8??  o    @~r~r)?   ? ?? ? ?  ?C?x"tp1?@>p|? ~?89x?0px|~<?<? ?  ! ~8p<<|8x p@88px<<ppp0ppxx 88808p<8< px8p`px88p```08  8p?px >8|x 8 0p`C@` x x8p<p<p0008808`8`8@`8`808088888 8 888888 8@8@8 8` ` p 00 08 p8 p p ` `  `           @ ` ` p 0 8 8 8                      @ @ @ `    ` ` ` p p p 0 x0 |  ?0 8 8880                   x```8p8p00p0pp``           ` p 0 8 8   8 8 x      ` p 8 8    8 x p p 8 8       < || x p       |< >< x     x | >> x    | >   | x |     > >|     ~ ?~ |   ~ ?  > ?    ?            ?x   ?   dNISIe_dNISI  P+"1dNISIdNISI 0Ja P_ """"#dNISI 0P_,"New Century Schlbk" .+\1.2 kgdNISI dNISIdNISI  ,C"kdNISI 0,C( -= TdNISI dNISIdNISI   0/YF| 5]D "-dNISI 05]D+141.2 kgdNISI dNISIdNISI   a^r0 "1h ab_vs0 g"Bi* yB """"#dNISI 0yB(C w = mg = 12 NdNISI  s!"CdNISI 0s!(tTdNISI   aCFWZ0 H"2P `e$Z"d "e 5BDX """"#dNISI 05BDX(ACadNISI  et)"AKdNISI 0et)(qadNISI dNISIDSET.H @8:eg4'0)`@>GJ`@>GHc!>*D#H.WI$>\o0OIk*_BJ`\sp 0OIGld` BJv@ &Hp& 'HBDUX 0lI7TEHBJրb!#7 @GYbed#Gci ed#G4@IY(Hcx*)H6* IIC C Cj~~C     ?       ?  ~ ? ?8  ?  ?<|(@#?}"~???$x?'8?~01@p~|00~`< @0 `?|0 @0|p`x`  @ <@x  ``  |>0|@ ` @ 09  @8 0@~` ?0@p`?   `8@>0` <@@8  0p00`` x8 @@  #00 ? p`@`@@?"#8?"p&?! 8ppx <  @x`@@@|>?< p| <x8p 0 `0`| @`! @<!`x ?   <~8 x08`p0`p0 ````@xx<<p   8 00 `  08``<0p080`000` 8 `@@ `@ `@     80 p    `0 p0`000`0`0`0@0 `p  @`0@p` ! 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! !"YY "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"rWE q"eWE q"v,"New Century Schlbk" .+ revWEWE q"mWE q"iWE q"n(minDSET.HD:l |W:h6* |DY Y Y"YY W"xprWEwdxpr"WEWEq"##"T##WEWE"QWE WEp"New Century SchlbkWE q"2WE q" WE q"WE q" WE q"rWE q"aWE q"dWE q"iWE q"aWE q"nWE q"s,"New Century Schlbk" .WW+ 2 radiansWEWE q"rWE q"eWE q"v+revDSET.HE:d |%:`6* |DFF' ' '"YY %"xprWEwdxpr "WEWEq"##""##WEWE" WEWEp"New Century SchlbkWE q"mWE q"iWE q"n,"New Century Schlbk" .%%+ minWEWE q"6WE q"0WE q" WE q"s+60 sDSET.HF:\ |:X6* |D  "YY "xprWEwdxpr"WEWE" WEWEp"New Century SchlbkWE q"rWE q"aWE q"d,"New Century Schlbk" .* radWEWE q"s+ sDSET.HG:T | :P6* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.HH:L |:H6* |D  "YY "xprWEwdxpr"WEWE" WEWEp"New Century SchlbkWE q"rWE q"aWE q"d,"New Century Schlbk" .* radWEWE q"s+ sDSET.HI:D | :@6* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.HJ:< | :86* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.HK:4 | :06* |D    "YY  "xprWEwdxpr"WEWE" WEWEp"New Century SchlbkWE q"v,"New Century Schlbk" .  * vWEWE q"r+ rDSET.HL:, | :(6* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.HM:$ | : 6* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.HN: | :6* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.HO: | :6* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.HP:  | :6* |D    "YY  "xprWEwdxpr"WEWE" WEWEp"New Century SchlbkWE q"v,"New Century Schlbk" .  * vWEWE q"r+ rDSET.HQ: | :6* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.HR9 | 96* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.HS9 |96* |D  "YY "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"I,"New Century Schlbk" .+ IWEWEPWEWE q"r(rWEWEWE q"2 (2DSET.HT9 | 96* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.HU9 | 96* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.HV9 | 96* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.HW9 |96* |D  "YY "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .+ 1WEWEPWEWE q"r(rWEWEWE q"2 (2DSET.HX9 | 96* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.HY9 | 96* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.HZ9 | 96* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"4*4DSET.H[9 | 96* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"3,"New Century Schlbk" .  * 3WEWE q"4*4DSET.H\9 | 96* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"3,"New Century Schlbk" .  * 3WEWE q"4*4DSET.H]9 | 96* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"3,"New Century Schlbk" .  * 3WEWE q"4*4DSET.H^ 9T R_6* DSET.H_9Q^P`Mg6* DSET.H`9P_LaN[LT6* DSET .Ha_9P`(Wi0T7''0T6jj0T=0TO0U[bF I7`0T!s.cF[dF: eFl fFLL <VgAg <W6* DSETTba999|9l$P X  Y 9I = 12.5 kg m2ZNDSETTca9p9x;x9tl   P  X ;|r = 10 cm = 0.10 mZNDSETTda;l;t;d;pl  P  Z ;h2.5 kgZNDSETTea;X;`;P;\%  P  X ;T2.0 kgZNDSETTfa;D;L;<;H'  P  X ;@1.0 mZNDSET.Hg;8 P_UW0T7T{T0T60T<j0[hF v70T!. iFzDj=blF' mFL-L <V++ <W#n [LT}:h 0\w))0]A!;0] L8sn DWoF{"pF!.qF6* DSETThg;,;4;$;0lP X  Y ;(I = 12.5 kg m2ZNDSETTig;; ;;l   P  X ;r = 10 cm = 0.10 mZNDSET.Hj; ;+g)90U !2kF6* DSETTkj;;:;&  P  Z :2.5 kgZNDSETTlg::::%  P  X :2.0 kgZNDSETTmg::::'  P  X :1.0 mZNDSET.Hn:',gSNZ\%ZT%ZT6* DSETTog::::P  S :wZNDSETTpg::::  P  Z :vZNDSETTqg::::  P  Z :vZNDSET.Hrw`: s6* DSET%.HsL:r/0WtN3[LT ݀uɀ$$T VM[LT 6[LT 6[LT*[LT $[LT! [LT& [LT&/ [LT1: [LT:C [LTBK![LTKT,[LT 1[LTG P([LTS(v S%wS!xS+y #Rl[LTX$$^rW~$$T.lql[LT[L_=JzFAKKh`;F{FhuZ\(m2uZ\'u0| Z\ x!|F.486"8\+3#8\*F1M$8\6* DSET.Ht:(so[LTl'$$T6* DSET.Hu:JsII[LT%II[LT6* DSET.Hv--|LsR,Z\K2Z\6* DSET.Hw--xLsR,Z\K2Z\6* DSET.Hx--tLsR,Z\K2Z\6* DSET.Hy--pLsR,Z\K2Z\6* DSETTzsdl\h&  P  X `6.0 mZNDSETT{sPXHT  P  X LvZNDSETT|s<D4@!P a 8wZNDSET.H}0 | ,6* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"3*3DSET.H~( | $6* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"3*3DSET.H  |96* |D; ; ;"YY 9"xprWEwdxpr"WEWE" 9WEWEp"New Century SchlbkWE q"rWE q"aWE q"dWE q"iWE q"aWE q"nWE q"s,"New Century Schlbk" .99* radiansWEWE q"s+ sDSET.H |,6* |DRR. . ."YY ,"xprWEwdxpr"WEWE",WEWEp"New Century SchlbkWE q"kWE q"gWE q" WEPWE,"New Century Schlbk" .,,* kg WE q"m)mWEWEWE q"2 ( %2WEWE q"s (sDSET.H |  6* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.H | 6* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.H |96* |D; ; ;"YY 9"xprWEwdxpr"WEWE" 9WEWEp"New Century SchlbkWE q"rWE q"aWE q"dWE q"iWE q"aWE q"nWE q"s,"New Century Schlbk" .99* radiansWEWE q"s+ sDSET.H | 6* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"3*3DSET.H |,6* |DRR. . ."YY ,"xprWEwdxpr"WEWE",WEWEp"New Century SchlbkWE q"kWE q"gWE q" WEPWE,"New Century Schlbk" .,,* kg WE q"m)mWEWEWE q"2 ( %2WEWE q"s (sDSET.H |,6* |DRR. . ."YY ,"xprWEwdxpr"WEWE",WEWEp"New Century SchlbkWE q"kWE q"gWE q" WEPWE,"New Century Schlbk" .,,* kg WE q"m)mWEWEWE q"2 ( %2WEWE q"s (sDSET.H |96* |D; ; ;"YY 9"xprWEwdxpr"WEWE" 9WEWEp"New Century SchlbkWE q"rWE q"aWE q"dWE q"iWE q"aWE q"nWE q"s,"New Century Schlbk" .99* radiansWEWE q"s+ sDSET.H | 6* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.H | 6* |D    "YY  "xprWEwdxpr "WEWE" WEWEp"New Century SchlbkWE q"1,"New Century Schlbk" .  * 1WEWE q"2*2DSET.H |96* |D; ; ;"YY 9"xprWEwdxpr"WEWE" 9WEWEp"New Century SchlbkWE q"rWE q"aWE q"dWE q"iWE q"aWE q"nWE q"s,"New Century Schlbk" .99* radiansWEWE q"s+ sDSET.H]l!6*]lDSET.HSSUSp %S @ SSSeS5SP S  S! SVp & @ f6P    !! 6*]lDSET.H`0. *`0 L LLLLLLLLLLLDSETT (rb(b e( e & ))PHY 1150, Homework, Chapter 9, page  ZNFNTMCUTSDSUMHDNISTYLD@STYLsrfs srrr=     Y       E              M    !  #  %  '  (  *  -  /  0  2  &5  6 7  !9  ";  #=  $?  %@  &A  'B  (D  )E *F +G  ,H -I .J  /K 0NK1O  $2P 3SP$4T  5U  6V  7W  8XP9YP :ZP!;[ <\ =] >^ ?_ @` AaPBb Ceb"DHASHd*d*d*d/dXd( $!.!.!.!/"!/!!0 !0!3%!4&"-"-"-"(".".'"."/"/"4#-ġ+ Ģ*  %-%x3v*"%m1)%m,%4& $) ( A ( 3 ( 8 ( : ) 9( 0%y+%v<%;'%>&='7 %5&y.&v@'v?& 2& /%6Ah*CB!.#B!.$B"-C(BD+ D* L:Qhjazo}Bod#  CHARs   "     S W/  @ @@ @   @          HASH      /  " ! R CELLsB"HASH  GRPHs0n}lobzobz vwkwkkHASH}omd %d pmy#y p mmx l RULRr@..}$.l...D..}@$.l...D..}l...D...}@l...D.....$.l...D..@$.l...D.. l...D...@l...D...}@..@..HASH\ ^ u   ÛÜ @@^A u A  BCCf"LKUP  "$&)+,.13468 :!<">#C$%&'L()*+,-./MQ012Rc3456789:;<=>?@ABdC $NAMEDefault Default SSHeaderBodyFooterFootnoteFootnote IndexDFNTM HelveticaGenevaPalatinoSymbol"New Century Schlbk! 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