13.47: Which one of the following choices best represents the mt7/ , .hs3asla-zs+ r5qlap )fnlk6mlagnitude of the angular momentum of the Earth (easpmalt 63l,n.-fsal 7z )s+5rhkql / xpressed in base MKS units) associated with its rotation about its axis?

  17.37: Which one of the following choices best approximates the magn )ou)r;r9oftd) t lcplv7xpeq:9. fq- itude of the Earth’s angular momentum (expressed in base MKS units) associated with);d9t)f.rvrfc)q ou7 qlx l pe9o-:tp its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant speed of 5.0 m/s alolxofa/ :oa89w5ltlj e,hx:((no,ozo ng the line shown in the figure. What is the magnitudej eo:fl5n w llx,o oh(ot,98ax:/oa(z of the particle’s angular momentum calculated from the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle dire4n*j 0bm/ b)v)ooh havcted due South. She applies the brakes quickly bringing the bicycle to rest with the wheels rolling without slipping on the ground. Which one of the following choices best represents the direction of the )*)04o m/n bhjbavohvangular acceleration of the bicycle’s front wheel while it is slowing to rest from Mary’s point of view?

  03.41: Two uniform spheres of mass M have radii R and 2R. Eachy yadjr6fw1 a :6iq/p84sh b;b sphere is rotating about a fixed axis through a diameter. The rotational kinetic energies of the spheres are identical. What is the rasbh pby/r6ja8dqi6:w1y ; f4 atio
of the magnitude of the angular momenta of these spheres? That is, $\frac{L_{2R}}{L_R}$=?

  05.49: Two solid disks are made of the same material. One disk has radius R whip2v0pt)vzu jia -3,gm le the other disk has radius 2R. Both disks are rotating about a fixed axis perpendicular to the disk, through its center. Given that the disks havemuv20av tjpz ig )p3,- equal kinetic energy, what is the ratio of the angular momentum of the disks $\frac{L_{2R}}{L_R}$

  17.24: What condition must be met for the afm(;p*x1e-v8uci3 rf (ack6 omot1zxngular momentum of a system to be constant?81f(ceo(kfmr3x1* zma x ; ctiu6p-vo

  01.27: A spinning ice skater can increase his rate of rota,xmb di*n nkp-hs,:o(tion by bringing his arms and free leg closer to his body. How does this procedure affect the skaters, x*:dp m-no n(ki,hb's rotational momentum and kinetic energy?

  03.32: A figure skatxna(oq:ft+f+ q9ilc: if+ )jq er has a moment of inertia of $5.0 kg.m{2}$with her arms outstretched. If she begins a spin at 2.0 rad/s with her arms outstretched and then brings her arms in tight to her body, her rate of spin increases to 8.0 rad/s in 3 seconds. Friction and wind resistance can be considered negligible.
What is the change in the skater's angular momentum as she brings her arms in tight to her body?

  0.33: A figure skater has a momypes)t h*a(q7 itvpcm29iblt+..99q g 3 myvkent of inertia of $5.0 kg.m^{2}$ with her arms outstretched. If she begins a spin at 2.0 rad/s with her arms outstretched and then brings her arms in tight to her body, her rate of spin increases to 8.0 rad/s in 3 seconds. Friction and wind resistance can be considered negligible.
What is the skater's angular acceleration as her arms are moved in during the three second interval?

  06.23: An object m, on the end of a string, moves in a circle on a horizontah x kki;a*2 1g0guj*jml frictionlemag;k21*hjgk0i * xuj ss table as shown. As the string is pulled very slowly through a small hole in the table, which of the following is correct for an observer measuring from the hole in the table?

  08.40: A point particle of ma 9pmia045 t*a)dsmoysss m collides with a thin rod pivoted at one end. The rod has mass M=2m, length L ,tmsoidama0)*4 9 y5 sp and moment of inertia $I=\frac{1}{3}ML^{2}$ . The particle moveshorizontally with speed V when it hits the bottom of the rod and sticks to it. What is the speed of the particle immediately after collision?

  09.42: A uniform, solid disk with mv asfw2 t4uh2*,3w3lqt. 6:u zcz1qxxn 7kgmbass M and radius R is rotating on a fixed, frictionless platform with constant angular speed ω0 about a fixed axis throq 6 3t*us7:x42w h2tw.3 agznuqv bmlzc1x ,kfugh its center. A second uniform solid disk of mass 2M and radius R/2 is placed from rest directly on top of the first disk so that the centers of the disks line up. When equilibrium is established, the disks are spinning at the same rate. What is the angular speed of the disks at equilibrium?