13.47: Which one of the follolj hyr---;nawmy:7h gdk8c o8wing choices best represents the magnitude of theh87oawmd-n8rcl-;-y k :yjgh angular momentum of the Earth (expressed in base MKS units) associated with its rotation about its axis?

  17.37: Which one of the following choices best approximates the magnitude )nl pc4z+eh7i9p8ijtof the Earth’s angular momentum (expressed in base MKS units) associated with its p c8j9 )iheznpl4i+t7orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant speed of 5.0 m/s along the f9wbs;b n15pm t 7+ppiline shown in the figure. What is the magnitude of the particle’s angular momentum cp59;np1b+7twfbip sm alculated from the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed ds,w on:*jl okp,3 xnv2ue South. She applies the brakes quickly bringing the bicycle to rest with the wheels rxp:l s2onvow,n,j 3k *olling without slipping on the ground. Which one of the following choices best represents the direction of the angular 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 andet03nuf9c ug 5 2R. Each sphere is rotating about a fixed axis through a diameter. The rotational kinetu5 t3 enu0gfc9ic energies of the spheres are identical. What is the ratio
of the magnitude of the angular momenta of these spheres? That is, $\frac{L_{2R}}{L_R}$=?

  05.49: Two solid disks as510acol zc51n:v fvzre made of the same material. One disk has radius R while the other disk has radius 2R. Both disks are rotating about a fixed axis perpendicula0 5f1zc l v5nv1zcao:sr to the disk, through its center. Given that the disks have 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 angular momentum of a system to be kaxg2q 8-)k4 iswjixsv 7)n(p consa4k ix 2qxp)-w8(n s)ij 7kgsvtant?

  01.27: A spinning ice skater can increase his rate of rotatiu9y ospvg7 pnu;0j0+mon by bringing his arms and free leg vp0 ;u0jm7s+ngop 9u ycloser to his body. How does this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater r uqck bq*wvj fe.p)r4q4ma0t+4n46w 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 moment of inertjtqt(+vmu 0-+5wwp taia 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 o11:pshv ,b vdt, riel/f a string, moves in a circle on a horizontal frictionless table as shtpsvhv11,d re/:,bl iown. 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 mass m collides with a thin rod pivoted at one end.9q wx,bn e wc,b)gf95a The rod has mass M=2m, length L ,e)wqwc99,5nb f,b g xa 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 mass M and ra uw83;:ib8ampog1h.yuzh ( aq dius R is rotating on a fixed, frictionless platform with constant angular speed ω0 about a fixed axis through 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 angulahuzo 3pumhgi q8a:ay;.8( 1wbr speed of the disks at equilibrium?