13.47: Which one of the following choices best repr3 d -aicz9 xi/t7fzk27 jrnxp(esents the magnitude of the angular momentum of the Earth (expressed in base MKS units) associated with its rotation abocp zxki 7fai-7r32(/tdzn x j9ut its axis?

  17.37: Which one of th ie nz mp7mm n67ld61rotr132we following choices best approximates the magnitude of the Earth’s angular momentum (expressed in base M nr631p6mo72zmdlm winrt 1e7KS units) associated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant speeh0*q+u , c3fdbld*mc0 viz d)nllc vs+.t*k: nd of 5.0 m/s along the line shown in the figure. What is the magnitude of the particle’s angular momentq0nzl+sf li:vcntd0dc ,3ukbvl.mcd+*h)* *um calculated from the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed due South. She f vo,4jdi9 dh3:ymv zeez2xh3 4;o2go 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 angular acceleration of the bicycle’s front wheel while it is slowi vd92xo 2djog:43i,f3oh;myhz e4zv eng to rest from Mary’s point of view?

  03.41: Two uniform spheres of mass M have radii R and 2R. Each sphere i qn eq1 ke0nnk(at h;yd8/h54ds rotating about a fixed axis through a diameter. The rotational kinetic energies /td(8 015e qke;qh nnakydh4nof 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 are made of the same material. O o9eqd15l:aeg ix;gm0 u;w8cfne disk has radius R while the other disk has radius 2R. Both disks are rotating about a fixed axis perpendicular to t1a8 ; 9fxie o05gmlg:udw;ecqhe 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 c 9g,z,r v0n +u4xgcyj kiv,3g1tkhg,honstant?gu +v, cgvj9x,nghk30 r hig1yztk ,,4

  01.27: A spinning ice skater cz2.3bx fk:bym cht.re0. 5dj ean increase his rate of rotation by bringing his arms and free leg closer to his body. How dcfydzxjb ..0k25e rht .m e:3boes this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a moment ofadigixmxm52)8c dtxm 26 gu (9 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 skate i*k) 59rfcufkr 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 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 strut h1a/zu/o1y ing, moves in a circle on a horizontal frictionless 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 obseroy1zuu1t /a/hver measuring from the hole in the table?

  08.40: A point particle of mass m collides with a thin rod5 to kpn u.;n py-q6t01mcz-ko pivoted at one end. The rod has mass ;qpt kmpkocnnz1u y. 5to60--M=2m, length L , 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 radius R is rotating on a fio*h5fwc zj )fyv/imt9,qs3 f(xed, 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 cente 9y s/htfof,)qjzimcw * fv35(rs 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?