13.47: Which one of the following choices9hxtg:xewqe ) ts/ z5v+,+sjv best represents the magnitude of the angular momentum of /zsq e j9he)tgx ,tv5+v+s w:xthe Earth (expressed in base MKS units) associated with its rotation about its axis?

  17.37: Which one of the following choices best approx6/xfi yha90 : ug72hnimpo8lrimates the magnitude of the Earth’s angular momentum (expressed in basen/f i0hy:iu9o p 8ag 62lrh7xm MKS units) associated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant speppatgl v7va e3 46k8fex92 v74jxb: ueed of 5.0 m/s along the line shown in the figure. What is the magnitude of the particle’s angular momentum calculated from the origin( unit: p4 l2xv7j43eua ak7evfte p:8g bv 9x6$kg.m^{2}/s$)?

  11.35: Mary rides her bicycle dire4jdwe0j4neob q 42 7uwcted 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 chd7u4owjew bq244e n0 joices 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 m.b4qtwv, wlp483o k class M have radii R and 2R. Each sphere is rotating about a fixed axis through a diameter. The rov.bc3tq wlpw4o l8k4,tational kinetic 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 are made of the same material. One disk hzc52aj;jpy n3 as radius R while the other disk has radiu3 ;2 nypzj5acjs 2R. Both disks are rotating about a fixed axis perpendicular 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 momentu: (ao z w1s8k/kvu2v: jwpn8iv)ccdj /m of a system to be constj8:v8c) vcwp d/o(kwajisu : nz2k 1v/ant?

  01.27: A spinning ice skater can increase ou7 o d:z/fkbfk,n3)nhis rate of rotation by bringing his arms and free leg closer to dn/ufo zkkbno): 3f,7 his body. How does this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater ha.opet m*p gon9 qq b4:+tk,nh l4bt+8as 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 a8gn y/,x7 vohp 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 string, moves in a;4;josy 5j dukzp;1 /mdbsl.i circle on a horizontal frictionless table as shown. As the4m; l5b d/ ;pjy.us;sjz1doik 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 oq;r2.pojw9rat one end. The rod ha9qo.w;p orj 2rs mass 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 rotat.;-)m 9;xmb pc7-ql5d dxrxntijlb)ving 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 dbjxdxmtn ;)9 5pxl-.rc )b m ilvq-7;line up. When equilibrium is established, the disks are spinning at the same rate. What is the angular speed of the disks at equilibrium?