13.47: Which one of the following choices besj8ih +mxs9i x4t represents the magnitude of the angular momentum of the Earth (expressed in base MKS units) associated with its rh89 js4ixi+ xmotation about its axis?

  17.37: Which one of the following choices best approximates thd1 5m7y 8y74ajvakb kce magnitude of the Earth’s angular momentum (expressed in base MKS units5bky7a vcy18jd 7am4k ) associated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant speed of 5.,oq3ai:na3x r 0 m/s along the line shown in the figure. What is the magnitude of the particle’s angular momentum ca:3aaon3 i q,xrlculated from the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed due South. She applies tc9ioxf -limd 6 jpa) t+8;bsk)he 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 i -dpi+j ;9x6lbao8c)m )kftsof 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 igl d dp,q:l(82R. Each sphere is rotating about a fixed axis through a diameter.g ,d :qll8ip(d The rotational 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 myks.uqmz q6o,7yecu5j 6 ,7 *rc8ttfdisk has radius R while the other disk has radius 2R. Both diskt tm7*c57q,8 qey6,y .kmcufoj rz 6uss 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 i1+9)m;ls l 7f9obqs(sg 9 gsi wi-esdbe met for the angular momentum of a system to be consb1-;dl9e9 is)lswf (q7g +msi gsoi9stant?

  01.27: A spinning ice skater can increase his rate of rotation by bwse i2r7m(l5c ringing his arms and free leg closer to his body. Howmi scrle 5w7(2 does this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a moment of inertia dl 2 sd o5:n(l98s yv/6tf5- mzrve/hvebdbf)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 hacs cs anpv73-)s 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 string, moves in a circle on a horih-avn*d9l, tt h p4qy2zontal frictionless table as shown. Ay4 t,d- hpl9qh*at n2vs 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 e;7 .uw ia 4oef.lr3txbnd. The rod has mass M=2m, length L ,i;3ur4lex o .bfa .t7w 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 30 tp6t yriwt7-c /yi0lbtl4la fixed, frictionless platf y-bttl r0l/i 7y4c 60twtlip3orm 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 angular speed of the disks at equilibrium?