13.47: Which one of the following choices best repoi8, rdkn4pt (fjuh6j9+9nb vresents the magnitude of the angular momentum of the Earth (expressed in base MKS units) associated with its rot94+b u8 r6dknjti,9(hnpjvf oation about its axis?

  17.37: Which one of the following choices best approximates the magzoi7telu; 5txm p4l .*nitude of the Earth’s angular momentum (expressed in base MKS units) associated wit.7 l;4 l5op tmzuxi*eth its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant speeds b 9/0t -+me,c 10aqghufhfrc of 5.0 m/s along the line shown in the figure. What 0- b0m/sf fccrquh,a1 het 9+gis the magnitude of the particle’s angular momentum calculated from the origin( unit: $kg.m^2/s$)?

  11.35: Mary rides her bicycle directed vdu4 g3g6xewyr :z1/j 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 angular acceleration of the bicycle’s front wheel while it is slowing to rest from Mary’s point ov1jy3zg ex r4wu6/d:gf view?

  03.41: Two uniform se1 vh31mq1ekn .3y2cu;bl ye qpheres of mass M have radii R and 2R. Each sphere is rotating about a fixed axis through a d11qe3;1eeu.k mq cn 2bvyl y3hiameter. 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 diskvf ; v84ic/s *p7bdnjbs are made of the same material. One disk has radius R while the other disk has radius 2R. Both disks are rv;b8fcp4 *jsb/7vd niotating 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 momentum of a system tl 9lkca :-l+ doyyg,x:v/j1mxo be constant?a :g: x-xcdjy/y1o +v9l,km ll

  01.27: A spinning ice skater can increase his rate of rotation by ah f2cr9;;j ozbringing his arms and free leg closer to his body. How does this procedure affect the skater's rotati acor;j;zhf92 onal momentum and kinetic energy?

  03.32: A figure skater has a moment of inertia of -;y loxom1o +g$5.0kg.m2$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 skateb td +zs1ch67zr has a moment of inertia of $5.0kg.m^2$ 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 cim q q(j1(sar,prcle on a horizontal frictionless table as shown. As the string is pulled very slowly through a small hole in the table, w qaj mp,r((1qshich 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 5 ygo8j 4y /8xi .uv:5c,irscepanlr1 a thin rod pivoted at one end. The rod has mass M=2m, length L ,/581u yycpxi,n ve8j4:rs olca gir 5. and moment of inertia $I=\frac{1}{3}M{L}^2$ . 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 diskjd*ixaqc( mc.9: y+en)nmx t2 with mass M and radius R is rotating on a fixed, frictionless platform with constant angular speex.tj*(:dmc mn)iea+yqcn9x 2 d 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?