13.47: Which one of the following choices b6,m o3d s4irh 12jjcghest represents the magnitude of the angular momentum of thes h 42jo6j1,hd 3rimcg 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 z20qnp ((izk eof the Earth’s angular momentum (expressed in base MKS units) az2 nkz(( iqe0pssociated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a c*h ajq-h+jpq3onstant speed of 5.0 m/s along the line shown in the figure. What is the magnitude of the particle’s angular m a-qq*hj3+h pjomentum calculated from the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed due South. She applies the t*1d crzt pe41g*iomz /ud,n8brakes quickly bringing the bicycle to rest with the wheels rolling without slipping on the ground. Which one of the following choices best rdt4 di u81gc,n/*m* opezt1zrepresents 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 and 2R. Each sphere c-z au 49a575*rrht(so zestyis rotating about a fixed axis through a diameter. The rotational kinetic energies of the spheres are identical. What is the79ct at 5syhe*r45zs-ru z(a o 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 ofy 0/ mflst 9mp.mrxr,3 xhle,( the same material. One disk has radius R while the other disk has radius 2R. Both disks are rotating about a fixed axis perpemte 9x,y03ml,pfshl.x r/(mrndicular 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 momeuk wahim -nqte)(e hr0*g 5a;:g8 g3luntum of a system to be constant?g)he8u -: e0uqilanga(m3r*; 5tw kgh

  01.27: A spinning ice skater can increase his rate of rotat.1nn/- nilq y2 zyvep6 dt7)ttion by bringing his arms and free ndtin2t6)pyze.7 lv-1ytq / nleg closer to his body. How does this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a momt vqejm pc+/6z.arra(41e8c kent 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 mox3:nqij9 9rr esk()h lment 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 cyv.e dfhpv/ )2ircle on a horizontal frictionless table as shown. As the string is pulled very slowly through a small hole in t/fdvp 2e.y) vhhe table, which of the following is correct for an observer measuring from the hole in the table?

  08.40: A point particle of mas8oq p;jxj kw3.s m collides with a thin rod pivoted at one end. The rod has mass M=2m, length L , and moment of inew qj p38ox;jk.rtia $I=\frac{1}{3}ML^{2}$ . 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)p9ww 3ts3dgvo : *gtoing 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 wopd9g vs3w3)t:ot *gangular speed of the disks at equilibrium?