13.47: Which one of the following choices best represents t ahyfmf*9j 64lhe magnitude of 6*4mj9lh ffyathe angular momentum of the Earth (expressed in base MKS units) associated with its rotation about its axis?

  17.37: Which one of the f:0x dv0l/k yx m4uc7hjwb x5l ia4w7z6ollowing choices best approximates the magnitude of the Earth’s angular momentum (expressed iihull 7dj46y0xwk74zxv/wb xm:ca 50n base MKS units) associated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant speed of 5.0 m/s along7x3z zc-v(4d/ ffpazpb j6r m, the line shown in the figure. What is the magnitude of the particle’s angular mo6bxdffj-( ,zc3mpp4/zr zv7amentum calculated from the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed due South. She applies the brakes quicklw)asg8 qq. p,jy 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,g jq. s)8wqap 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 m ):p6ag ehjaen u1 osc0s;:m0c4gl-yR and 2R. Each sphere is rotating about a fixed axis through a diameter. The rotationa1jh u:l60am:sa)cyno4gsge- e; mcp0l 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 thp all(zz u,*x9e same material. One disk has radius R while the other disk has radius 2R. Both disks are rotating about a fixed axis perpendicular to the disk, through its z(l xpu9,a *zlcenter. 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 6qcjo:m-uem2,r pc z 9hgkx5:constant2g:ec hc:r5jm9 ,qzxop -u 6mk?

  01.27: A spinning ice skater c1:;liqgk;y x san increase his rate of rotation by bringing his arms and free leg closer to his body. How does this procedure affect the skater's rotational mome;lxk; gqy:s1intum and kinetic energy?

  03.32: A figure skater has a moment of inert ep,vzx 1j;:glg +x*km.vq7zsia 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 moment of ine8 kyv8jf4:s gwlqv5h(rtia 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 hnvcx a +1 2 *n;hbv;v+sqe nwl;msh32zorizontal 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 observer measuring frsv a*z2w; b;xlnhcnq ev;+s1 2vh3 +mnom the hole in the table?

  08.40: A point particle of mass m collides with a thin rod pivoted at one end. tep7t8p 1f 6avThe rod has mass M=2m, length L , v e6t7f8ppa1t 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 rotam.q; fa2 h-saating 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 establaq f.s2 ;-mahaished, the disks are spinning at the same rate. What is the angular speed of the disks at equilibrium?