13.47: Which one of the following yjyo r1) 1sfi3 choices best represents the magnitude of the angular momentum of the Earth (expressed in base MKS units) associatedr1y1o3i)fyj s with its rotation about its axis?

  17.37: Which one of the following choices best approximates the magnitlcce0cw9f,40 nil p7cude of the Earth’s angular momentum (expressed in base MKS units) associlnccpfci ec,w0470l9ated with its orbit around the Sun?

  11.40: A 2.0 kg particle traveukhj6ol 3ni w y5,rlo5/zr z6(ls at a constant speed of 5.0 m/s along the line shown in the figure. What is the magnituderk(oz5l 3u665l/, wihzjno ry of the particle’s angular momentum calculated from the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed due South. She applies the brakes quickalolq5dlx.;/+w vk0 p+;lf z mly 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 frm;a/powk+5;zqll0 + fl.xdvl om Mary’s point of view?

  03.41: Two uniform spheres of mass M have radii R and 2R. Each sp/ gcg3 c iafo ug)+ts2l*rxp02here is rotating/2lfpgrsg 20uc oxt g a3ic+)* about a fixed axis through a diameter. 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 disk hawj, xay8.t;yoxk m ncdezt- bs:r/,.)s radius R while the other disk has radius 2R. Both disks are rotating about a fixed axis perpendiy,xd t c,etx- brkw:a)js ;z8./nmy .ocular 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 a ,i0p(6 rm,tlv4oswlof a system to be constant?,4opwrma v s0 ll6i,(t

  01.27: A spinning ice skater can increase his ksuw69gk- hryac-es14 n)p,grate of rotation by bringing his arms and free leg closer to scug-ne6-haksw)ykgr,1 4p9 his body. How does this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a moment of in; wnjb88 ax+qr4a *wphertia 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 mom(6 o3mxbt iydzw/iz,,g/)1vu /lkd shent 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 o f6f 1-bnf6z kb u3+(ido;qbbcf a string, moves in a circle on a horizontal frictionless table as shownn;z (d +bbqb6b6f-3ku 1foicf . As 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 end ti8ghpo bk3fopbvt0k0d2w(,9q7nc3 . The rod has mass M=2m, length L , a,k3hg n tb87 i9ofv( ktc0p03bopw2qdnd 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 rotj2:ms *v +glum sd4dvq o t,y9h.61uuuating 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 angular speed of the disks 1j,6m o dvvqy+42usudl* u9msught:. at equilibrium?