13.47: Which one of the following choices best represents therlhi kwa3+ *b/ magnitude of the bih/+lw ka*3rangular momentum of the Earth (expressed in base MKS units) associated with its rotation about its axis?

  17.37: Which one of the following choices best/ftr7m*qyb 0 zcn :,jnn 8es/e approximates the magnitude of the Earth’s angular mome,/c: nn7fy8*mjb 0t/qez s nrentum (expressed in 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 mvv kambruyng g,)xv8(. )7gj//s along the line shown in the figure. What is the magnitude of th/7.vgv)n y(kg)ugjra,x8 vmbe 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 fjz/pm6 re6 p mkq.6f(quickly bringing the bicycle to rest with the wheels rolling without slipping on the ground. Which one of the following choices best refrmj6zk6m fq6(e/. pppresents 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 a.3thfggr)t7olv* 4+eoi ed3mnd 2R. Each sphere is rotating about a fixed axis through a diameter. The rotational kinetic energies of the spheres are identical. What is hv4 mtte l7 +3rdegiog*fo ).3the 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 has radiu9vr1 x;zihv-b vx79g nlnb 2g.s R whilv r g9n-2x vbxhzb 71;.ng9vlie the other disk has radius 2R. Both disks 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 be met for tt/y; n5cgk5lxc(,py: ee gr91 1cw rashe angular momentum of a system to be conyr;l1wp (engae r/sk1gcx5y: c9c5 t,stant?

  01.27: A spinning ice skater can increase his ratxrs7xyf4adna 5my 3*2e of rotation by bringing his arms ymxany* 574 ar3 2sdfxand free leg closer to his body. How does this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a moment of inertiw7c7h;*v uzmt ukl+3ta 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 2 vheiuy0b*0no/pfk g4n a+e :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 horizont7:i9s ,nlyrvihzoa :6h h,/ktal 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 from the hole in:zi , n,6hya/sohl vik t:97hr the table?

  08.40: A point particle of mass m collides with a thin rod pimy;4sf.x-8cosm fs , vvoted at one end. The rod has mamss .cf;v , 8fsm4yxo-ss M=2m, length L , 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 a fix1snuc/ c.rf z,h+0vg:xb pf)ted, frictionless platform with constant angular speed ω0 about a fixed axis through its center. A second uniform solid disk of mass 2M and radix+0t u.fn:/,zb vfp rcghsc )1us 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?