13.47: Which one of the following choices best represents the s nu xnu-uxh* 6inkk,.2 f/5tl magnitude of the angular momentum of the Earth (expressed in base MKS units) associated w6 ,/hu*u. kux25snx-nn ftkl iith its rotation about its axis?

  17.37: Which one of the following choices besti .k)r)vcrn ly1 7efqh0fs)u l(d0s ugtf0 )/c approximates the magnitude of the Earth’s angular mo /l0)7e vgd 0kqffisu ))rclrsfy.u ( )0cht1nmentum (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 zxpjrx q* n5-+m/s along the line shown in the figure. *+qrxzn-pj5x What is the magnitude 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 quick1vv f)3zl jhgb : bt9sct jle:9s3j1p-ly bringing the bicycle to rest with the wheels rolling without slipping on the ground. Which one of the fce- 9 :svf31jph gl :jtb st13lbz)v9jollowing 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 of view?

  03.41: Two uniform spheres os,5zdqgzv4l.i n2f c -j- 7s5p4otlpkf mass M have radii R and 2R. Each sphere is rotating about a fixed axis through a diameter, k2- 5cjlo sp54n7s .dtliv4zpfzqg-. 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 disks801n stphnuq: are made of the 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 center. Given that the disks have equal kinetic energy, whtn0h n1up q8:sat 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 mome m6 g)+sc(dbjentum of a system to be constb cmj6(es)+gdant?

  01.27: A spinning ice skater can in6;v4f7*j xfi2g9gjfr/uv u sbcrease his rate of rotation by bringing his arms and free leg closer to his body. How does this procedure affect the skater's rotational momu9 xvijfjg46b; u*27/ rffvgsentum and kinetic energy?

  03.32: A figure skater hd hr,xoidvb8 9 ;+5+o gacqw:ias a 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 change in the skater's angular momentum as she brings her arms in tight to her body?

  0.33: A figure skatero 31hsu*x(id j has a 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 endd2a0r )oom e4v jt 5aup.42etm of a string, moves in a circle on a horizontal frictionless tam 44o2pjuet mov)t2 ada0.5er ble 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 the table?

  08.40: A point particle of mass m collides with a thin rod pivoted at one end. Tm+ q7z,4noeryhy+4eo qr 7,zmne rod has mass 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 radi3r r;wums x. ix0:dt,tus R is rotating 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 ;tr.0:d ui wx,r3xtms same rate. What is the angular speed of the disks at equilibrium?