13.47: Which one ozt-jb s4r 8u9t,ul*m tf the following choices best represents the magnitude of the angular momentum of the Earth (expressed in base MKS units) associated with itbujs9m,zut8t*- r4 tl s rotation about its axis?

  17.37: Which one of the following choices best ed z gkynbbfmvt4 bz(2 1t a15vv(4:jk+s++r dapproximates the magnitude of the Ear+4f(z 1kg(+ demk1trzsb yvav4d5j:t bv+nb 2th’s angular momentum (expressed in base MKS units) associated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a co;s4rl5fiho rahjt 6* 4nstant speed of 5.0 m/s along the line shown in the figure. What is the magnitude of the particle’s angular momentum calculated from the orig;j4lh 5i* a4rosrht6f in( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bb3zd u.bi p.vry4j7lxg9;u lb x 7k/l1icycle directed due South. She applies the brakes quickly bringing the bicycle to rest with the wheels rolling without slipping on the ground. Which one of the following choice7kxg r u4xy; p.dl1bbbjvi7l z./3l9us 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 of mass M have radii R and 2R. Each s7f-.9w9 6ge vpspl xcxphere is rotating about a fixed axis through a diameter. The rotational kinetic energies of the spheres are identical. Whapx7gfl xs96v .-w9ec pt 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 e5qxm28 . vxvd1y dhtmn k8+t/of the same material. One disk has radius R while the other disk hasmq/ t8hdkv x d.+1 mtxv2ey85n 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+o is er:(ibm; met for the angular momentum of a system to be constanie(+rm s;o:bi t?

  01.27: A spinning ice skater c0q+k; du9dc;d 5d ioizan 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 momentum and kinetik0cud +9dd iid;5qzo;c energy?

  03.32: A figure skater has a mrkldoz-m8d +)oment 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 moment of iner sa ht+kwq;bcy-4 uscf5oyv159xu9h3u39 it etia 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 horizontal exj;x.m hi zv1) kvt9,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 t . ,i9vz)ketxvhjm x;1he hole in the table?

  08.40: A point particle of mass m collides with a thin rod e 2zr)xj1p7va1. z3j vxq/p6g x4 zwbgpivoted at one end. The rod has mass M=2m, length L , agexg 621 1zxv3) xbjjzapq4z7.wp v r/nd 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 r;;8lqez k0;(hfq gtzxadius 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 eql(;t8xhg z fk0;zq;same rate. What is the angular speed of the disks at equilibrium?