13.47: Which one of the following choices best reprnx kst w)q9z)/q;ik;eesents the magnitude of the angular momentum of the Earth (expressed i);ezq;sk/ )qxkwi 9tn n base MKS units) associated with its rotation about its axis?

  17.37: Which one of the following choices best approximates the e /sw14gs ;kt, dw7wh;axr :jfmagnitude of the Earth’s tw,fhdj skxwwr/sea4; 7g1 ; :angular momentum (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 m/s along 2*5ecra+ y9nyd6 veeh the line shown in the figure. Wh59r6y2 cne* a+eedyhvat is the magnitude of the particle’s angular momentum calculated from the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle dirfd3j, mnwlaoj*ytb,4d; q m4.ected 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 choices best repja q3*.t;dbm,o4ywfj4l m ,dn resents 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 sphere is rotatibk j+-e.cpbw; ng about a fixed axis through a diameter. The rotational kinetic energies;c b-ep+k.bj w 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 has radius R e5v8rjo1a/ ay o */c ut-p1)gib;ryiwwhile the other disk has radius 2R. Both disks are rotating about ayc pat eoib8;v/w i1 5)ru*/yjga -1or 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 ra fun 9gnn7 .rn.55b a3lgok,u,kdj;met for the angular momentum of a system to be constan ok3.b7 rdn a ,5uj.5a kgufln,g;r9nnt?

  01.27: A spinning ice skater canuu r0--7onou4d7 c +nngq: .mqx+snww increase his rate of rotation by bringing his arms and free leg closer to his body. How does this procedure affect then-+7 4guu:n 0.nwq sr7wux+qoomc-d n skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a moment of inertiaqd1 w,bl)q a hx3i.(li 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 hj+eh;5 a. i6i 3k 5jztsnu(zwa 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, rbm.0fqg/(v 88kdw) rj0 szbh on the end of a string, moves in a circle on a horizontal frictionless table as shown. As the string is pulled very slowly through a small hole in the table, which of the following is co.rsmw 8(d8 0fgk/ jhvzr0bb)qrrect for an observer measuring from the hole in the table?

  08.40: A point particle of mass m colliden .0 mmuh, 6k 4uqw9gey4d6*itn6ep hes with a thin rod pivoted at one end. The rod has mass M=2m, length Ly,6unmtnekh 6w94die0e*h mu 4g.p6q , 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 diljcf 3f+k,3// xljnqo,e. ud.nx a6qhsk with mass M and radius R is rotating on a fixed, frictionless platform with constant angular speed ω0 about a fixed axis through its centea.j,j qhkl/qf/ uo.xc6 x +n3e3, fndlr. 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 at equilibrium?