13.47: Which one o :9w9*xc1mn+xnjc wcu8a(ipxf the following choices best represents the magnitude of the angular momentum of the Earth (expressed in m8ci*:caxp(x1u x + 9jwnwnc9base MKS units) associated with its rotation about its axis?

  17.37: Which one of the following choices best approximates the zwtb-d1;-5iu9i;q+. f v ws/ sgkzqedmagnitude of the Earts- wwd+1e.svfuz g ;zkd qt/-ib5;9qih’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 constant n , nw(eaxn pu;da6s8r 5.xpi0speed 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 origin( unit:n,s5da prxep(; 6 an.in0xuw 8 $kg.m^{2}/s$)?

  11.35: Mary rides her bicycleyl :9k 1kv3ewt directed due South. She applies the brakes quickly bringing the bicycle to rest with the wheels ro t3ewky:1l9vk lling 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 from Mary’s point of view?

  03.41: Two uniform spheres of mass M have radii ka3abm7 )x0(n)htpcp* 14a msuob 4wo R and 2R. Each sphere is rotating about b)a t)7axp smu4340khwp mno*ab 1o(ca 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 has radiuqn 1 e3)cfr*ol*ejf) ts R while the otrof3t l * n*fj)1eeqc)her 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 the angular momentum o2pff 2io l3u/u:;8 e.kmwvsz tf a system to be constantwm.:tpukf22/i3f levo ;8uz s?

  01.27: A spinning ice skater can increase his rate of rotati 4 0m1m)wd cfo6s/s.bacy g0inon by bringing his arms and free leg closer to his body. How does this procedure affect the skater's rotational m. 1d6s f mo0cn0s)mw/agybi4 comentum and kinetic energy?

  03.32: A figure skater hl;rxc 0e jc0gmxwn;,9as 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 skater nas xe 69l(vqo 8yyxqo-rd,.;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 end opn:*s4vf:cctm c qi9 0f a string, moves in a circle on a horizontal frictionless table as shown. As the string is pulled very slowly tnc f*i :tcs 40m:qvpc9hrough 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 ,ejnrd :covk9e);oi1pivoted at one end. Thvre ):1 kc9o;jen,di oe 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 mfufxl)zkp *)05;u iyand radius R is rotating on a fixed, frictionless platform with constant angular speed ω0 about a fixed axis through itl*i;uzf f0u )5xkyp)ms 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 at equilibrium?