13.47: Which one of the following choices best represents t3me yq pm2jgz;mc9.) fhe magnitude of the angular momentum of the Earth (expressed in base MK9j3)zpmyf;qg c .2 mmeS units) associated with its rotation about its axis?

  17.37: Which one of the followi7l h: -ss46 ps2dngmwlng choices best approximates the magnitude of the Earth’s angular mo:phmsdlg-674 lnw2 ssmentum (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 vv+r4e efbo,n 7t2n7 yalong the line shown in the figure. What is the magnitude oeev n ftnvoy,r7 +27b4f 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 thezq8r*m/ 1m gbkq qc*cjwn)0 )o brakes quickly bringing the bicycle to rest with the wheels rolling without sli jgq1kmc0)8/mo*wq*c zb r)nqpping 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 R and 2R. Each sphere iw mewjlq; *)gk .hm:zga9w/ ;ms rotating about a fixed axis through a diameter. The rotational kinetic energies of the spheres are identical. What is the ratmzml)k *ejag:; w9. h/mqw ;wgio
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 sam4jcux id j:rhczi).q9b 8ib 4,e material. One disk has radius R while the other disk has rad dbi8,hi:jq)9j.i4ur 4cb xc zius 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 of a system to bnl0ui m475iog nerm20 e constant mgn 00i4erom5ul n2i7?

  01.27: A spinning ice occwrq.a j 62 +p022xjzf0s kyskater can increase his rate of rotation by bringing his arms and free leg closer to his body. How does this procezkc2 r +2jp0oxwc0 ya. s2f6jqdure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater hasuf p.co4 odsl* y.xu)3 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 has a moment of inertia ofqn).i dmy43, .v(uvuytefhx rc*x)0 x $5.0 kg.m^{2}$ 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 amu(q + ) ohshu 4)au*z+br59kmp sz:vm string, moves in a circle on a horizontal frictionless table as shown. As the string is pulled very slq5u *o )s9 vz4 ar (p+s)+uumzmkmhbh:owly 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 wittgknxt qk8 n zt-y5-70h a thin rod pivoted at one end. The rod has m5-x -tnkyq8zttg7k0 nass 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, so))a4by9i/zsmyb f /tblid disk with mass M and radius R is rotating on a fixed, frictionless platform with constant angular b/y) yam 4/bfz9 itsb)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 same rate. What is the angular speed of the disks at equilibrium?