13.47: Which one of the following choices best represents thb0ns) 0tao6s-kzvc *m1 lqi /ye magnitude of sy-v0 iz6 1ks*mt/nqbo0cl )a the angular momentum of the Earth (expressed in base MKS units) associated with its rotation about its axis?

  17.37: Which one of the following choices best appne; n oj8,lue;)t8wbproximates the magnitude of the Earth’nt;;jeou)8 e pwbln, 8s angular momentum (expressed in base MKS units) associated with its orbit around the Sun?

  11.40: A 2.0 kg particla2nr4 o52xpf2 4wn 6+oa tdquxe travels at a constant speed of 5.0 m/s along the line shown in the figure. What ifo2 r4upta6n xoxwn452 aq+2ds 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 bra;n4 qyak-am r8c.a (xjkes quickly bringing the bicycle to rest with the wheels rolling without slipping on the ground. Which one of the following choices best represents the direction of the angular accek- 8n4c a q.ar;jxa(ymleration of the bicycle’s front wheel while it is slowing to rest from Mary’s point of view?

  03.41: Two uniform sp9o9toz,p w ud(heres of mass M have radii R and 2R. Each sphere is rotating about a fi(u9wp z9o,tdoxed 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. Onelj)ng;i(v.o :uw5g xb 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, wha;bwx 5l :n.ijggu)(vo t is the ratio of the angular momentum of the disks $\frac{L_{2R}}{L_R}$

  17.24: What condition must be met fo.eh ota/k 4yb( ry wdvf/r5f:v24*kwvr the angular momentum of a system to be constant?vyf.w5/4(/vrodfwk ar:2vhb t ey k *4

  01.27: A spinning ice skater can ink6c-pt r 5igk-crease his rate of rotation by bringing his arms and free leg closer toig 65k t-p-krc his body. How does this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a moment of inertia ofwomyn ejjrh/6wgc njz .5y2) n *cr/ n,o831ci $5.0 kg.m{2}$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 of97o/s;wya5rd89gnn ( b/bqccvr*lt r 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 of a string, moves qeq r0cfilp x-i4:7(q in a circle on a horizontal frictionless table as shown. As the string is pulled very slowly through a sm-c4qq7r : fepi x0(qliall 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 p3vr01s:u5shu gmqf q0 :de.9wvsj/v ) j ks9sthin rod pivoted at one end. The rod has mass M=2m, length L , and moment of inertia s 0:js:ukj0vsmwvfs3qe1rq 5 gp s v/9uh9)d. $I=\frac{1}{3}ML^{2}$ . 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 radius R is rotr8urpr5acb00aa - 4jgating on a fixed, frictionless platform with constant angular speed ω0 about a fixed axis through its center. A second uniform solid disk of mass a 8ag5c4- br raj0pur02M 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?