13.47: Which one of the followxzq: r.df v0c(ing choices best represents the magnitude of the angular momentum of the Ear:0f( .rd vqzxcth (expressed in base MKS units) associated with its rotation about its axis?

  17.37: Which one of the following choices best approximates the magn vln*h,+j k;wbitude of the Earth’s angular momentum (expressed in base MKS units) assokh, ljv*n +;bwciated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant speed ,f-sqc-e/p u eof 5.0 m/s along the line shown in,-eesq cu-/fp the figure. What is 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 brakes quic on) lbqa3 tyy(k6u(o(kly bringing the bicycle to rest with the wheels rolling without slippintyko b6 o( )(luaqy3(ng 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 2R7bbfpxg8i */p . Each sphere is rotating about a fixed axis through a diameter. The ig *b8bf7/xpp 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 38 liyej-k 37hkqryv2are made of the same material. One disk has radius R while the other disk has radius 2h3lkei y jy32 8q7vr-kR. 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. r-.ivr 1el.g5tfenwc *z hh+ the angular momentum of a system to be consta i5zwf*v- g1ner.l. hrce+ t.hnt?

  01.27: A spinning ice skater can increase his rate of rotjoda8g)9ul- clx8ma9 q0+da 56yno gcation by bringing his arms and free leg cl lolqg 85jcnd06 moyaaxuc9)g -98d a+oser to his body. How does this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a ly2jk9 3fq6-aprvg+;j: uhobd gx2 )tmoment 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 inertiavdpv 2ga l/:r: 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 c 81fa1o q3,tgt8oskrb3+d azv ircle 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 correct for an observoazk 8q,83aof+gtsdv31 tr1b er measuring from the hole in the table?

  08.40: A point particle of mass m collides24yjdd-dc:,3thxyy uq q z+6bn5 bp1jf.* pys with a thin rod pivoted at one end. The rod has mass M=2m,*ydh5py.bbx2 1 d: j36jy4-,+ pdqyts zucfnq 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 wgvnqfqg9ck,6 * a /q/gith mass M and radius 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 divf *q/gkanqc/ ,96qggsks line up. When equilibrium is established, the disks are spinning at the same rate. What is the angular speed of the disks at equilibrium?