13.47: Which one of t .-jxlw kd7s6jhe following choices best represents the magnitude of the anguladj 6kw7lsj-.x r 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 approxima 4:3yu w4h*q wp+8fw;ehfj dgvtes the magnitude of the Earth’s angular momentum (expressed in base MKS units) assgw4pwf3hjd:*qeh;8 4 v f +wuyociated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant speed of 5.0 m/s along the wf r8fi1t8t.e3 yae1we.o)9gpi4o qt line shown in the figpry8et .i)we1t 9f38i 1qo 4ef.gotw aure. 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 appla a8 )hsj;q jl.e62 bft*ujis,ies the brakes quickly bringing the bicycle to*jja6qfu,hea 8s ij);2bt.sl rest with the wheels rolling 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 nks h+h*s/dl -5ep(wyhave radii R and 2R. Each sphere is rotating about a fixed axis through a diameter. T/e*ndspwlh yk( +-5shhe 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 ofmu 2tn wb,v wzj6x7(3r the same material. One disk has radius R while the other disk has radius 2R. Both disks are rotating about a fixed axis perpendicular to the disk, throt672jx(,mu bzw3wr nvugh 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 be nz811hgpx*u +n 7-l wbwz:fx 0rlms.:ehyu9y conm sfbhze: lnu-*:y wgwu+p0 97znh81x l1.yrxstant?

  01.27: A spinning ice skater can increase his rate of1i44k pgcjak - rotation by bringing his arms and free leg closer to his bodygkp- 41j ika4c. How does this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a moment of io c a5;tjk2.oask m75knertia 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 mm51al8kshzo,n. j c v043siyaoment 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 of a string, moves izccu kyv185.d1 *cb; nibioot yn2h;7n 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 follo knovcdn1h1o8i2 c*cb ;y;yzibt7 5.u wing is correct for an observer measuring from the hole in the table?

  08.40: A point particle of mass m collides with a thin ro n2t/pkoyzg g3y k1xxg 9x2d*z(9 h(ged pivoted at one end. The rod has mass M=y2 gn9 d*oxtk(13gp9gy/(gzk ez xh2x 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 and radius R is rotating on a fix6w k+jlr1ler 0njk hsg6v+hni)*( h(z ed, 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 disks line up. When equilibrium is established, the disks are spinning at tn 6hkks+1n) *0 r+l gjl6zvrhwhi (ej(he same rate. What is the angular speed of the disks at equilibrium?