13.47: Which one of the2a)o539e gkj:rinsho following choices best represents the magnitude of the angular momentum of the Earth (expressed in base MKSon :e)j3gisa29 rokh 5 units) associated with its rotation about its axis?

  17.37: Which one of the following choicz9d4 td0hsb(6jhk3t2 v; pg lues best approximates the magnitude of the Earth’s angular momentum (expressed in base MKSp ht4t us lkb d3z9v6;0hjd(g2 units) associated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant speed of 5.0 m/if yczb.5fw ck6i 824ls along the line shown in the figure. What is the magnitude of the particle’s angular momentum b8l.4fcw kyciz2fi65 calculated from the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed due South. She1u 74zf1bq yjg 2wv9ru applies the brakes 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 acceleration of the bicycle’s front wheel while it is slowing wrzu f194gu 1qvy b27jto rest from Mary’s point of view?

  03.41: Two uniform spheres of mass M have radii Rn*da 3 (uf4eca and 2R. Each sphere is rotating about a fixed axis through a diameter. The rotational kinetic energies of the spha(d3ua*n4f eceres 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 materiadt+w adx-+n o7p)ir7gl. One 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 di7a7wxti -dn d+p)rgo+sks 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 h56so,*8hb2m*mvuqh ri fy9 h system to be constansrmo iu yq2hh 5, hm*f6hv8*b9t?

  01.27: A spinning ice skater can increase his rate of rotation by bring7lm igpwpk(-m- jvjcsi/+/nqj iz)u ,. w wi(+ing his arms and free leg closer to his body. Ho wp/jj)s(z +p ./mi 7il-, q( -iu+wwkigmvjncw does this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a moment of rlhx4 oy78dfz 72f3b2jso;f l 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 ine/u(0uxph iruq:;9 cxrqfsk ;;rtia 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 xe 5 ek +uye6.afwoql 2j5+k5zin a circle on a horizontal frictionless tablexja5e+5e5kwk+6 q2 oy. zufle as shown. As the string is pulled very slowly 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 l1g -86 canm1d +i ver+ui9foam collides with a thin rod pivoted at one end. The rod has mass M=2m, length L , and moment of io961n-+glrdeu1 +ac fai8 ivmnertia $I=\frac{1}{3}ML^{2}$ . 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 o uq0cyl(yfs r3i//e0b n 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 disks line up. When equilibrium is esl0/ sbqu (r3 eyyc0fi/tablished, the disks are spinning at the same rate. What is the angular speed of the disks at equilibrium?