13.47: Which one of the following choices best represents the mqorzf0p*0fc1ve i2 ,bagnitude of the angular momentum of the Earth (expressed in base MKS units) associatebpe2,fiqc*vr01f 0ozd with its rotation about its axis?

  17.37: Which one of the following choicebvrg;5e; 4rujk6*;sv mrv 3e ss best approximates the magnitude of the Earth’s angular momentum (expressed in base MKS units) assojgvr be6rk;s4e ; v35*vmrs;uciated 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 l,v.)pq ue cv0zine showvzp)0.u, v ceqn in 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 herje 1w m+cdehnh37 o7w1 bicycle directed due South. She 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 ne3mw7w 1cdo1j+ 7hhe slowing to rest from Mary’s point of view?

  03.41: Two uniform spheres of mass M have radii R and 2R. Each s*(is/2 ks phruphere is rotating about a fixed axis through a diameter. rh*s 2i(ukp/ sThe 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. O:gh( .oswpp1 qne disk has radius R whil: g(q1hpwsop. e 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, what is the ratio of the angular momentum of the disks $\frac{L_{2R}}{L_R}$

  17.24: What condition must be met for thehjqjybo8 s:4shj41c / angular momentum of a system to be const41:sojbyj h/qhc8j 4 sant?

  01.27: A spinning ice c-+g fkprf:8jv/h7 dd skater can increase his rate of rotation by bringing his arms and free leg closer to his body. How does thg/p hf vkjcd-d r:+f87is procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a moment 6h,mac( qmo z*oyg qa; /:ggw8of 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.axa1je ,csvpqk*t* . has 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 skater's angular acceleration as her arms are moved in during the three second interval?

  06.23: An object m, on the end ofb ysm w1c,n+9o/;xe ax a string, moves in 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 following is correct for an observer measuring from the hole in the tabb,yw/ 19; nm+xoxe acsle?

  08.40: A point particle sr m;uagoi+:x: hr -q1of mass m collides with a thin rod pivoted at one end. The rod has mass M+usq:1omhxg-r a ir ;:=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 radiuxdvv/ mqx(8jy pa ,g*,s 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 disks line up. When equilibri( mx,,qva/ gv8 pxjdy*um is established, the disks are spinning at the same rate. What is the angular speed of the disks at equilibrium?