13.47: Which one of the follow, u a8p( rso7l*g9qj5zfd(nmving choices best represents the magnitude of the angular momentum of the Earth (expressed in base MKS units) associated *n9s prvo7dl(8jgqfuza5, (mwith its rotation about its axis?

  17.37: Which one of the following/xzul7x g .m53r d it.vhkm7 ;al.nk9e choices best approximates the magnitude of the Earth’s angular momen 7ih./nrm 5 .axlukkl vexg379 m;.ztdtum (expressed in base MKS units) associated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constan+uh0)n x4fqlpqjy 5g 0t speed of 5.0 m/s along the line shown in the figure. What is the magnitude of the particle’s angular momentum calculated from the ori0lfupqngy0hqj) 5 +4xgin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle direct(5 7k0vppqoi 5-z xp0fz kxfn*ed due South. She applies the brakes quickly bringing the bicycle to rest with the wheels rolling without slipping on thxi*k7v fpq5(0z-x5 k fp 0oznpe 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 2R. nlgjur +m+k-k l81,oeEach sphere is rotating about a fixed axis through a diameter. The rotational kinetic energ ,e1lrul+o -mj +kgnk8ies 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 iv8e bsq:/j:cyna 91c6s ur9qsame 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,ncvus1qe c/6rj8iya ::9s9qb 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 the6mol3bm 9k f1d angular momentum of a system to be constantm1okf 3mb 96ld?

  01.27: A spinning ice skater can ;6*mbbk-k1 n*o0x0tc ik zyev increase his rate of rotation by bringing his arms and free ko1bykbi6; m0c*0z-*xev tnkleg closer to 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 g2sl z83* wehgof $5.0 kg.m{2}$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 ml7.eopub7o.t z l *prvy949rhas 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 of a string, move*o rvr5bin .y 6k9ci tzhwr)jfkq586a+h7e8 ks in a circle on a horizontal frictionless table as shown. As the string is pulled very r *ni.kwjzert6oq kkfi7a8h8)9 + b5 hyv5rc6 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 mpggj d ,s fo8z-h0ahc w5e.deqge8;74 collides with a thin rod pivoted at one end. The rod has mass M=2m, length L , and moment of inertw.q7h8d,o af4c ehe;z sgj8g50-epgd ia $I=\frac{1}{3}ML^{2}$ . 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 rotatidghbvy,8- mh *ng on a fixed, frictionless platform with con8 *hvb,md-hgystant 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 the same rate. What is the angular speed of the disks at equilibrium?