13.47: Which one of the following choices best repr* 7yk7tyw,qip esents the magnitude of the angular momentum of the Earth (expressed in base MKS units) associated with its rotatio 7y*,pkqwy t7in about its axis?

  17.37: Which one of the followin wmwa o4g jtxsp7fw c4a--2dws3*2y;hg choices best approximates the magnitude of the Earth’s angular momentum (expressed in base MKS units) associated with its orbit around the Su-aw;j3p-hw4x s2*dcwy aof4g2 m 7twsn?

  11.40: A 2.0 kg particle travels at a constant speed of 5.0 m/s along the2(k)xhnwd )imsnep-3 line shown in the figure. What is the magnitude of the particle’s angular momentum c np h)k-( mwsxide)n23alculated from the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bxzbyr f xcrsd+:qf:r) l(0x90 icycle 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 slowing to rest from Mary’s point of +ff y rq 0l::s0x)drc9zrx(xbview?

  03.41: Two uniform spheres of c0p, ytfx; .izmass M have radii R and 2R. Each sphere is rotating about a fixed axis through a .f;t c0pxzyi,diameter. The 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 th ov,zoggb8 ka(f.5solhr1 y t(wm,9:w e 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, through its center. Given that the disks have equal kinetic energy, what is the ratio of the angular momentum o9 ar wf.k8 (ozbvs ot,lo,5(wyh1gg:mf the disks $\frac{L_{2R}}{L_R}$

  17.24: What condition must be met for th,.0a dj8:wat8i2wlwh-h g dp9o)vk sde angular momentum of a system to be conhp:kojd98a,)htsv l8ww adg i02 d.w-stant?

  01.27: A spinning ice skater can increase his r 7uqd0h2z j6suhm /.4kvwd e(tate of rotation by bringing his arms and free leg closer to his body. How does this procedure affect the skater's rotational momentum and kinetic s ./k0 t uq7hdwhd46ju2zm(ve energy?

  03.32: A figure skater has a moment of inertia8tkj orw9-j r7g6f j(o 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 ineleu 26(jc uw y2a9xg-krtia 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 e/)0*ew :afssf5b5 pf ie5i:tre,cz9 alxgc*hnd of 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, whiaefr if bxs:cf z:/gs)le,95hpet0wci5 *a* 5ch of the following is correct for an observer measuring from the hole in the table?

  08.40: A point particle of mass m collides with a thin rod pivoted qmr 1 0ku 8buyt:l0.tqat one end. The rod has mass M=2m, length L , and 8 b:ml0t yk0uq.utq1rmoment 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, solgy 2,ldeon -.wid disk with 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 disks line up. When equilibrium is established, the disks are spinning at the same rate. What is the angular speed of the diyle o ,gd2-.wnsks at equilibrium?