13.47: Which one of the following choices best represents the magn2e;vn)f: 3)ehun oldnv n +;vritude of the angular momentum of the Earth (expressed in base MKS units) associated with its rotation about ierh))un3 +vnn;2nevl ovf :;d ts axis?

  17.37: Which one of the following choices best approximates the magnitude of ;-p1;4w *muesiab 1eppsv ( ;z p*lzaythe Earth’s angular momentum (expressed in base MKS units) associated with its orbit around the Su y*z (m ;b-pl*ea41;uwspp 1aie ;vzpsn?

  11.40: A 2.0 kg part jd6/b q-w*bduicle travels at a constant speed of 5.0 m/s along the line shown in the figure. What is the magnitude of the particle’s angular mo -*d/6qwbdjubmentum calculated from the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her4nd e*lp/mpq2 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 angul4n qpe2d/lpm *ar acceleration of the bicycle’s front wheel while it is slowing to rest from Mary’s point of view?

  03.41: Two uniform spherbz eg3-telg)n: ;fm-res of mass M have radii R and 2R. Each sphere is rotating about a fixed axis through a diameter. The rotational kinetic energies of theg-tbnf)-r3z; e :mg le 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. One disk has radius Rrz mr3dlmna*h iy8les06 t. u/45+yok 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 equ8l3m tur6l kzeysmh y+n4d.r*/50aoial kinetic energy, what is the ratio of the angular momentum of the disks $\frac{L_{2R}}{L_R}$

  17.24: What condition must bepakqdvx1 )7bat/l, 5l met for the angular momentum of a system to be constant7p 5/alav1tx)klq, db?

  01.27: A spinning ice skater can increase his rate of rotation by bringing hivwbry1s ub6u::m3f/1c 0if czs arms and free leg closer to his body. How does this proceduf1uwrc6/zb s: vb1 ciuf: 0m3yre affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater hasf..swsl;hn3 ms x( (ei 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 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 inertia o;;id9 r7zpla 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 in a circle on a horizond-m vf4t/l h(iq+b7i n5t vsi*tal frictionless table as shown. As the string is pulled very slowly through a small hole in the tvil(i 47 b-dthqf*v5+ im /sntable, which of the following is correct for an observer measuring from the hole in the table?

  08.40: A point particle ,1yqt59nzbxygw af73 u3h2pzof mass m collides with a thin rod pivoted at one end. The rod has utp3gy71f z5 y3hb, 2 wz9xqnamass M=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, i255mfhrcx* (2b/ jlfnhyzqs p7z c0 a fixed, frictionless platform with constant angular speed ωqzx h7m5(02prl25ci cbhs yfz fjn*,/0 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?