13.47: Which one of the follow r,cmpp 1q*arv;s)h+a ing choices best represents the magnitude of the angular momentumm* qh;a), 1ps+vcparr of the Earth (expressed in base MKS units) associated with its rotation about its axis?

  17.37: Which one of the follow j-06 c8xzdxtping choices best approximates the magnitude of the Earth’s angular momentum (z6p x 80jxdt-cexpressed in base MKS units) associated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant n)8q.u6n m/ trfmc , o h-k*xtu+:mf+2miopht speed of 5.0 m/s along the line shown in u8u:x,rtiftnoom6n*h fp)+h t+.m km 2cq /m-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 her bicycle directed due South. She jexpj foye j 59wkwg* hzr/:n(0d+8x;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 0ne;wkj*xdoyp w+5hr:egx/j j 9z (8f 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 4dwn0me7hz- r+ fia4iof mass M have radii R and 2R. Each sphere is rotating about a fixed axis through a diameter. The rotational kinetic energies of the spheres are identical. What is the rae wrn mdz0h44fii a+-7tio
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 l:45kma:ve-ct,xb *0 u byzex9 drf51 )w qwmydisk has radius R while the other disk has radius 2R. Both disks 59*d :x ey0)b,yxmaumk4 1rvc:z5 bqtwfwl - eare 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 the angum/kv td bo (l*;)r7dk:84dsyt,oafgular momentum of a system to be constant?ksvo artyk* ,g) m 7/8b(oddfutd;l:4

  01.27: A spinning ice skater can increase his rate of rotation by bringing hi, yari e411( qe :2efcwg0eflks arms and free leg closer to his iwe2e,lk:e(rf4qy0 1c 1fg aebody. How does this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a moment 7xg gc8upk8* iof 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 l1xk9p*5rc0 mk wt-5dk 9goeqof $5.0 kg.m^{2}$ 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 o7t8nh p7fcfw0n a horizontal frictionless ta8t7pff c hn70wble 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 mi i2jo5hw;d/ds8 /z hh collides with a thin rod pivoted at one end. The rod has mass M=2m, length L , and mi2ij5h/o;h 8wdsd/ zh oment 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 dis k:7o ul/jfw3is 52-m*stwd a8,t yqabk with mass M and radius R is rotating on a fixed, frictionless platform with constant angular speed -5*tlf/b 2kwm tqsyiua,w 8:asdoj37 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?