13.47: Which one of the following choices best represents the magnitude a5-z0:nys ynkl 8 /yp6uw7z px of the angulaulpy5:8 x0w-y7s /az6nypzn kr momentum of the Earth (expressed in base MKS units) associated with its rotation about its axis?

  17.37: Which one of the following choices best approximates thet/k ywlz wu0)7 kv0gl5 magnitude of the Earth’s a0kvu0kz5w 7 /ytgl )wlngular momentum (expressed in base MKS units) associated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels (phdc 10 8b xhro8;zpd9/v2lh-8uzov9zhhlb at a constant speed of 5.0 m/s along the line shown in the figure. What is td0 xh-vh8 ph(9b8l/uocz rbd9 zoh1pv;l2 h8 zhe 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 applies cikjo t3 q61, j xx;68dgqt98u,epmcxthe brakes quickly bringing the bicycle to rest with the wheels1 kit,m, 3x9jg6cx8e86 qcpdo xqtj ;u 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 view?

  03.41: Two uniform spheres of mass M have radiqyw40-gd)+ hs(yfn wpi R and 2R. Each sphere is rotating about a fix+f0 q wyghn)ys-p w(d4ed axis through a 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 the same material. One disk has radius R whilq1zqqqfgij4 79lh f34 e the other disk has radius 2R. Both disks are rqzlqh 7j qif9g3414 qfotating 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 angular momentum of a sd.y r-, hg nmpsur6g(7bsne(o2 t.9fcystem to be conet.6ym (9.n obhcss,dunp(rr ggf-7 2stant?

  01.27: A spinning ice skater can increase his rate of rotation ow5t fobl38 j-by bringing his arms and free leg closer to his body. How does this procedure affeofwo8b- 53j tlct the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a momenqchif9pji d kg5-x z b52:vb:;t 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 mo 1n9) cgqh7kwgz p*vq*ment 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, moves in fhz8yhlf1b*k)e ;n.f 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 yhl)b; f81. hzfek *fnthe table?

  08.40: A point particle of mass m collides with a thin rod pivoted at onec4fcc74t. zhr end. The rod has mass M=2m, length L , and moment of inertia zf4ct h47rc.c$I=\frac{1}{3}ML^{2}$ . 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 disznvz - sw2p,cv6o1h7i k 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 spinov-,v7cnzs 16 zpwih2ning at the same rate. What is the angular speed of the disks at equilibrium?