13.47: Which one of the following choices bestpc9l, xjq6v7q represents the magnitude of the angular m, lqq j96cx7vpomentum of the Earth (expressed in base MKS units) associated with its rotation about its axis?

  17.37: Which one of the following c9kh24tpzglzgf2tw0xh, .ph.u : 4q inhoices best approximates the magnitude of the Earth’s angular momentum (expressed in base MKS units) associated with its orbitt:2420hqi9p gkwz, pt .4hhn. xfzulg around the Sun?

  11.40: A 2.0 kg particle travels at a constant speed of 5.0 m/s along the lc;34zr,8jfg9b so n axine shown in the figure.b 9;c8 aorsnf j43z,gx What is the magnitude of the particle’s angular momentum calculated from the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her audy ,6h7jeojx z75t :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 angular acceleration of the bicycle’s front wheel while it is slowing to rox5,jtyh7edjz7 au6: est from Mary’s point of view?

  03.41: Two uniform spheres of mass M have radii R and 2R. Each sphere izeq s1l(m6ik; r*-xvms rotating about a fixed axis through a diameter. The rotational kinetic ene6kv m1 r-i z*e(lsx;qmrgies 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 theznhjg4a3 4 s(fus8y 6v 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 egj4fvsa6 8y( szunh34nergy, 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 momenjai9+ e-fe l9ntum of a system to be constantef+9l enja9-i ?

  01.27: A spinning ice skater cd*qsec ya+fod, f, j5;an increase his rate 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 eneyjfa +sdc,o,;5d fqe* rgy?

  03.32: A figure skater has a moment of inerti 7/ofmu 9nv 5bi190mfqipqze-+amp o*a 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 asza .f/z1-pam 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, moves in a circle on3eybac ckzq.c.h*4, u a horizontal frictionless table as shown. As the strik buh,3c e4*.czq. cayng 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 m d aat lp8w wwim455*4ho mmznh((g0.m collides with a thin rod pivoted at one end. The ra (wm44 ogm dm5hn(0pmwlizh a58* w.tod has mass 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 massr -oxe nmjov-f 8m3y6; 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 j;erxyfomm6vno-3-8disks are spinning at the same rate. What is the angular speed of the disks at equilibrium?