13.47: Which one of the following choices best repw/rw .:m4 z4sb kmsf2hresents the magnitude of the angular momentum of the Earth (expressed in b m.sz4whw4mfr:b /2 ksase MKS units) associated with its rotation about its axis?

  17.37: Which one of the following choices best approximatesl)x + h0.dnpn8tjm;7ob5dw1emvqbl : the magnitude of the q l+hw;tbb l ox1mdde m7)n0v8.:jnp5Earth’s angular momentum (expressed in base MKS units) associated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constkw*9unipb vov a:r e:jk:, cn33j3:yoant speed of 5.0 m/s along the line shown in the figure. What ispvo3:j uejrnk: yv, i:ncbw3o a3*9:k the magnitude of the particle’s angular momentum calculated from the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed dx ynilaw:+o;0cb rk7p f,m4h*fy 6wc/ ue 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 the7c:+y*xnarof cykfwl ;h /m64 0,pwbi 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 rau kjm)aywu:ps p 1)61fdii 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 rat k 1:fs6mup1)jwu) aypio
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 wh fg48 xc7lh)re gs0lzb2)4rdnile the other disk has radius 2R. Both disks are rotatingscxleg8)hn zl b 0f4)grr 247d 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 an. 52tjf-lbp6 iv,3a zdm.ijuogular momentum of a system to be constaj5vmp bd,6 2 . .f3liuoz-tjiant?

  01.27: A spinning ice skater* 8:oniwoq ly, can 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 kineti : ,*wnyi8oqloc energy?

  03.32: A figure skat:l6.nsmt y8 wjer has 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 3ua pi+j/ehjaz7xlx +xwwsh kg 2623: 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 qs uyycb/6rce4 1 xb83a string, moves in a circle on a horizontal frictionless table as shown. As tcyx /s14e8 cbb63ruyqhe 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 particljc4y 1p7g0hw ee of mass m collides with a thin rod pivoted at one end. The rod has m jh0g1p ye4w7cass 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:5kfre( 3nlj xz l:t.2 mtkwjb7/9 rcy radius R is rotating on a fixed, frictionless platform with constant angular speed ω0 about a fixed axis through its center. A second uniform sorl5yn(zj tm7:kc ex2/:9 3.jkrlf t wblid 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?