13.47: Which one of the following choices best represents t 37y3nllp8mvlou; vx7u kg5w2dm8q8the magnitude of the angular momentum of the Earth (expressed in base MKS units) associated with its rotation 8 p3x3w58g dl q8 lyuo2nvt7mluk ;7vmabout its axis?

  17.37: Which one of the fo4 no70zgn.xkcj (ca c;llowing choices best approximates the magnitude of the Earth’s a7.z0; k( n gnjxccca4ongular momentum (expressed in base MKS units) associated with its orbit around the Sun?

  11.40: A 2.0 kg particle travelo qtwj,s1ky41vo; s p1s 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 momentum calculated from the ori jtqwv;p4 k1so1yo 1,sgin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed due rfkhh9lh( tj x4k 28gf;wz.h9South. She applies the brakes quickly bringing the9t4kfwjzhhhf.gr;l(89hx k 2 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 rest from Mary’s point of view?

  03.41: Two uniform spheres of mass im*ja d fbqcl ,w43dc2n0f5 g2M have radii R and 2R. Each sphere is rotating about a fixed axis through a diameter. The rotational kinetic energies of the spheres arewl42dd*bmc 2c fj i3 5aqgnf0, 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 ma ap d(z:(cmm-w xy5e1rde of the same material. One disk has radius R while the other disk has radius 2R. Both disks are rotating about a fixed axis perpe:zrm (5xaw d(-cm1yp endicular 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 momentuggf vh/q ),v09ue c)dvm of a system to be constant?v0/qhg g , ucev)vdf9)

  01.27: A spinning ice skater can increase his rate of rotation by bringing 5c.o-8srqy hwcx gj61mk xp)xu/6us5his arms and free leg closer to his body. How does this x km w561hc o/85c6ugu. j-rxqspx)syprocedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a moment of inertiagz vo49z yx.p:dim:jid8*)k 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 a momennr5 +ns10k +q;rjsxs nt 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 on a hori -kc./o-xnqgbmx uo( jka)a2 ) 1q,jkvzontal 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 inx/o-v-jkxck)ok (j,g1. aubq2q)nm a the table?

  08.40: A point particle of mass m collides knz97rc ke5ff22 t od8d9si-:t5rwgrtn3b) zwith a thin rod pivoted at one end. The rod has mass M=2m, length L , and moment of iz2 :ke5rr nrksb 3g 2t ic)ztffon -9897wddt5nertia $I=\frac{1}{3}ML^{2}$ . 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 hd;fhkw56/* s44;bwwl pxs iya 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 llh/ yhw;sp45w bd;i 6k 4xw*sfine up. When equilibrium is established, the disks are spinning at the same rate. What is the angular speed of the disks at equilibrium?