16. Angular Momentum

An object's angular momentum is proportional to its $?$.

Why do you expect neutron stars to spin more rapidly than white dwarfs?

Which of the following statements does not use the term angular size or angular distance correctly?

Given that the average diameter of the Moon is approximately $\mathrm{3,474}$ km and its average distance from Earth is about $\mathrm{384,400}$ km, what is the Moon's angular size as seen from Earth in arcseconds?

A uniform door of mass $M$ and width $w$ is initially at rest and free to rotate about its hinges. A small ball of mass $m$ traveling at speed $v$ strikes the edge of the door perpendicularly and sticks to it. What is the angular velocity $\omega$ of the door (with the ball attached) just after the collision?

How is the angular displacement $\theta$ related to the angular velocity $\omega$ for an object rotating at constant angular velocity?

Two stars are observed from Earth to be separated by a distance $d$ on the sky, and they are both at a distance $D$ from Earth. What is the angular separation $\theta$ between the two stars in degrees?

The angular momentum of a particle is ____ its velocity $v$.

A solid disk of mass $m$ and radius $R$ is rotating about its central axis. At what angular velocity $\omega$ will its angular momentum be equal to $L$?

Two ladybugs, $A$ and $B$, are sitting at different distances from the center of a rotating turntable that spins at a constant rate. If both ladybugs are fixed to the turntable, how does the angular velocity of ladybug $A$ compare to that of ladybug $B$?

A solid disk of mass $m$ and radius $R$ rotates with angular velocity $\omega$ about its central axle. What is the angular momentum of the disk about the axle?

A uniform bar of mass $m$ and length $L$ rotates with angular velocity $\omega$ about an axle passing through one end and perpendicular to its length. What is the angular momentum of the bar about the axle?

Which physical principle best explains why already spinning nebula clumps flatten into discs during their evolution?

A wheel initially at rest is subjected to a constant net torque, causing it to accelerate with a constant angular acceleration of $2.0 \mathrm{rad}/s^2$. What is the angular velocity of the wheel at $15 s$?

Which of the following refers to the angle that is rotated in a given unit of time?