Exam 17: Physics of Rotation and Equilibrium

Two people are balanced on a see-saw. If one person leans toward the center of the see-saw, that person's end of the see-saw will

A phonograph record player has constant rotational speed. The speed of the record surface relative to the pickup needle is greatest

The center of gravity of a circular disk of sheet metal is

Horses that move with the fastest linear speed on a merry-go-round are located

Your pet hamster sits on a record player whose angular speed is constant. If he moves to a point twice as far from the center, then his linear speed

When a twirling ice skater brings her arms inward, her rotational speed

Which moves faster in m/s on a merry-go-round: a horse on the inside or a horse on the outside near the outer rail?

If you replace the wheels and tires of your car with new ones having greater diameters, all of your speedometer readings thereafter will

When doing somersaults, you'll more easily rotate when your body is

For a system in mechanical equilibrium,

A baseball bat is balanced on a fulcrum. The center of gravity of the bat is located

Toss a baseball bat into the air and it wobbles about its

The rotational inertia of your leg is greater when your leg is

Consider a string with several rocks tied along its length at equally spaced intervals. You whirl the string overhead so that the rocks follow circular paths. Compared to a rock in the middle of the String, a rock at the outer end moves

The long, heavy tail of a spider monkey enables the monkey to easily vary its

The center of mass of a human body is located at a point

Consider a rotating donut-shaped space habitat where living quarters are on the inside surface farthest from the axis. If the rotational speed of the habitat increases, the apparent weight of people Inside

To turn a stubborn screw, it is best to use a screwdriver that has a

A ball rolls down a hill mainly because of

An industrial flywheel has a greater rotational inertia when most of its mass is