The Rotating Systems Shown in the Figure Differ Only in That

question 80

Multiple Choice

The rotating systems shown in the figure differ only in that the two identical movable masses are positioned a distance r from the axis of rotation (left) , or a distance $r / 2$ from the axis of rotation (right) . If you release the hanging blocks simultaneously from rest, and call $t _ { \mathrm { L } }$ the time taken by the block on the left and $t \mathrm { R }$ the time taken by the block on the right to reach the bottom, respectively, then

• A) \({ } ^ { t } \mathrm {~L} = { } ^ { t } \mathrm { R }\)
• B) \(t _ { L } > t R\)
• C) \(t L < t R\)

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Definitions:

Gravity Survey

A geophysical method for measuring variations in the Earth's gravitational field, which can indicate differences in the distribution of densities and hence the structure of the subsurface.

Plate Boundaries

The edges where two or more of Earth's tectonic plates meet, often associated with seismic and volcanic activities.

Fault Systems

Networks of fractures in the Earth's crust along which displacement has occurred, important in understanding the movement of Earth's tectonic plates.

Volcanic Activity

Refers to the eruption of magma from beneath the Earth's crust, forming igneous rocks and often creating mountains or craters.