Does the variation in 'g' due to depth have any practical use?
No, it is purely of academic interest
Yes, it is important in studying the Earth's interior
Yes, it affects the operation of submarines
None of the above
Changes in "g" due to depth affect the operation of submarines because they affect their buoyancy and stability. Submarines must adjust their ballast tanks to maintain neutral buoyancy as they descend to deeper depths.
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