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Q: If a crane lifts an object and then lowers the object is the act of lowering the object calculated as work performed by the crane or is the dropping of the object a result of gravity?
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What is the dropping of sediment by gravity called?

Deposition.


How is force being used when dropping a ball?

Gravity


How does calculated specific gravity compare to the hydrometer reading for the liquid?

The calculated specific gravity may be slightly different than the hydrometer reading. The calculated gravity is calculated using specific data while the hydrometer measures the liquid at a specific time and temperature.


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The lowering of the center of gravity will make it easier for the person to balance. The person will use less muscular energy to maintain his balance with that lower center of gravity.


Can elevating feet and lowering head increase blood pressure?

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the leaf does not have much weight for gravity to pull it down


When is meant by accleration due to gravity?

Dropping a stone from a tall building is an example of acceleration due to gravity. The stone's speed will increase as it falls until it reaches terminal velocity.


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One who ignores gravity would likely fall down and hurt himself a lot, and would also be perpetually dropping things too, as well.


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