When You Drop a Pebble from Height H, It Reaches $\sqrt { 2 }$

question 158

Multiple Choice

When you drop a pebble from height H, it reaches the ground with kinetic energy K if there is no air resistance. From what height should you drop it so it will reach the ground with twice as much kinetic energy?

• A) \(\sqrt { 2 }\) H
• B)2H
• C)4H
• D)8H
• E)16H

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Definitions:

Hematopoiesis

The process of creating new blood cells in the body, occurring predominantly in the bone marrow.

Skeletal System

The framework of bones and other connective tissues which provide support, movement, protection, and mineral storage for the body.

Acid-Base Balance

The mechanism by which the body maintains its pH within a narrow range, ensuring optimal functioning of metabolic processes.

Sole

Pertains to the bottom part of the foot or the undersurface of a shoe or boot.