Two Balls Have the Same Shape and Size but One

question 48

Multiple Choice

Two balls have the same shape and size but one is denser than the other.When they are dropped in air, which has the greater acceleration? Do not ignore air resistance.

• A)The heavier ball
• B)The lighter ball
• C)They have the same acceleration
• D)The heavier ball if atmospheric pressure is high, they lighter ball if it is low
• E)The lighter ball if atmospheric pressure is high, the heavier ball if it is low

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Definitions:

Polycythemia

An excess of red blood cells.

Bone Marrow

Bone marrow is the soft, spongy tissue inside bones that produces blood cells, including red and white blood cells and platelets.

Red Blood Cells

Cells in the blood that carry oxygen from the lungs to the body's tissues and carbon dioxide back to the lungs to be exhaled, crucial for the body's respiratory process.

Hemoglobin

The combination of a protein and iron pigment in the red blood cells that attracts and carries oxygen in the body.