The Weight of a 1200-Kg Car Is Supported Equally by the Four

question 70

Multiple Choice

The weight of a 1200-kg car is supported equally by the four tires, which are inflated to the same gauge pressure. What gauge pressure is required so the area of contact of each tire with the road is 100 cm²?

• A)11.6 × 10⁵ Pa
• B)11.6 × 10⁴ Pa
• C)2.9 × 10⁵ Pa
• D)2.9 × 10⁴ Pa
• E)2.9 × 10³ Pa

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Definitions:

Erythropoiesis

The process of producing red blood cells (erythrocytes) in the bone marrow, regulated by the hormone erythropoietin.

Folate

A B-vitamin essential for red blood cell formation, healthy cell growth and function, and the prevention of certain birth defects.

Vitamin K

A fat-soluble vitamin essential for the synthesis of proteins required for blood coagulation and the binding of calcium in bones and other tissues.

Hemoglobin

Hemoglobin is the iron-containing oxygen-transport metalloprotein in the red blood cells of most vertebrates, responsible for the red color.