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

question 32

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 $100 \mathrm {~cm} ^ { 2 } ?$

• A) \(2.9 \times 10 ^ { 5 } \mathrm {~Pa}\)
• B) \(12 \times 10 ^ { 5 } \mathrm {~Pa}\)
• C) \(2.9 \times 10 ^ { 4 } \mathrm {~Pa}\)
• D) \(12 \times 10 ^ { 4 } \mathrm {~Pa}\)

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Definitions:

Mesophylls

The inner tissue of a leaf, containing many chloroplasts, where photosynthesis occurs.

Stroma

Thick, cytoplasm-like fluid between the thylakoid membrane and the two outer membranes of a chloroplast. Site of light-independent reactions of photosynthesis.

Rubiscos

The enzyme involved in the first major step of carbon fixation in the process of photosynthesis, playing a pivotal role in converting carbon dioxide into organic compounds.

Stomata

Singular stoma. Of plants, tiny gaps between pairs of guard cells in epidermis; allow internal tissues to exchange gases with the air. Can be closed to prevent water loss.