When the civil began, most of the railroad track in the united states was in the
1 answer:
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Answer:
12
Explanation:
pressure = force/ area
P=F/A
610 ≈ 6.10
P= 72N/6.10m²
P= 11.8 N m²
11.8 ≈ 12
∴ P= 12 N m²
Answer:
12
Explanation:
pressure = force/ area
P=F/A
610 ≈ 6.10
P= 72N/6.10m²
P= 11.8 N m²
11.8 ≈ 12
∴ P= 12 N m²