The small submarine is at β1,320 feet in relation to sea level. The submarine needs to be at 180 feet below sea level in 60 minutes.What does the average rate of ascent need to be? A. 19 feet per minute B. 18 feet per minute C. 17 feet per minute D. 16 feet per minute
Question
Answer:
Current depth: -1,320 ftNeeded depth: -180 ft
-1,320 - (-180) = - 1,140 ft
We need to climb at a rate of 1,140 feet per 60 minutes, or 19 feet per minute, to read 180 feet below sea level. Answer A is correct.
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