Question 753Navigation General70% to pass
While navigating in fog off a coastline of steep cliffs, you hear the echo of the ship's fog horn 4 seconds after the signal was sounded. What is the distance to the shore?
AI Explanation
The correct answer is D) 730 yards.
The reasoning is as follows:
The time it takes for the sound of the ship's fog horn to travel to the shore and reflect back is 4 seconds. Sound travels at approximately 1,100 feet per second in air. Therefore, the total distance the sound travels is 1,100 feet x 4 seconds = 4,400 feet. Since the sound travels to the shore and back, the distance to the shore is half of the total distance, which is 4,400 feet / 2 = 2,200 feet, or 730 yards.
The other answer choices are incorrect because they do not accurately calculate the distance based on the given time delay of the echo.
Related Questions
#751 Which cloud commonly produces a halo about the Sun or Moon? #752 When cold air displaces warm air you have a(n) _______________.#754 The wind velocity is higher in the dangerous semicircle of a tropical cyclone because of the _______________.#755 Your present weather is sunny with a steady barometer. A low swell approaches your vessel from the south with crests passing at relatively long periods of about four per minute. This usually indicates _______________.#756 What option does an Electronic Plotting Aid (EPA) not have?