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How to Convert from Foot/second [ft/s] to Velocity of sound in sea water (20°C, 10 meter deep)?
Convert speeds measured in foot/second to the velocity of sound in sea water at 20°C and 10 meters deep to assist with underwater navigation and acoustic measurements.
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Foot/second [ft/s] to Velocity of sound in sea water (20°C, 10 meter deep) Conversion Table
| Foot/second [ft/s] | Velocity of sound in sea water (20°C, 10 meter deep) |
|---|
Custom Unit Conversion Table Generator – Instant Printable Conversion Tables
Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.
Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.
Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.
| Foot/second [ft/s] | Velocity of sound in sea water (20°C, 10 meter deep) |
|---|
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What Is This Tool?
This tool converts speed values from foot/second, a common unit in US customary and Imperial systems, into the velocity of sound in sea water at 20°C and 10 meters depth. It helps translate conventional speed measurements into local acoustic travel speeds for marine and underwater applications.
How to Use This Tool?
- Enter the speed value in foot/second (ft/s).
- Select the target unit as Velocity of sound in sea water (20°C, 10 meter deep).
- Click convert to get the equivalent speed in the local sound speed units.
Key Features
- Converts foot/second speeds to local sound speed in seawater under specific conditions
- Useful for sonar ranging, underwater communication, and oceanographic measurements
- Simple browser-based unit converter with clear input and output formats
Examples
- 50 ft/s converts to approximately 0.010015775 Velocity of sound in sea water (20°C, 10 meter deep).
- 100 ft/s converts to approximately 0.02003155 Velocity of sound in sea water (20°C, 10 meter deep).
Common Use Cases
- Relating projectile and fluid velocity measurements to underwater sound speed for navigation.
- Calculating distances from sonar travel times using a local sound-speed reference.
- Supporting underwater vehicle positioning and acoustic signal calibration in oceanographic research.
Tips & Best Practices
- Ensure the environmental conditions match 20°C temperature and around 10 meters depth for accurate conversions.
- Adjust calculations if salinity, pressure, or depth deviates significantly from the given conditions.
- Use the converted values to interpret acoustic travel times for precise underwater distance measurements.
Limitations
- The conversion applies only to seawater at 20°C and roughly 10 m depth and may not suit other conditions.
- Variations in salinity, temperature, and pressure affect the velocity of sound and can cause discrepancies.
- Relying on this fixed conversion without environmental adjustment could produce errors in underwater acoustic tasks.
Frequently Asked Questions
- Why does the velocity of sound in seawater vary?
- It depends mainly on temperature, salinity, and pressure that change with depth and location, affecting acoustic wave speed.
- Can this converter be used for other water temperatures?
- No, it is specifically designed for 20°C and 10 meter depth conditions; different temperatures require different sound speed references.
- What practical applications does this conversion support?
- It aids sonar ranging, underwater communications, acoustic positioning, and oceanographic measurements near the water surface.
Key Terminology
- Foot/second [ft/s]
- A speed unit in US customary and Imperial systems representing one foot traveled in one second, equal to exactly 0.3048 meters per second.
- Velocity of sound in sea water (20°C, 10 meter deep)
- The speed at which acoustic waves travel through seawater at 20 °C and about 10 meters depth, influenced by temperature, salinity, and pressure.
- Sonar Ranging
- A technique using sound propagation to detect objects underwater and measure distances by converting travel time to distance using sound speed.