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The speed of sound depends on the density of the medium. In air, it depends on

the temperature, pressure, and humidity of the air.

A useful approximate number to remember is 343 meters (0.343 kilometer) per second.

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14y ago

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Related Questions

What is the speed of sound in air per hour?

Speed of sound in air is sometimes quoted as 331 meters per second or something similar; but actually, the speed varies, depending on the temperature. If you want kilometers per hour, just multiply meters per second by 3.6.


Speed of sound per hour?

The speed of sound in air is approximately 343 meters per second. To convert this to miles per hour, multiply by 3600 seconds in an hour and then divide by 1609 meters in a mile. The speed of sound in air is roughly 767 miles per hour.


How fast is mach two?

Mach one is the speed of sound, which is about 761.2 miles per hour (340.3 meters per second). Mach two is twice the speed of sound, which is about 1,522.4 miles per hour (680.6 meters per second).


What is the speed of light in kilometers per hour?

The speed of light is 1,079,252,848.8 kilometers per hour.


How fast is 75 kilometers?

75 kilometers is not a speed, it is a distance. A speed might be 75 kilometers per hour, 75 kilometers per day, or 75 kilometers per second.75 kilometers is not a speed, it is a distance. A speed might be 75 kilometers per hour, 75 kilometers per day, or 75 kilometers per second.75 kilometers is not a speed, it is a distance. A speed might be 75 kilometers per hour, 75 kilometers per day, or 75 kilometers per second.75 kilometers is not a speed, it is a distance. A speed might be 75 kilometers per hour, 75 kilometers per day, or 75 kilometers per second.


Does sound and light travel at the same speed?

No, sound and light travel at different speeds. In a vacuum, light travels at a speed of approximately 186,282 miles per second (299,792 kilometers per second), while the speed of sound in air is around 767 miles per hour (1,235 kilometers per hour).


Speed of sound equals how many km pH?

The speed of sound changes with different atmospheric conditions, but is around 340 meters per second.That's equivalent to (340 x 3,600) = 1,224 kilometers per hour


What is the speed of sound according to scientists?

The speed of sound in air is 344metres per second or 1238 kilometers per hour or 770 miles per hour. In water sound waves move much faster, but slower at higher altitudes.


How many km can a aeroplane fly?

twice the speed of sound (1400 miles per hour or 2250 kilometers per hour)! ...


What is the speed of sound and light in KM?

Sound . . . 0.34 km/second Light . . . . 300,000 km/second


If an automobile is travelling at 26 miles per hour what is its speed in lilometers per hour?

To convert miles per hour to kilometers per hour, you can multiply the speed in miles per hour by 1.60934. Therefore, if an automobile is traveling at 26 miles per hour, its speed in kilometers per hour would be 41.8 kilometers per hour.


How fast do sound waves travel in kilometers per hour?

Sound travels at 1,225.044 kilometers per hour at sea level.