I think it must be 300 x 30...
300 million sq feet = 27,870,912 m2
Nothing can travel faster than the speed of light which is 1080 million kms per hour. ( 300 x 106 metres per second)
300 kph = 83.3333333 meters / second ( 83 1/3 )
It seems you are talking about radio waves. The wavelength (40 m) multiplied by the frequency (7 million / second) must equal the speed of light (300 million meters/second). It seems that in this example numbers, either the wavelength or the frequency, or both, are not expressed with a great accuracy. For example, if 40 meters is exact, the frequency would be close to 7.5 MHz.
Light travels 300,000 km per second, or 300 million meters/second. Convert the 2 hours to seconds, then multiply by 300 million.
Please note that the speed is the same for 1 second or for 1 hour or whatever. Light travels 300,000 km per second, or 300 million meters per second.
Sound travels, in air, at about 320 meters per second. Light travels about 300 000 000 meters per second
All wave radiation travels at the speed of light. The speed of light in a vacuum is approximately 671 million miles per hour or 300 million meters per second.
Light is roughly a million times faster than sound. (Speed of light in a vacuum: 300 million meters/second; speed of sound in air: ca. 350 meters/second; the speed of soundin other substances varies quite a lot.)
The speed of waves varies greatly, depending on the type of wave. The fastest waves travel at the speed of light, which is ca. 300 million meters/second.
The speed of waves varies greatly, depending on the type of wave. The fastest waves travel at the speed of light, which is ca. 300 million meters/second.
299792500 m/s (about 300 million meters per second)
The speed of sound through air is about 340 meters per second. (The speed of sound in water is about 4 times faster than this). The speed of light in air is about 300 million meters per second.
I think it must be 300 x 30...
Radio waves travel at the speed of light 300 Million meters/second, 300e6 meters/second
sound travels over 300 meters per second. do the math ;) but light is just about 300 000 kilometers per second!