What is the speed of sound in km?
More simply, the speed of sound is how fast vibrations travel. At 20 °C (68 °F), the speed of sound in air is about 343 m/s (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn), or 1 km in 2.91 s or one mile in 4.69 s. Lees verder »
What is the speed of sound in km vs light speed?
Compared with light, which moves at a stunning 186,000 miles per second (300,000 kilometers per second), sound waves are downright sluggish, moving through air at 0.2 miles per second (0.3 km per second). That's why you see lightning before you hear the thunder. Lees verder »
What is the full speed of sound?
The speed of sound is the distance travelled per unit time by a sound wave as it propagates through an elastic medium. The speed of sound is 343.2 metres per second. Lees verder »
How fast is 10 times the speed of sound in km?
CANBERRA (Reuters) - An experimental jet engine has been successfully tested at speeds of up to 11,000 km (6,835 miles) per hour, or 10 times the speed of sound, during trials in Australia's outback, defense scientists said on Friday. Lees verder »
