The speed of sound is the distance travelled per unit time by a sound wave as it propagates through an elastic medium. In dry air at 20 Â°C (68 Â°F), the speed of sound is 343.2 metres per second (1,126 ft/s; 1,236 km/h; 768 mph; 667 kn), or a kilometre in 2.914 s or a mile in 4.689 s. The speed of sound in an ideal gas depends only on its temperature and composition. The speed has a weak dependence on frequency and pressure in ordinary air, deviating slightly from ideal behavior.
A flute is a musical instrument that produces sound when a stream of air is directed against the edge of a hole, causing the air within the body of the instrument to vibrate. Most flutes are tubular, but some are globular or other shapes.
What a flute is made of depends on the type of flute. Most flutes are made of metal, and these are the ones you'll see used in an orchestra. But there are bamboo and other woo â¦ den flutes. Additionally, the recorder, a type of flute, is made of plastic and is commonly available (as are other plastic flutes).ometimes, the mouthpiece/head joint (or both) is made from a better material such as silver, giving the flute a nicer tone. The rest of the flute would usually be silver-plated. A cheaper flute would be made from a material such as nickle.