If you do not hold a Texas sales and use tax permit and you bought items on which the seller did not collect Texas sales or use tax, you must report your purchases on form 01-156, Texas Occasional Use Tax.
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.
Temperature and the speed of sound. Temperature is also a condition that affects the speed of sound. Heat, like sound, is a form of kinetic energy. Molecules at higher temperatures have more energy, thus they can vibrate faster.Since the molecules vibrate faster, sound waves can travel more quickly.he speed of sound in room temperature air is 346 meters per second. This is faster than 331 meters per second, which is the speed of sound in air at freezing temperatures. The formula to find the speed of sound in air is as follows: v = 331m/s + 0.6m/s/C * T. v is the speed of sound and T is the temperature of the air.