Does air temperature affect the speed of sound? Kim Strong, a professor of physics at the University of Toronto says the answer is yes, in fact sound travels faster when the air is hotter. At 25 C, the speed of sound is 1,246 kilometres per hour.

about 351.96 metres per second

The speed of sound in air is approximately 331.5 m/s at 0 °C or around 1200 km per hour. The speed of sound through air is approximately 343 m/s at normal room temperature, which is at 20 °C. The speed of sound through air is 346 m/s at 25 °C.

The equation for the speed of sound in air v=√γRTM v = γ R T M can be simplified to give the equation for the speed of sound in air as a function of absolute temperature: v=√γRTM=√γRTM(273K273K)=√(273K)γRM√T273K≈331ms√T273K.

Temperature is another condition that affects the speed of sound. Heat, like sound, is a form of kinetic energy. Molecules at higher temperatures have more energy and can vibrate faster and allow sound waves to travel more quickly. The speed of sound at room temperature air is 346 meters per second.

A: For each 1 degree Celsius that temperature decreases, the speed of sound decreases by 0.6 m/s….Temperature and Speed of Sound.

Sound does not travel at all in space. The vacuum of outer space has essentially zero air. Because sound is just vibrating air, space has no air to vibrate and therefore no sound. Radio is a form of electromagnetic radiation just like light and can therefore travel through the vacuum of space just fine.

Sound cannot travel through a vacuum. A vacuum is an area without any air, like space. So sound cannot travel through space because there is no matter for the vibrations to work in.

An echo is a sound that is repeated because the sound waves are reflected back. Sound waves can bounce off smooth, hard objects in the same way as a rubber ball bounces off the ground. Echoes can be heard in small spaces with hard walls, like wells, or where there are lots of hard surfaces all around.

Sound will echo in an empty room because if there is nothing to stop the sound reflecting between hard surfaces, such as the walls, windows, ceiling, and floor . Since each surface is not a perfect reflector, some of the sound energy will be absorbed by the surface.

Thus, to hear the echo clearly in the air, the reflecting surface should be at a minimum distance of 16.5m from the source of sound.

The velocity of sound in dry air is approximately 343 m/s at a temperature of 25 °C. Therefore, the reflecting object must be more than 17.2m from the sound source for echo to be perceived by a person located at the source. When a sound produces an echo in two seconds, the reflecting object is 343m away.

For example, if the speed of sound in water is 1500 meters per second and the fisherman’s sonar device detects an echo in 0.02 seconds, the distance of the object under water will be d = v*t = 1500 meters per second * 0.02 seconds = 30 meters (back and forth).

This phenomenon is called an echo, which has its origins in the Greek ekho, meaning “sound.” An echo happens when a sound wave reflects off a surface, such as the water at the bottom of a well, and the sound is repeated back to you. …

The normal intelligible outdoor range of the male human voice in still air is 180 m (590 ft 6.6 in). The silbo, the whistled language of the Spanish-speaking inhabitants of the Canary Island of La Gomera, is intelligible under ideal conditions at 8 km (5 miles).

Due to the impact of continued exposure to loud noise over time, usually the younger we are, the better we hear. The ‘normal’ hearing frequency range of a healthy young person is about 20 to 20,000Hz. So by the time we hit middle-age, we can expect to hear up to around 14,000Hz.

greater wax moth

As far as our pets hearing is concerned, both dogs and cats hear better than us, especially in the upper ranges. In fact, cats can hear almost one octave higher than dogs, and both can hear in the ultrasound level.

Answer:Armadillos: According to anecdotes, these are reported to all have very poor hearing. Bears: The Maryland Zoo in Baltimore (formerly Baltimore Zoo) has a deaf polar bear named Alaska, 10 years old in 2003.

It comes from the coleoid cephalopods, the squids, cuttlefishes, and octopuses. These animals seem to be deaf. Their deafness is so remarkable that it needs to be explained in functional and evolutionary terms.

Not All Bats Echolocate Also, bats aren’t the only animals that use echolocation. Some bat sounds humans can hear. The squeaks and squawks that bats make in their roosts or which occur between females and their pups can be detected by human ears, but these noises aren’t considered to be echolocation sounds.