Obstruction in the urinary tract. Anything that slows the flow of urine or reduces your ability to completely empty your bladder when urinating, such as a kidney stone, structural abnormalities in your urinary system or, in men, an enlarged prostate gland, can increase your risk of kidney infection.
Quick Answer. The speed of sound, known as Mach 1, varies depending on the medium through which a sound wave propagates. In dry, sea level air that is around 25 degrees Celsius, Mach 1 is equal to 340.29 meters per second, or 1,122.96 feet per second. Continue Reading
1 How fast sound travels (i.e. the speed of sound) depends on what medium it is traveling through. 2  The speed of sound is 340 meters per second in air while as the speed of sound is 1450 meters per second in water.e hear sounds because the vibrations created travel through the air to our ears. Notice that when people want to hear something better they often cup their hand around their ear. This is to help them catch the sound waves.