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
Contrary to what some think, thunder is not caused by the lightning bolt âbreaking the sound barrierâ. If this were true, then every time we turned on a light in the house we would hear a sonic boom! The speed of light is about 186,282 miles per second. The speed of sound is about 0.211 miles per second at sea level.