In Virginia: Anthem Health Plans of Virginia, Inc. trades as Anthem Blue Cross and Blue Shield in Virginia, and its service area is all of Virginia except for the City of Fairfax, the Town of Vienna, and the area east of State Route 123.
For example, at sea level in a standard atmosphere, at a temperaturâ¦e of 59-degrees Fahrenheit (15 Celsius), sound travels 761 miles per hour (1,225 km/p/h). At a temperature of 32-degrees Fahrenheit (0 Celsius) the speed of sound drops to 742 mph (1,194 km/p/h).
Its value is measured at 299,792,458 meters per second. Speed of sound on the other hand, is the distance that sound travels through an elastic medium. In dry air with a temperature of 20 Â°C, the speed of sound is measured at 343.2 meters per second. This translates to 1,236 kilometers per hour, or about one kilometer every three seconds. As mentioned previously, the speed of light is denoted by a âcâ, which stands for constant.