1 (b) A narrow street between the fronts of houses or businesses. 2  This type of alley is found in the older parts of many cities, including American cities like Philadelphia and Boston (see Elfreth's Alley, Philadelphia, Pennsylvania). 3  Many are open to traffic.
One Waves (WAVES) is currently worth $6.56 on major cryptocurrency exchanges. You can also exchange one Waves for 0.00073856 bitcoin(s) on major exchanges. The value (or market capitalization) of all available Waves in U.S. dollars is $655.54 million.
The wave speed is the distance covered by the wave in a given interval of time. It can be said that the speed of a wave is also the wavelength/period. Wave Speed = $\frac{Distance\ Covered}{Time\ taken}$.The wave speed varies for different types of waves. The Speed of light wave is 3 $\times$ $10^{8}$ m/s.