S 897 km 3 hours 299 kilometers per hour kph s 897 k m 3 h o u r s 299 k i l o m e t e r s p e r h o u r k p h If you know two of the three variables distance time and speed then you can use algebra to find what youre missing. X over four 5 8 1 point 27 12 7 12 3. Wavelength speed frequency 4.
L is the wavelength.
How to Measure Speed. In the United States we mostly think of speed in miles per hour or mph. Converting the units the speed is 750 ms. Speed frac Distance Time On the next page there are some examples to work through.