Answer:
For a body moving at a uniform velocity you can calculate the speed by dividing the distance traveled by the amount of time it took, for example one mile in 1/2 hour would give you 2 miles per hour. If the velocity is non-uniform all you can say is what the average speed is.
Answer:
-8m/s
Explanation:
v=wavelength*f=-2*4=-8m/s
Cosmic rays are high-energy radiation which do not have a visible color, but if you mean the paint type it is a grayish color.
Answer:
The evaporation of water is an example of a change in Pysical Change .
