Answer:
Explanation:
Velocity by definition means speed and direction of an object. This means it has a value and a positive or minus sign indicating direction. Speed is the absolute value of velocity because there is no direction correlated with speed. If you add a direction, it is then called velocity
Answer with Explanation:
We are given that
Angle of incidence,
Angle of refraction,
a.Refractive index of air,
We know that
b.Wavelength of red light in vacuum,
Wavelength in the solution,
c.Frequency does not change .It remains same in vacuum and solution.
Frequency,
Where 
Frequency,
d.Speed in the solution,
Which organic compound forms much of the structure of cells?
Answer: A Carbohydrates
The answer is C. You must divide your wavelength and your frequency to get your answer.
<span>Standard deviation is a calculation. It I used in statistical analysis of a easier job. hoped this helps u </span>
