3. A stone is thrown upward at an angle. What happens to the horizontal component of its velocity as it rises
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Answer:
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<u>Muzzle velocity 300 m/s</u> corresponds to the .38 special
Thus, the shooter is Janice Jackson with .38 special.
To solve this problem it is necessary to apply the concepts related to destructive interference.
The concept refers to an overlap of two or more waves of identical or similar frequency that, when interfering, creates a new pattern of waves of lower intensity
By definition destructive interference is given by
Where,
n=integer (1,2,3,4,5,6...etc)
t = thickness
M= Index of refrqaction
For minimum thickness to satisfy this condition n will be minimum there,
n=0
Therefore
Solving to find M,
Therefore the correct answer is B. 1.38