Answer:
the answer is. N = 3.2
I. 100000% sure about the answer.
Answer:
Step-by-step explanation:
Given
velocity 
Area of cross-section 
velocity after Falling 0.19 m






conserving Flow



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Triangles are similar ,
Thus :



Inverse both sides

Multiply sides by 6



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Answer:
b
Step-by-step explanation:
bet
Answer:
$79
Step-by-step explanation:
That's the Khan Academy answer