The snail will go <span>0.18193752 miles </span>
A.
It's has to do with the human body forming in the womb. It has a long explanation to it, but I hope just writing A helps.
Answer:
Explanation:
Given
velocity of boat with respect to river 
velocity of river is 
River is 3.5 km wide
Suppose boat leaves at an angle of 
with vertical such that it reaches exactly opposite end of initial Point
Therefore
component will balance the river Flowso that sin component helps to cross the river
Sound intensity goes inversely as the square of the distance from the source. This is easy to understand if you think of the total sound energy spread out over the surface of a sphere with the source at the center. The surface area of the sphere goes as r^2, so the power density goes inversely as such.
The decibel change is simply
Change = 10 log10( (1/3)^2 ) = -9.54 dB
