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<u>Answer:</u>
Chipmunk's average acceleration during the 2.07 s time interval = 0.1256 
<u>Explanation:</u>
We have equation of motion, v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration and t is the time taken.
In this case we need to find acceleration value, we have initial velocity = 1.47 m/s, final velocity = 1.73 m/s and time taken = 2.07 seconds.
Substituting
1.73 = 1.47 + a * 2.07
a = 0.1256 
Chipmunk's average acceleration during the 2.07 s time interval = 0.1256 
Acoustic Energy
Sonar uses the echo principle by sending out sound waves underwater or through the human body to locate objects
Force = mass x acceleration
It is measured in Newtons or kg*meters/sec^2
The answer to which type of bond shows two or more atoms baring electrons is B. Covalent