Can someone please interpret/explain the the what’s being said in the sentence “perhaps, if they hit the magic decibel, the whole building will lift-off and we'll ride to glory”

If the magic hits the tower it will explode.

Explanation: As we all watch movies that have exploding somethings notice that the "lift-off" or "fly" because of the wave.

the boy's acceleration toward the girl is 2.08 m/s^2.

explanation:

according the newton's third law, the force causing the girl accelerate towards the boy will be me with equal counter-force causing the boy to accelerate towards the girl. these forces will be of equal magnitude and allows us to determine the boy's acceleration:

the boy's acceleration toward the girl is 2.08 m/s^2.

i believe that the answer is true.