How is the underlined phrase being used in this sentence: The employees worked their hands off.

A. Using the connotation

B. technically

C. using the denotation

D. figuratively

figuratively

Explanation: it's using figurative language by comparison. It uses an ordinary sentence to refer to something without directly stating it.

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.