4. Which sentence is punctuated correctly? *" 1. The quiet respectful class listened to the guest speaker.
2. The quiet respectful, class listened to the guest speaker.

sufficient and relevant

explanation:

is there an image you meant to add?

explanation:

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.