The following sentence communicates a(n) tone. "now is the time to lift our national policy from the quicksand of racial injustice to the solid rock of human dignity." scolding disappointed urgent determined

Determined is your answer

Note the words "Now is the time...", which means that  he is determined to change the policy of the nation, from racial injustice to human dignity.

hope this helps

it should discride this whale so it shouldnt be that hard

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.