One day, five- year old barbara was running down the street. As she opened the gate to her friends yard, a big dog jumped out and bite her. She was terribly startled and cried out in pain. She now cries whenever she sees any dog

instinct

Explanation:

t = 1/400 h   ⇔ 0.0025 h ⇔ 9s ⇔ 0.15 m

any of the answers are correct.

the force represented by vector a is normal force. if the hockey puck is moving to the right, when it is hit with a significant force by the hockey stick the puck will move off in a different direction. correct on edge.