Afootball is kicked into the air at an angle of 45 degrees with the horizontal. at the very top of the ball's path, the net force acting upon it is (neglect the effects of air resistance.)

Vertical Force Only

Explanation:

When a football or any other particle is thrown at an certain angle then at highest point force acting on it is equal to the weight of object because no other force is acting in the vertical direction except gravity(Neglecting  air resistance).

As long as there is no Force in Horizontal direction there will only be vertical force acting on the football at highest Point          

the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right