An object moving in a gravitational field is observed to speed up. Explain why.
A. The object has gained electrical potential energy.
B. The object is falling in the gravitational field, so it has gained kinetic energy.
C. The object has gained chemical potential energy.
D. The object is rising in the gravitational field, so it has lost kinetic energy.

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

80cm/s.

24cm/s.

53.3cm/s.