1. Let us assume a head-on elastic collision occurs between two objects (A and B) having masses ma and mg respectively, on a line. Both the objects
have initial velocities Vox and Vos before collision Applying conservation
of momentum derive the general expression for the final velocities Vox and
VfB of both.

i don't understand is there any other way you can rephrase it plz let me know in the comments and i will do it.

explanation:

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

temp rises, and expansion

answer: 31, 5556. 952 seconds