An object of mass 10kg travelling from left to right at 12ms-1 collides with an object of mass 9kg which is travelling at 6 ms-1 from right to left. The 9kg object bounces back at 2ms-1. Hint: left to right positive direction and right to left negative direction. Determine:
i. The momentum of the 10kg object before collision

ii. The momentum of the 9kg object before collision

iii. The total momentum of the system before collision

iv. The momentum of the 9kg object after collision

v. The momentum of the 10kg object after collision

vi. The velocity and direction of the 10kg object after collision

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

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explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."

moisture is lackin, and organic acids are scarce.