Question

short answer
chemistry and physics​

Answer 1

Answer:

7) the quantity of motion of a moving body, measured as a product of its mass and velocity.

6) an act of formally or confidently stating something. something formally or confidently stated or a document containing such a statement the Declaration of Independence. declaration.

Answer 2

Answer:

answer nomber (b)

the quantity of motion of a moving body, measured as a product of its mass and velocity.

2.

the impetus gained by a moving object.

"the vehicle gained momentum as the road dipped"