Answer:
The answer is the kinetic energy of sled B after it crash is 6439j.
I think you would use F = ma
F = 65*10
F = 650N
(The 10m/s is from acceleration due to gravity)
The valence electrons of metals are weakly attracted to the parent nuclei, so the electrons break free and float. The moving electrons form a electron <u>negative</u> blanket that binds the atomic <u>positive</u> nuclei together, forming a metallic bond.
So the answers are <u>{ Negative }</u> and <u>{ Positive }.</u>
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Answer:
7.99 or 8 depends where you round.
Explanation:
Distance divided by time so 1246/156=7.98717948718