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rosijanka [135]
3 years ago
7

Which is bigger, a kilometer or a mile?

Physics
2 answers:
Marta_Voda [28]3 years ago
7 0
Mile is much more bigger than kilometer.
I am Lyosha [343]3 years ago
7 0
1 mile = approx 1.609 kilometer
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The potential energy in the spring at full compression = the initial kinetic energy of the bullet/block system

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0.5(205)(0.35)^2 = 12.56 J = 0.5(M + 0.0115)v^2

Using conservation of momentum between the bullet and the block

0.0115(265) = (M + 0.0115)v

3.0475 = (M + 0.0115)v

v = 3.0475/(M + 0.0115)

plugging into Energy equation

12.56 = 0.5(M + 0.0115)(3.0475)^2/(M + 0.0115)^2

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12.56 = 4.6436/ M + 0.0115

12.56 ( M + 0.0115 ) = 4.6436

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12.56 M = 4.4992

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M = 0.358 Kg

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