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serg [7]
3 years ago
9

Which Astronomer estimated the relative size and distance of the moon and sun?

Physics
1 answer:
N76 [4]3 years ago
8 0
Eratosthenes is the astronomer
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The coefficient of the restitution of an object is defined as the ratio of its outgoing to incoming speed when the object collid
IgorLugansk [536]

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48.16 %

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coefficient of restitution = 0.72

let the incoming speed be = u

let the outgoing speed be = v

kinetic energy = 0.5 x mass x x velocity^{2}

  • incoming kinetic energy = 0.5 x m x x u^{2}

     

  •  coefficient of restitution =\frac{v}{u}

       0.72 =\frac{v}{u}

       v = 0.72u

        therefore the outgoing kinetic energy = 0.5 x m x (0.72u)^{2}

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        outgoing kinetic energy = 0.5184 (0.5 x m x x u^{2})

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3 years ago
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