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Travka [436]
3 years ago
14

Using calcium’s atomic structure, as shown in the image, what is this element’s atomic number?

Physics
1 answer:
ElenaW [278]3 years ago
6 0

Answer:

Atomic number of calcium is 20.

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Responder:

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Explicación:

Utilizando la ley de conservación de la cantidad de movimiento expresada por la fórmula;

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m1 y m2 son las masas de los objetos

u1 y u2 son sus velocidades iniciales

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m1 = 0,519 kg

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m2 = 0,220 kg

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Necesario

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Sustituir en la fórmula los valores dados;

0,519 (4,8) + 0,22 (0) = (0,519 + 0,220) v

2,4912 + 0 = 0,739 v

2,4912 = 0,739v

Dividir ambos lados por 0,739

2,4912 / 0,739 = 0,739 / 0,739

<em>v = 3,37 m / s </em>

<em>Por lo tanto, la rapidez de ambas bolas después de la colisión es de 3.37 m.s hacia la dirección x positiva, ya que m1> m2 y la velocidad común es positiva.</em>

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