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Context: Context: A force defined by 𝐹 = 𝛼𝑡2 + 𝛽𝑡 acts on a particle at a given time t. The factor which is dimensionless, if 𝛼 and 𝛽 constants, Is.1. 𝛼𝛽2. 𝛼 𝛽𝑡3. 𝛼 𝛽𝑡4. 𝛽𝑡𝛼 Answer question Answer question

Question

Context: Context: A force defined by 𝐹 = 𝛼𝑡2 + 𝛽𝑡 acts on a particle at a given time t. The factor which is dimensionless, if 𝛼 and 𝛽 constants, Is.1. 𝛼𝛽2. 𝛼 𝛽𝑡3. 𝛼 𝛽𝑡4. 𝛽𝑡𝛼 Answer question Answer question

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Solution

Para determinar cuál de los factores es adimensional, primero debemos analizar las dimensiones de 𝛼 y 𝛽 en la ecuación de la fuerza 𝐹 = 𝛼𝑡² + 𝛽𝑡.

La fuerza (𝐹) tiene dimensiones de [M][L][T]⁻² (masa, longitud, tiempo al cuadrado inverso).

  1. Para el término 𝛼𝑡²:

    • 𝑡 tiene dimensiones de [T].
    • 𝑡² tiene dimensiones de [T]².
    • Entonces, 𝛼 debe tener dimensiones de [M][L][T]⁻⁴ para que 𝛼𝑡² tenga dimensiones de [M][L][T]⁻².
  2. Para el término 𝛽𝑡:

    • 𝑡 tiene dimensiones de [T].
    • Entonces, 𝛽 debe tener dimensiones de [M][L][T]⁻³ para que 𝛽𝑡 tenga dimensiones de [M][L][T]⁻².

Ahora, evaluamos las opciones dadas:

  1. 𝛼𝛽²:

    • Dimensiones de 𝛼: [M][L][T]⁻⁴.
    • Dimensiones de 𝛽: [M][L][T]⁻³.
    • Dimensiones de 𝛽²: ([M][L][T]⁻³)² = [M]²[L]²[T]⁻⁶.
    • Dimensiones de 𝛼𝛽²: [M][L][T]⁻⁴ * [M]²[L]²[T]⁻⁶ = [M]³[L]³[T]⁻¹⁰ (no es adimensional).
  2. 𝛼𝛽𝑡³:

    • Dimensiones de 𝛼: [M][L][T]⁻⁴.
    • Dimensiones de 𝛽: [M][L][T]⁻³.
    • Dimensiones de 𝑡³: [T]³.
    • Dimensiones de 𝛼𝛽𝑡³: [M][L][T]⁻⁴ * [M][L][T]⁻³ * [T]³ = [M]²[L]²[T]⁻⁴ (no es adimensional).
  3. 𝛼𝛽𝑡:

    • Dimensiones de 𝛼: [M][L][T]⁻⁴.
    • Dimensiones de 𝛽: [M][L][T]⁻³.
    • Dimensiones de 𝑡: [T].
    • Dimensiones de 𝛼𝛽𝑡: [M][L][T]⁻⁴ * [M][L][T]⁻³ * [T] = [M]²[L]²[T]⁻⁶ (no es adimensional).
  4. 𝛽𝑡/𝛼:

    • Dimensiones de 𝛽: [M][L][T]⁻³.
    • Dimensiones de 𝑡: [T].
    • Dimensiones de 𝛼: [M][L][T]⁻⁴.
    • Dimensiones de 𝛽𝑡/𝛼: ([M][L][T]⁻³ * [T]) / [M][L][T]⁻⁴ = [M][L][T]⁻² / [M][L][T]⁻⁴ = [T] (no es adimensional).

Ninguna de las opciones dadas es adimensional. Por lo tanto, parece que hay un error en las opciones proporcionadas.

This problem has been solved

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