Dilatacion Superficial Ejercicios Resueltos Jun 2026

A = A0 + ΔA = 0,5 m² + 0,0008625 m² = 0,5008625 m²

A brass plate has a circular hole of diameter 10 cm at 20°C. (\alpha_\textbrass = 1.9 \times 10^-5 , \text°C^-1). Find hole area at 200°C.

Respuesta: ΔA ≈ 4,75×10^−5 m^2; A ≈ 0,02644 m^2.