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Dilatacion Superficial Ejercicios Resueltos -

ΔA = β * A * ΔT = 1,2 × 10^-5 K^-1 * 5 m^2 * 70 K = 0,0042 m^2

(22 , cm^2) (aluminum larger).

A plate expands from (0.1 , \textm^2) to (0.1002 , \textm^2) for (\Delta T = 100 , \text°C). Find (\alpha). (1.0 \times 10^-5 , \text°C^-1) dilatacion superficial ejercicios resueltos

Donde:

Luego, podemos calcular el cambio en el área (ΔA): ΔA = β * A * ΔT =

$$A_f = A_0 (1 + \beta \Delta T)$$ $$A_f = 25\pi \left[1 + (24 \times 10^-6)(200)\right]$$ $$A_f = 25\pi \left[1 + 0.0048\right]$$ $$A_f = 25\pi \left[1.0048\right]$$ $$A_f \approx 25.12\pi , \textcm^2$$ 0042 m^2 (22