Dilatacion Superficial Ejercicios Resueltos May 2026

1. Key Concept & Formula

• Dato: Coeficiente de dilatación lineal del cobre ($\alpha_Cu$) = $17 \times 10^-6 , ^\circ\textC^-1$.

Luego, podemos calcular el cambio en el volumen (ΔV):

1. Compute (\beta = 2\alpha = 3.4 \times 10^-5 , ^\circ C^-1).
2. (\Delta T = 120 - 20 = 100^\circ C).
3. (\Delta A = A_0 \beta \Delta T = 2.000 \times (3.4 \times 10^-5) \times 100)
   (\Delta A = 2 \times 3.4 \times 10^-3 = 0.0068 , m^2).
4. (A_f = A_0 + \Delta A = 2.000 + 0.0068 = 2.0068 , m^2).

Main Formula

When solving these problems, keep these relationships in mind: : ΔAcap delta cap A : Change in area. A0cap A sub 0 : Initial area. (gamma): Coefficient of superficial dilatation (usually ΔTcap delta cap T : Change in temperature ( Final Area : Quick Solved Example Problem : A steel plate has an initial area of 20∘C20 raised to the composed with power C . What is its final area if heated to 100∘C100 raised to the composed with power C Step 1: Identify : Step 2: Calculate ΔTcap delta cap T : Step 3: Solve for ΔAcap delta cap A : Final Result : dilatacion superficial ejercicios resueltos

Solution:

Ejercicio 2

: Provides detailed step-by-step solutions for problems involving iron gates and temperature decreases. Scribd - Practical Physics Class Luego, podemos calcular el cambio en el volumen (ΔV):

tiene un agujero circular en el centro. Si la lámina se calienta y su área total aumenta en Main Formula When solving these problems