# Problem: Sinusoidal electromagnetic waves from a radio station process pass perpendicularly through an open window that has area 0.400 m2. The intensity of the wave is constant over the area of the window. The wave carries 0.800 J of energy through the window in 5.00 s. (Note: ε0 = 8.854 x 10-12 C2/N•m2 and μ0 = 4π x 10-7 T•m/A) The window is replaced b y a mirror that has area 0.400 m2. What is the force that the wave exerts on the mirror, if the wave is totally reflected?

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Sinusoidal electromagnetic waves from a radio station process pass perpendicularly through an open window that has area 0.400 m2. The intensity of the wave is constant over the area of the window. The wave carries 0.800 J of energy through the window in 5.00 s. (Note: ε0 = 8.854 x 10-12 C2/N•m2 and μ0 = 4π x 10-7 T•m/A) The window is replaced b y a mirror that has area 0.400 m2. What is the force that the wave exerts on the mirror, if the wave is totally reflected?