Question: A cube of water 10 cm on a side is placed in a microwave beam having E 0 = 11 kV/m. The microwaves illuminate one

A cube of water 10 cm on a side is placed in a microwave beam having E₀ = 11 kV/m. The microwaves illuminate one face of the cube, and the water absorbs 80% of the incident energy. How long will it take to raise the water temperature by 50°C? Assume that the water has no heat loss during this time.

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