A microwave oven can heat 350 g of water from 25.0C to 100.0C in 2.00 min. (a)

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A microwave oven can heat 350 g of water from 25.0°C to 100.0°C in 2.00 min. 

(a) At what rate is energy absorbed by the water?  

(b) These microwaves pass through a waveguide of cross-sectional area 88.0 cm2. What is the average intensity of the microwaves in the waveguide? 

(c) What are the rms electric and magnetic fields inside the waveguide?

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