The intensity of wave:
On its highest power setting, a microwave oven can increase the temperature of 0.425 kg of spaghetti by 45°C in 120 seconds.
A) What was the rate of energy absorption, in watts, by the spaghetti, given that its specific heat is 3.76 × 103 J/ (kg°C) (this is about 90% that of water)?
B) Find the average intensity of the microwaves absorbed by the spaghetti, in watts per square meter, given that they are absorbed over a circular area 18.5 cm in diameter.
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