新手上路,有Microwave的问题请教

Assume I attempt to cook a steak in a microwave oven at 3.0GHz.The permittivity of round steak at this frequency is ε = ε0*40(1 - j 0.3) .How deep does the power penetrate the steak？ What happens if you place yourMcDonnell hamburger in a polystyrene foam box and put it into themicrowave oven？我是新手,不知道该如何解这一题,请高手帮忙解题,感激不禁

写中文吧..