1. Radiation Exposure- there is a very strong radiation source in the center of a large 120 x 120 foot room. A person must run through this room to get to safety. Her escape route takes her the full length along one wall of the room. she is not exposed to any radiation outside the room. the strength of the radiation is inversely proportional to the square of her distance from the source. at 50 feet, her body is absorbing raditaion at the rate of 200 units per secon. if she runs at 12 feet per second, what is the total radiation dose she receives during her dash to safety?