Ask questions, share knowledge, and connect with a vibrant community on IDNLearn.com. Get the information you need from our community of experts who provide accurate and comprehensive answers to all your questions.

Radiation machines used to treat tumors produce an intensity of radiation that varies inversely as the square of the distance from the machine. At 3 meters, the radiation intensity is 62.5 milliroentgens per hour. What is the intensity at a distance of 2.9 meters?