The curie family worked with radiation and their research led to the development of several medical techniques for diagnosing problems and curing disease. which of the following is a technique of nuclear medicine? select one: a. x-ray imaging b. radiation therapy, especially for cancer c. electrocardiograms d. chemotherapy

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up