Which applications, either for diagnostic purposes or for therapeutic purposes, involve radioactive materials placed in the body? check all that apply. radiopharmaceuticals mri laser eye surgery external beam radiation therapy lithotripsy brachytherapy radioisotope imaging

Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.

At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2i−4j−2k. find an equation for the position vector of the particle.

When using the scientist method, which step comes last?