Afather (mf = 85 kg) and his daughter (md= 45 kg) stand on a flat frozen lake of negligible friction. they hold a 14 ­m­ long rope stretched between them. the father and daughter then pull the rope to bring them together. if the father is initially standing at the origin, how far from the origin will they meet?

Daughter element the new element produced along with a decay particle in a nuclear transmutation 2. half-life the substance that decays in a nuclear transmutation 3. parent element the change of one chemical element into another by nuclear decay or radioactive bombardment 4. transmutation the time required for the decay of one-half of the atoms in a sample of radioactive material