Two boys push on a box. they each push to the left with a force of 50 n. at the same time, a third boy pushes on the box, to the right, using a force of 50 n. what is the net force on the box?

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