5. How does the electric force (conceptually) change? (don't use K value) 5A. If one charge is doubled and the distance is tripled?
5B. If both charges are quadrupled and the distance is doubled?

c.the charges if the proton and electron and gravity

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.