Apendulum has 445 j of potential energy at the highest point of its swing. how much kinetic energy will it have at the bottom of its swing?

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.