Mrs. Grosenheffer, whose mass is 141 kg, is doing a science demonstration in class. a) How much gravitational force does she exert on 55.0 kg Carly in the front row 1.50 m away?

b) How much gravitational force does she exert on 65.0 kg Norton in the back row 4.0 m away?

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.