a hot-air balloon is accelerating upward under the influence of several forces. the hot air inside the balloon has a density of 0.930 kg/m3, and the density of the cool air outside is 1.29 kg/m3. the mass of the balloon fabric and basket is negligible. find the acceleration of the rising balloon. include in your solution a free-body diagram for the balloon.

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.

im srry but ur wrong the answer is d a smooth rock, some red dirt, and an empty bird's nest.