section a-a is used to determine the force in member bc. what is the force in bc? also indicate whether it is tensile or compressive.

not too sure thinking it will always be directed towards the centre of the earth. could be wrong not sure

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.

i think the answer is tomato juice? not entirely sure though