3. A boy walks 7.00 km [E], then 2.50 km [W] and finally 9.5 km [E] b) Calculate the boy's displacement using the formula.

answer: i think he can see forward ten seconds and move forward ten seconds but giorno can undo his actions with ger.

explanation:

where’s the list ? the question is incomplete

wavelength divides in half and speed stays the same.

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.