The u. s. integrated ocean observing system (ioos) is best described as a. a public and private partnership to increase understanding of the oceans b. a program to improve ocean safety c. a partnership aimed at protecting the environment d. all of the above

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.