The figure shows a sound wave as a function of time when the source is stationary with respect to the observer. which shows the perceived sound wave heard by a stationary observer when the source moves toward the observer?

The answer will be d. reflects light because it cant be all the others because light cant be other things other than light

Iread this book last year so take this with a grain of salt.gene jumps from the tree to compete with finny due to the fact that gene is always trying to do better than finny. he is put under the grasp of peer pressure due to finny almost forcing him to do this. ever since he first jumped finny kept pressuring him to jump since he thought gene enjoyed jumping.rather than uses this answer you should probably just reread chapters 3-4

A. to determine if humans can explore mars safely