Eric wants to perform an investigation on red blood cells, but before beginning his investigation, he wants to learn more about them. Which of the following is an appropriate reference material that Eric could use to learn more about red blood cells? A. a friend from school B. a scientific journal C. a newspaper editorial D. a science-fiction book about blood

think about the oscillation of the toy shown in the video. when the toy is at the highest point of its motion, its velocity is zero and its acceleration is negative.

they start with the same

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.