Walter used to talk about The Doors all of the time. One day…

Walter used to talk about The Doors all of the time. One day, his brother decided to ignore Walter whenever he would talk about The Doors. As a result, Walter’s conversations about this band stopped.  Recently, his brother observed that Walter started talking about The Doors once again after they went to a music store where they had purchased a Doors album a while ago. The recent increase in Walter’s conversation about The Doors can be conceptualized as:

A student read 75 words per hour on Monday, 150 per hour on…

A student read 75 words per hour on Monday, 150 per hour on Tuesday, 300 per hour Wednesday, and 600 per hour on Thursday. This change in the “number of words read per hour” over the 4 consecutive sessions would be an example of which dimensional quantity?