A cord of wood is a standard unit of measure. It typically consists of 128 cubic feet of stacked wood. It's usually made up of pieces of wood that are stacked neatly. The number of individual pieces can vary greatly depending on the size of each piece, but it's a lot. A cord is often thought of as a large amount of firewood.
A rick of wood is not as precisely defined as a cord. It generally refers to a stack of wood, but its size and volume can vary. Commonly, a rick might be around 1/4 to 1/3 of a cord, so perhaps 32 to 42 cubic feet or so. The weight of a rick depends on the type of wood and its moisture content, but it could be anywhere from 500 to 1000 pounds or more. The price of a rick also varies based on location and type of wood, but it might be in the range of $50 to $200 or so.
The weight of a cord of wood also depends on the type of wood and how wet it is. On average, a cord of dry hardwood might weigh around 2000 to 3000 pounds, while a cord of softwood could be a bit less, maybe 1500 to 2500 pounds. The price of a cord can range from $150 to $500 or more, depending on factors like wood species and location.