Well, the weight of an average comic can vary greatly. It could be anywhere from 50 grams for a thin, small-sized one to over 300 grams for a thick, large-format comic. It really depends on its dimensions and the type of paper used.
The weight of a physics book depended on the number of pages, the quality of the paper, the material of the cover, and other details. Generally speaking, physics books weighed between 100-200 grams, but the actual weight might vary.
The weight of a book with more than 800 pages depended on the size of the paper, the publishing house, and the printing house. Generally speaking, a book with more than 800 pages might contain 1-2 A4-sized papers, each weighing about 250 grams. Therefore, if the weight of a book's paper was the same, it would weigh about 250-325 grams. However, the actual situation may be different. Therefore, it is recommended to check the detailed weight information of the book when purchasing it.