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.
The weight of a mathematics book depended on many factors such as the thickness of the book, the number of pages, the quality of the paper, the quality of the printing, and so on. An ordinary math book usually weighed between 250 to 500 grams. However, the exact weight might vary according to the book.