Yes
A backpack is exactly the same thing. A book bag is not just for books you know.
Bolsa de libros is "book bag"; you can also put your books in a mochila, a knapsack/backpack.
Mark Bridges has written: 'The Gig Bag Book Of Arpeggios For All Guitarists (Gig Bag Book of)' 'The Gig Bag Book Of Guitar Complete (Gig Bag Books)'
With books. . . . . . definitely Without books . . . probably
why did walter dean myers carry his book home in a paper bag
4 Books If you bought 4 books for $3.50 each that would be $14. If you also bought a tote bag for $5 then your total would be $19.
No, it is a noun, or a verb (to book passage, to book a suspect). But it is widely used as an adjunct, e.g. book sale, book bag, book signing.
a fulcrum.
If you don't have a book bag for school, you can use a backpack or another suitable bag to carry your books and school supplies. Alternatively, you can also carry your items in a reusable shopping bag or a tote bag. Just make sure the bag is sturdy enough to hold everything you need for the day.
"I was teased if I brought my books home," said Mr. Myers, now a prolific and award-winning children's book author. "I would take a paper bag to the library and put the books in the bag and bring them home. Not that I was that concerned about them teasing me - because I would hit them in a heartbeat. But I felt a little ashamed, having books."
There is no such term as "bag pull" in the English language. Unless you mean "pull something out of a bag" which is an idiom that means to do something in the spur of the moment that solves a problem.
The power required to move the bag of books can be calculated by dividing the work done (12900 J) by the time taken (3 minutes = 180 s). So, the power required is 71.67 watts.