Apaper placed in between two books can be quickly pulled out without moving the books. which statement explains this phenomenon a.) there are no forces acting between the books and the paper. b.) the pull of gravity on the book is greater than the force of gravity on the paper. c.) the two books exert force only on each other and not on the paper. d.) the books have a great deal of inertia and do not move easily.

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.