One student uses a meter-stick to measure the thickness of a textbook and obtains (3.2 cm +/- 0.2 cm). Other students measure the thickness with Vernier calipers and obtain four different measurements. Which of these four measurements, if any, agree with that obtained by the first student?

Drag each item into the proper state of matter category.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Mutt and jeff are running along a path each pushing a cart loaded with rocks. if mutt's wagon has a mass two times greater than jeff's and they want to stay together, arriving at their destination at the same time, what must happen? a) jeff should slow down so mutt can catch up. b) mutt must use half as much force to push his cart. c) mutt must use twice as much force to push his cart. d) mutt and jeff will use the same force, but mutt will take bigger steps.