What is the acceleration of an object that speeds up from 3m/s to 8m/s in 10 seconds?

Which statement best explains why an object weight less on mercury than it does on earth

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.

The substances that are necessary for producing of certain hormones and that store and transport vitamins