What role does the mass of an object have in determining whether it will be classified as a planet or dwarf planet?

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

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.