A car whose mass is 500 kg increase its velocity from 2 m/s to 12 m/s in 10 s. The rate of change in its momentum will be-??? please answer quick! i'll be waiting it's urgent pleasee

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 particles that are found in the nucleus of an atom are

Explain the difference in reactivity of the elements based on their electron configurations.