Nya has a cup of hot tea that she lets cool down for several minutes. what effect does cooling have on the tea?

its particles have less kinetic energy.
its particles have more kinetic energy.
its specific heat increases.
its specific heat decreases.

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.

How to tell if two objects are in thermal equilibrium 1.the objects have the same temperature 2.the objects are the same size 3.the objects are touching each other 4.the objects temperatures are changing

What is the relationship between the direction of motion of the balloon and the wind currents