A car moving along a straight level road has an initial speed of 3 m s-1 and its acceleration is 2 m s-2? What is the speed of the car after 5 s?

In a system, when potential energy decreases, then entropy also decreases. true false

Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final