Which of the following statements about the planets is not true?

a. mercury has a greater eccentricity than venus
b. uranus has the smallest mass of the outer planets.
c. neptune has the shortest rotation period of any planet.
d. earth is the most dense planet.

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

Which of the following is an example of motion in two dimensions?

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