Particles in which state of matter are the most likely to interact with each other to cause a chemical reaction?

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

The average density of the planet uranus is 1.27 103 kg/m3. the ratio of the mass of neptune to that of uranus is 1.19. the ratio of the radius of neptune to that of uranus is 0.969. find the average density of neptune.