Water is unique in that it exists in all three states on Earth. Which statement best describes what happens to the energy of the particles when water vapor begins to cool? A. The average potential energy decreases. B. The average kinetic energy decreases. C. The average potential energy remains the same. D. The average kinetic energy remains the same.

The car hoist allows the car to be driven onto the platform, after which the rear wheels are raised. if the loading from both rear wheels is 1380 lb, determine the force in the hydraulic cylinder ab. neglect the weight of the platform itself. member bcd is a right-angle bell crank pinned to the ramp at c. the force is positive if in tension, negative if in compression.

During takeoff, the sound intensity level of a jet engine is 170db at a distance of 34 m. what's the sound intensity level at a distance of 1.0 km?

What is the major limitation to the light microscope?