What two attributes does an X-ray laser combine and how are they crucial in imaging atoms in motion? Use evidence from the text to assist you in answering this question.

Does anyone know how to solve this problem? i really need . i made an attempt but i just cant get it. a metal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal.

(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?