Helium in the amount of moles 4 expands in the process 1-2. The temperature of helium in state 1 is and in state 2 it is 400 K. How much heat is delivered to helium in the process 1-2? The universal gas constant is 8.31 J/(mol. K).

A2-kg bowling ball is 2.5 meters off the ground on a post when it falls. just before it reaches the ground, it is traveling 7 m/s. assuming that there is no air resistance, which statement is true?

4. now look at the green lines you created by connecting the three boiling point data points and the three melting point data points. for each of these lines, describe any trends you see. 5. locate the elements on your periodic table that you circled in green on your graph. what term or description would you use to identify these elements with respect to the periodic table? 7. using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers.

The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?