a container of volume 0.35 m^3 contains 8.3 mol of argon gas at 39*C. Assuming argon behaves like an ideal gas, find the total internal energy of this gas

Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?

Aspectroscope breaks light up into its colors, allowing scientists to analyze light from the solar system and universe. by studying the spectral line patterns, widths, strengths and positions, scientists can determine the speed, position, and of celestial bodies. a) age b) origin c) rotation d) temperature

Would it be correct to say the doppler effect is the apparent change in the speed of a wave due to the motion of the source? be sure to fully explain your position using at least 3 complete content related sentences.