A science class was investigating how far a ball could be thrown. The table below shows their results. Based on the class's data, how can they improve the accuracy of the investigation? A. Do more trials B. Use a different ball C. Omit trial 4 from the data D. Average the data to account for the short distance in trial 4

How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.