How many independent variables does a good investigator use in his or her experiment?

Solar cell a produces 100 joules of energy, when a light source is shown on it for 3 minutes. solar cell b produces 200 joules of energy when the same light source is shown on it for 5 minutes. which solar cell works better? a) solar cell b, because it produces more energy. b) solar cell b, because it generates more power. c) solar cell a, because it produces energy quicker. d) solar cell a, because it generates a greater wattage. eliminate

The combining of light nuclei is called blank. blank as in not actually blank. you know what im tryin to say.

Current vs. forcewhat type of relationship does this graph show?