If you have problems with this question, check Chapter VII.2C in the Review 14. To determine the total energy flux from the sun we measure the energy flux through 1 square meter at the distance of the Earth the temperature on the Earth's surface the size of the sun the amount of light reflected from the moon If you have problems with this question, check Chapter VII.1D in the Review 15. If you have problems with this question, check Chapter VII.2C in the Review 16. If you have problems with this question, check Chapter VII.1D in the Review 17. Hydrogen will not combine with oxygen at a low temperature.
Energy is needed to overcome electrical repulsion of hydrogen nuclei.
Electrons will not recombine at low temperatures. The force of gravity is greater at high temperatures. Speeds are less at high temperature, so there is more time for reactions between nuclei. If you have problems with this question, check Chapter VIII.1A in the Review 18. Name 2 possible ways to ionize neutral interstellar gas close to the sun.