5.40X10^2kj converted into j

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

Which of the following statements is true about planck’s law