Which of the following statements about the stages of nuclear burning in a massive star is not true?
A) Each successive stage creates an element with a higher atomic weight.
B) As each stage ends, the core shrinks further.
C) Each successive stage of fusion requires higher temperatures than the previous stages.
D) Each successive stage lasts for approximately as long as the first, hydrogen fusion stage.
Question 2
The cosmic microwave background peaks at a wavelength of about 1 mm, and the universe has a temperature of about 3 K.
If the microwave background peaked at a wavelength of 10 micrometers, what would its temperature be? (Hint: see Cosmic Calculations 5.1 and 17.1)
A) about 0.3 K B) about 300 K C) about 30 K D) about 0.03 K
Stages in the establishment of a cell culture.
Super's Five Stages of Career Development
Stages of General Anesthesia
France has produced most of its energy from nuclear power since the oil crisis of the 1970s
Typical pattern of the stages of labour for first births and subsequent births
Stages of mitosis - Anaphase