What happens after a helium flash?
A) The core quickly heats up and expands.
B) The star breaks apart in a violent explosion.
C) The core suddenly contracts.
D) The core stops fusing helium.
E) The star starts to fuse helium in a shell outside the core.
A
You might also like to view...
How much time is there between when a star rises and when it sets?
A. about twelve hours B. more than twelve hours C. less than twelve hours D. It depends on the star.
Why should the youngest stars be made of the heaviest elements?
What will be an ideal response?
The average distance of the electron from the proton in the hydrogen atom is 0.65 × 10^?10 m. What is the electric field from the proton's charge at the location of the electron? (ke = 8.99 × 10^9 N/m2/C2, e = 1.6 × 10^?19 C)
a. 3.4E+11 N/C b. 5.4E+6 N/C c. 5.2E+1 N/C d. 2.2E–8 N/C e. 1.0E–8 N/C
How many neutrons are produced in the induced fission reaction 
neutrons?
A. 2 B. 0 C. 1 D. 3