____ is the thermonuclear fusion of hydrogen to form helium operating in the cores of massive stars on the main sequence

a. The CNO cycle
b. The proton-proton chain
c. Hydrostatic equilibrium
d. The neutrino process
e. none of the above


A

Physics & Space Science

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Answer the following statement true (T) or false (F)

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(a) How fast is it moving when it reaches a height of 13.0m? (b) How much time is required to reach this height?

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A) tens B) hundreds C) thousands D) millions E) billions

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