please I need help . include diagram if possible and helpful explanations please
ID: 1512245 • Letter: P
Question
please I need help . include diagram if possible and helpful explanations please. thanks
Explanation / Answer
Given:
Mass of the star, M = 4.6*1032 kg;
power, P = 5.3*1030 W;
Energy released, Q = 7.27*106 eV;
The mass of He, m = 4.002603 amu * 1.661*10-27 kg/amu = 6.6483*10-27 kg
Thus, the number of helium atoms in the star are
N = M/m = 4.6*1032 kg / 6.6483*10-27 kg = 6.92*1058
each fusion requires three helium nuclei.
Thus,
time, t = N/3 * Q/P = [6.92*1058/3]*[7.27*106 eV / 5.3*1030 W]
time, t = 5.062*1015s (or) 1.6*108years
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