The astronaut then measures the abundance of silicon on the new planet, obtaining the following results: isotope abundance. (%)mass. (amu). 28si73.7127.98. 29si14.9328.98. 30si11.3629.97. what is the atomic mass of silicon for this planet?
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Ответ:
Ответ:
Speed is 25 meters a second
Explanation:
150/25=6