manywonders
09.10.2020 •
Physics
Molecules in a substance speed up when the substance is
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Ответ:
Hotter.
Explanation:
When heat is added to a substance, the molecules and atoms vibrate faster.
Ответ:
26280
Explanation:
In current time, good telescope can measure redshift to a galaxy in 10 minutes.
Thus, in one year that has on an average 365 days, the total time taken to measure redshifts is = ( 365 *12 *60) minute
= 262800 minutes .
Hence, the number of redshifts observed in a year = (262800/10) = 26280