True, RR Lyrae stars pulsate, but with shorter periods and lower luminosities than Cepheids.
The pulsation periods of the fundamental-mode RR Lyrae stars range from about 0.3 to 1.0 days (Population II pulsators with longer periods are categorized as type II Cepheids), but the vast majority of them have generations longer than 0.45 days.
<h3>Why do RR Lyrae stars pulsate?</h3>
RR Lyrae stars pulse like Cepheid variables, but the nature and histories of these stars is thought to be rather different. Like all variables on the Cepheid fluctuation strip, pulsations are caused by the κ-mechanism, when the ambiguity of ionised helium varies with its temperature.
To learn more about RR Lyrae, refer
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Answer:
A) Electronic notebooks store images, videos, notes, and voice recordings in one area, while electronic flash cards are study tools with information written on both sides.
Explanation:
Just took the test
Edge 2020
Answer:
64 K bytes = 65536 bytes
32 M bytes = 33554432 bytes
Explanation:
The question expect the number of bytes in binary instead of decimal. So this is important to understand that:
- 1K bytes = 1024 bytes (in binary)
Therefore,
- 64 Kb = 64 x 1024 = 65536 bytes
Using the similar calculation logic, we know
- 1M bytes = 1024 x 1024 = 1048576 bytes (in binary)
Therefore,
- 32 M bytes = 32 x 1048576 = 33554432 bytes
The answer is d it is d it is d I think I think, I’m not sure though
