Suppose we observe a cepheid variable in a distant galaxy. The cepheid brightens and dims with a regular period of about 10 days
. What can we learn from this observation?.
1 answer:
Answer:
something is passing infront of it
Explanation:
something is orbiting it and blocking its light
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Explanation:
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Melting: as mantle material rise toward the divergent plate boundary the pressure is reduced which causes melting
Answer:
4.2 is the answer
Explanation
The image formed in a plane mirror is an equal distance behind the mirror as the object in front of it.
Step 1: the equation to this problem would be: 8.4/2
Step 2: 8.4 ÷ 2 = 4.2
Answer:
180
60 minutes in a hour
60x3 is 180minutes
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