Globular clusters have been estimated to be about __________ years old. A. 100 million B. 11 million C. 11 billion D. 2 billion
Globular clusters have been estimated to be about 11 BILLION years old.
Question
Updated 2/25/2014 9:42:22 PM
Rating
3
Globular clusters have been estimated to be about 11 BILLION years old.

Questions asked by the same visitor
When using a 24-hour clock, any number below 12:00 stands for morning hours. Numbers greater than 12:00 stand for afternoon and evening times. A. true B. false
Question
Updated 2/24/2014 4:21:47 PM
When using a 24-hour clock, any number below 12:00 stands for morning hours. Numbers greater than 12:00 stand for afternoon and evening times.
True.
The 24-hour time is 14:00. Find the equivalent 12-hour time. Show all work.
Question
Updated 2/24/2014 4:49:25 PM
2:00PM is the equivalent 12 hour time.
13:00 - 1:00PM
14:00 - 2:00 PM
To find average monthly income, multiply the net pay by the number of pay periods per year. Then divide this yearly income by 12 months. A. true B. false
Question
Updated 6/25/2014 9:26:16 AM
TRUE. To find average monthly income, multiply the net pay by the number of pay periods per year. Then divide this yearly income by 12 months.
Stars in the instability strip are obviously unstable. They pulsate because of a layer of partially ionized __________ in the star’s atmosphere. A. carbon B. nitrogen C. hydrogen D. helium
Question
Updated 2/25/2014 9:31:22 PM
Stars in the instability strip are obviously unstable. They pulsate because of a layer of partially ionized HELIUM in the star’s atmosphere.
The ___________ is the time it takes a star to complete a cycle from bright to dim to bright again. A. period-luminosity relation B. period of pulsation C. luminosity D. apparent magnitude
Question
Updated 78 days ago|9/22/2018 3:51:18 PM
The period of pulsation is the time it takes a star to complete a cycle from bright to dim to bright again.
Added 78 days ago|9/22/2018 3:51:18 PM
Confirmed by yumdrea [9/22/2018 8:23:35 PM], yumdrea [9/22/2018 8:23:39 PM]
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