Geography, 11.03.2020 05:37, TylerBerk5309
You observe three different star clusters and find that the main-sequence turnoff stars in Cluster 1 have spectral type F, the main-sequence turnoff stars in Cluster 2 have spectral type A, and the main-sequence turnoff stars in Cluster 3 have spectral type G. Which star cluster is the youngest and which one is the oldest
Answers: 2
Geography, 22.06.2019 20:00, diazsindy
Brian's school locker has a three-digit combination lock that can be set using the numbers 5 to 9 (including 5 and 9), without repeating a number. the probability that the locker code begins with a prime number is %. the probability that the last digit of the locker code is an odd number is %.
Answers: 1
Geography, 25.06.2019 07:30, soma44
Select the correct answer. which of these best describes a desert climate? a. hot temperatures with large amounts of rain all year b. warm to hot temperatures all year with no wet season c. mild temperatures all year with no dry season d. hot summers and cold winters with no dry season
Answers: 1
You observe three different star clusters and find that the main-sequence turnoff stars in Cluster 1...
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