Social Studies, 03.03.2020 19:43 arnold2619
Careful measurements reveal that a star maintains a steady apparent brightness at most times, except that at precise intervals of 73 hours the star becomes dimmer for about 2 hours. The most likely explanation is that:.1. The star is cepheid variable.2. The star is a member of binary eclipsing star system.3. The star is peridically ejecting gas into space every 73 hours.4. The star is a white dwarf.
Answers: 1
Social Studies, 21.06.2019 20:30, lovwhydontwe
Which type of market produces the highest level of output at the lowest price to consumers?
Answers: 1
Social Studies, 22.06.2019 14:40, lakiyalundy57
Which is relatively better: a score of 76 on a psychology test or a score of 22 on an economics test? scores on the psychology test have a mean of 90 and a standard deviation of 13. scores on the economics test have a mean of 52 and a standard deviation of 10.
Answers: 1
Careful measurements reveal that a star maintains a steady apparent brightness at most times, except...
Mathematics, 21.07.2019 12:30
Mathematics, 21.07.2019 12:30
Mathematics, 21.07.2019 12:30
Mathematics, 21.07.2019 12:30