What are the approximate spectral classes of stars with the following characteristics?
balmer...
What are the approximate spectral classes of stars with the following characteristics?
balmer lines of hydrogen are very strong; some lines of ionized metals are present.
the strongest lines are those of ionized helium.
lines of ionized calcium are the strongest in the spectrum; hydrogen lines show only moderate strength; lines of neutral and metals are present.
the strongest lines are those of neutral metals and bands of titanium oxide.
Answers: 1
Another question on Physics
Physics, 22.06.2019 02:00
In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong
Answers: 1
Physics, 22.06.2019 11:00
A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?
Answers: 3
Physics, 22.06.2019 14:30
70 give a real life example showing how sensory neurons work with the motor neurons
Answers: 2
Physics, 22.06.2019 15:00
Sodium chloride, nacl, is formed when a sodium atom transfers its electron to a chlorine atom. the difference in charge between the two atoms creates a(n) attraction that bonds them together.
Answers: 1
You know the right answer?
Questions
Advanced Placement (AP), 23.09.2019 08:50
Computers and Technology, 23.09.2019 08:50
Biology, 23.09.2019 08:50
Mathematics, 23.09.2019 08:50
Mathematics, 23.09.2019 08:50
Business, 23.09.2019 08:50
Business, 23.09.2019 08:50
Chemistry, 23.09.2019 08:50
Mathematics, 23.09.2019 08:50
Mathematics, 23.09.2019 08:50
