subject
Biology, 24.10.2019 20:43 JANA279

Ineed your pls giving brainliest to who answer correctly
17. the hertzsprung-russell diagram below shows how the sun is classified among the stars. a star that is several thousand times brighter than the sun with a temperature lower than 4,000 k would be classified as *

a main-sequence star in spectral class b
a supergiant in spectral class k
a main-sequence star in spectral class k or m
a white dwarf in spectral class b
18. two stars are identified on the hertzsprung-russell diagram. based on the diagram below, how do the characteristics of star 1 and star 2 compare? *

star 1 is cooler and less bright than star 2.
star 1 is hotter and brighter than star 2.
star 1 is cooler and brighter than star 2.
star 1 is hotter and less bright than star 2.
19. a hertzsprung-russell diagram is shown below. based on this diagram, which type of stars would belong to spectral class m and have the highest luminosity? *

white dwarfs
main-sequence stars
giants
supergiants

20. barnard’s star is about 5.9 light-years from the sun. the star has an approximate temperature of 2,800 k. based on the diagram below, what spectral class does barnard’s star belong to? *

spectral class o
spectral class b
spectral class a
spectral class m

ansver
Answers: 1

Other questions on the subject: Biology

image
Biology, 21.06.2019 13:50, elliehemms6324
Athermometer is placed in water in order to measure the water’s temperature. what would cause the liquid in the thermometer to rise?
Answers: 2
image
Biology, 21.06.2019 21:00, hayleighhurt
What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?
Answers: 3
image
Biology, 22.06.2019 00:40, abdullahs4639
World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s
Answers: 3
image
Biology, 22.06.2019 06:00, dshood6599
Adrought killed all the plants in an agricultural farmland. gradually, due to wind and some birds for. nearby areas, new plants started sprouting l. what stage of succession was taking place in the farmland? a) competition b) nudation c) ecesis d) reaction e) migration
Answers: 2
You know the right answer?
Ineed your pls giving brainliest to who answer correctly
17. the hertzsprung-russell diagram...

Questions in other subjects:

Konu
Mathematics, 30.05.2021 06:30
Konu
Geography, 30.05.2021 06:30
Konu
Mathematics, 30.05.2021 06:40
Konu
Spanish, 30.05.2021 06:40