Physics, 16.12.2019 23:31 pecanpielover04
From laboratory measurements, we know that a particular spectral line formed by hydrogen appears at a wavelength of 486.1 nanometers (nm). the spectrum of a particular star shows the same hydrogen line appearing at a wavelength of 485.9 nm. what can we conclude? from laboratory measurements, we know that a particular spectral line formed by hydrogen appears at a wavelength of 486.1 nanometers (nm). the spectrum of a particular star shows the same hydrogen line appearing at a wavelength of 485.9 nm. what can we conclude?
a. the star is getting hotter.
b. the "star" actually is a planet.
c. the star is moving away from us.
d. the star is moving toward us.
e. the star is getting colder.
Answers: 2
Physics, 22.06.2019 07:00, dsperez201938
We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?
Answers: 1
Physics, 22.06.2019 23:00, gabrieljerron
Determine the force the sun exerts on an object with a mass of 80.0 kg if that object is on the earth. what is the force exerted by the moon on the same object? what is the force the earth exerts on it?
Answers: 1
From laboratory measurements, we know that a particular spectral line formed by hydrogen appears at...
Social Studies, 02.12.2021 20:50
History, 02.12.2021 20:50
Computers and Technology, 02.12.2021 20:50
Mathematics, 02.12.2021 20:50
Mathematics, 02.12.2021 20:50
Arts, 02.12.2021 20:50