Answer:Spectroscopy helps astronomers to determine the composition, temperature, density, and motion of an object.
Infrared spectroscopy helps to identify the atoms and molecules in the object.
The red shift or blue shift (Doppler Effect) in a spectral line tells how fast the object is receding from Earth or coming toward it.
The Doppler shift enables astronomers to discover extrasolar planets.
As a planet orbits its star, the star is alternately moving away from or toward us.
Astronomers can use the Doppler shifts to calculate the speed of the star and the mass of the planet that is tugging on it.
Explanation:
This is a true statement. An electron closer to the nucleus would be difficult to remove because the electronegativity of the atom would be greater.
The ocean absorbs most of the excess heat from greenhouse gas emissions, leading to rising ocean temperatures. Increasing ocean temperatures affect marine species and ecosystems. Rising temperatures cause coral bleaching and the loss of breeding grounds for marine fishes and mammals.
Bulk (cubic centimeter/g) = Thickness (mm)* 1000/ Basis Weight (g/m2). Sheet bulk relates to many other sheet properties. Decrease ...
Printing Paper: 6 -7
Office/Business Paper: 4 -4.5
Newsprint: 7.5 - 9.5
Marketing Wood Pulp: 10
I’d say conical shape- coniferous trees are known for this shape.
