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Why is it that spectral lines emitted from stars in distant galaxies appear to be shifted towards the red end of the electromagnetic spectrum?

Spectral lines are caused by electrons within atoms being excited up energies levels by absorbing specific frequencies of light (this produces absorption lines- dark lines in an otherwise continuous spect...

Answered by Louise C. • Physics tutor

6214 Views

Choose a novel or short story in which symbolism plays an important role and discuss its impact on the reader.

Firstly, you should identify key textual evidence that you can use to answer the question. Look through key quotes from the text and find some that include symbolism or imagery. Now, you need to analyse <...

Answered by Connor W. • English Literature tutor

5399 Views

What is the difference between profit and cash flow?

Cash flow is all the money flowing in and out of a business. This is calculated at the exact time actual cash enters or leaves a business bank account or till. Profit is calcuated by calculating ALL trans...

Answered by Sarah P. • Business Studies tutor

2711 Views

What is the electron arrangement for a Co atom?

Look up Co on the periodic table. Proton number is 27. Therefore, the number of electrons is 27.

1s², 2s², 2p⁶, 3s², 3p⁶, 3d⁷, 4s

Answered by Emma P. • Chemistry tutor

2621 Views

If Incomes increase what would happen to demand for bus rides (an inferior good) in the market?

Start the question by defining what is an inferior good - An inferior good is a type of good for which demand declines as the level of income or real GDP in the economy i...

Answered by Sarah P. • Business Studies tutor

4417 Views