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List 5 features of an animal cell and the function they have within the cell

Nucleusoften referred to as 'brain' of the cellStores the DNA/genetic materialControls cellular processes within the cellMitochondriaOften referred to as the 'powerhouse' of the cellGenerates energy for t...

Answered by Adelaide E. • Biology tutor

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To what extent was the victory of the Bolsheviks in the Russian Civil War due to Trotsky's leadership?

The victory of the Bolsheviks in the Russian Civil War of 1918 can be largely attributed to the good leadership of the Bolshevik Commissar for War, Trotsky. Other factors certainly came into play, such as...

Answered by India C. • History tutor

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Solve the simultaneous equations 2x + y = 7 and 3x - y = 8

There are three methods for solving simultaneous equations: elimination, substitution and by using graphs.Elimination is a good method in this case as the y terms are equal in both equations. We just add ...

Answered by Tia J. • Maths tutor

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Show that a mass on a spring obeys simple harmonic motion.

Let the mass be m. Let the natural length of the spring be L. The defining equation of simple harmonic motion (SHM) is that the acceleration is proportional to, and acts in the opposite ...

Answered by Tia J. • Physics tutor

6636 Views

Prove the change of base formula for logarithms. That is, prove that log_a (x) = log_b (x) / log_b (a).

Firstly, recall the definition of a logarithm: if y = log_a(x), then this means that y is the power you have to raise a to, to get x, that is a^y = x.Now, we want to introduce a new ba...

Answered by Tom H. • Maths tutor

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