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the moon takes 27.3 days (2.36x10^6s) to orbit the earth . Calculate its distance from the earth . Take the mass of the earth to be 5.975x10^24kg.

Use the set formula T²=(4Pi^2/GM)R^3 and rearrange for r^3 to give
r³= T²GM/ 4Pi²
then insert values : r³ = (2.36x10⁶)²

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How does Shakespeare use setting in the play Hamlet?

To answer an essay question such as this you would need to come up with around 3 or 4 separate examples. You may want to start with the opening scene - the castle cloaked in the darkness of midnight which...

Answered by • English tutor

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How do you know if a function is odd or even?

For this I would use the whiteboard to draw an even function (i.e cos(x)) and show that if f(x) is even then f(x) = f(-x). I would also show that the function would be symmetrical about the y axis. For an...

Answered by • Maths tutor

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Describe the process of DNA replication

DNA replicates via semi-conservative replication. This means one strand acts as the template strand. The enzyme DNA Helicase breaks the hydrogen bonds b...

Answered by Joanna D. • Biology tutor

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What is the inverse of a function and how do you find it?

A function, f(x), is something that takes various input values of x, and for each one, generates an output value, e.g. if f(x) = x² then when x=3, f(x) = f(3) = (3)² = 9, which...

Answered by Jack M. • Maths tutor

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