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A spherical object of mass 150kg is orbiting the Earth. The distance between the centre of the object and the centre of the Earth is 25,000m. What is the kinetic energy of the object?

This is an example of circular motion caused by a centripetal force. In this case, the centripetal force is the gravitational force between the Earth and the object. Linking the equations for circular ...

RL
Answered by Ryan L. Physics tutor
2747 Views

What are the four levels of protein structure?

Primary - The sequence of amino acids in the Protein, defined by the DNA sequence coding for the protein. 

Secondary - Any folding or coiling within the protein which are stabilised by hy...

TN
Answered by Theo N. Biology tutor
5263 Views

Solve X^2 +13X+48=12

It is first important to get the equation to equal 0, so to do this you minus 12 from each side of the equals symbol, giving youX^2 +13X+36=0Now it is time to think about factorising!The best trick for th...

KM
Answered by Kemba M. Maths tutor
5733 Views

Help, I have designers block!

We all get to the point where we have been drawing or working on a project for so long that we feel completely uninspired.Its often a good idea to take a break at this point, if you're really stressed and...

KM
1584 Views

How should I approach my GCSE maths paper?

The way that papers are set is that you usually can allow just over a minute for each mark. This means if a question is 6 marks, it should take about 6 minutes to answer. It is generally a good idea to be...

KM
Answered by Kemba M. Maths tutor
5782 Views

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