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Two satellites are in orbit around the Earth. The first is in a geostationary orbit, the second satellite at radius half that of the first. What is the (approximate) period, in hours, of the second satellite?

A geostationary satellite is one that remains above the same location on Earth. This means it has to be above the equator, and its orbit period is exactly 24 hours! The period of a circular orbit is dista...

Answered by Hubert A. • PAT tutor

7029 Views

Discuss the advantages and disadvantages of two contrasting cultures/religious groups living within a confined community.

Questions such as these are looking for the student to provide an example from their historical education and demonstrate an ability to support theories and ideas with examples. They are most commonly fou...

Answered by Alice J. • HAT tutor

2774 Views

How would you prove the 'integration by parts' rule?

This involves thinking about a well-known formula (the product rule) in a slightly different way. Looking at the product rule, for two functions u and v, (uv)' = uv' + vu'. We can rewrite this as uv' = (u...

Answered by Ethan R. • STEP tutor

1888 Views

How do I prepare for an exam you're not supposed to revise for?

Stay updated - knowing more about the world gives you more things to talk about.

Have an opinion - easier said than done! Try asking yourself WHY you think that.

Answered by Zoe C. • LNAT tutor

1761 Views

Is there a technique for answering worded questions?

Yes. See below Main conclusion: This will be a simple and definite setence, commonly at the end of the argument but not always. If the question asks you to draw the conclusion, not find i...

Answered by Patrick H. • TSA Oxford tutor

3110 Views