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Because velocity is a vector and therefore has both magnitude and direction. Thus as the lorry is changing direction whilst travelling around the roundabout its velocity is also changing (velocity = displace...

Superimposition is when two transverse waves come together, and their frequencies cancel each other out. If the waves are completely superimposed, the resultant wave is 0.

2,8,8,1

Ok I see why you are asking yourself this since right now you are only expressing certain formulae in a different way. Let me first talk about something else before giving you this answer. When you were in y...

There are various stakeholders which directly influence a business, firstly an example of this would be employees, if a businesses employees aren't working to an appropriate level then the production of the ...