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If a stationary observer sees a ship moving relativistically (near the speed of light), will it appear contracted or enlarged? And by how much.

Einstein's theory of special relativity postulates two theories; firstly the speed of light is a universal constant, and secondly the laws of physics are the same in all inertial (non-accelerating) reference...
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Answered by Thomas H. • Physics tutor
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Solve 10(x + 2) – (2x – 9) = 30

10(x+2) -(2x-9)=30; 10x+20-2x+9=30 paying attention to the sign change when solving the brackets; 8x+29=30; 8x=1 separating in order to find out x; x=1/8
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Answered by Cristian E. • Maths tutor
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Factorise and simplify (6x-42)/((x^2)-49)

When we factorise, we are trying to put a long expression into a couple of brackets to make it neater and easier to work with. It is the opposite to multiplying out brackets. To start off with, we will facto...
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Answered by Robert S. • Maths tutor
5903 Views

outline two cultural factors that may affect ethnic differences in educational achievement

ethnic differences within the education system, can cause differences in educational achievement due to various cultural factors. One cultural factor affecting educational achievement is the lack of adequate...
Answered by • Sociology tutor
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How can ethical objectives help a business grow?

An advantage of having and maintaining ethical objectives is that the firm is able to use these objectives for marketing purposes and thus gain access to a specific market segment that is much more niche. In...
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