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Find the stationary point of the graph of y = 2x + 5 + 27x^(-2)

y = 2x + 5 + 27x -2 To find a stationary point, find the gradient function by differentiating with respect to x:y' = 2 -54x -3 To find a stationary point, let the gradient function equal zero:2- 54x -3 = 02 ...
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Answered by Henry H. • Maths tutor
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Find an expression for the escape velocity of a test object.

Escape velocity is the velocity required to just escape the gravitational pull of a body. The gravitational force of a body is given by Newtons Law: F = GMm / r 2 (where G is the gravitational constant, M is...
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Answered by Ciara N. • Physics tutor
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Name and explain briefly the main stages of mass spectroscopy.

Mass spectroscopy is a highly sensitive method of analysing samples of elements and determining the isotopes present and their relative amounts. We can break down the method into four major steps: (in order)...
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Answered by Esther W. • Chemistry tutor
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How do I get balance in my essay while still having a definitive conclusion?

Having a definitive, consistently-argued view is one of the most important features of a good history essay. However, a good essay will also consider other perspectives. Rather than viewing the task of balan...
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Answered by Saskia W. • History tutor
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Give 2 adaptions of the alveoli that maximise gas exchange

Curved surfaces, providing a large surface areaThin, providing a short diffusion distance
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Answered by Michael H. • Biology tutor
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