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How does the angle of an inclined plane relate to its efficiency, given the coefficient of friction between a body and the plane?

Let’s define the efficiency first. The efficiency is basically the ratio between what we want over what we pay for. So, we want to lift an object up to a height, say H. In the ideal scenario we lift that obj...
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Answered by Alexandru S. • Physics tutor
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Describe why the Mormons were disliked. (1830s)

Christians disliked the teaching of the Mormons and most people were against the view of having more than wife as being acceptable. Mormons generally cut themselves off from ordinary society, and some Mormon...
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Answered by Isla W. • History tutor
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Describe the structure of proteins

Proteins are polymers (large molecules) of amino acids joined by peptide bonds. They are formed by condensation reactions, meaning water is a by-product of their formation, and there are different levels. Pr...
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Answered by Isla W. • Biology tutor
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Please give the definition of Le Chatilier's principle. Use this to explain what would happen if you increased the temperature of an equilibrium in which the forwards reaction is exothermic.

Le Chatilier's principle states that, if a change is made to a system at equilibrium, the position of equilibrium will shift to oppose that change. If you increase the temperature of a system where the forwa...
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Answered by Sam W. • Chemistry tutor
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make y the subject of this expression p = ((x+y)/5)^1/2

To maintain the equality everything that is done to one side needs to be done also to the other. First, we square both sides to get rid of the power on the right-hand side. What we get is p^2 = (x+y)/5. Now ...
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Answered by Giorgia S. • Maths tutor
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