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How do radians work? Why can't we just keep working with degrees in school?

Degrees are a made up unit; mathematicians simply decided that a complete revolution of a circle has 360 degrees, without that number actually meaning anything. Tecnically any number could have been picked t...
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Answered by Hans D. • Maths tutor
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What is a Sankey diagram and how do we use it?

A Sankey Diagram can be used to represent the energy usage and efficiency of anything. There are 3 main parts of Sankey diagram, the start (left side), the arrow heads that peel off facing upwards or downwar...
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Answered by Alex W. • Physics tutor
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Assess utilitarianism. (25 Marks).

Assess utilitarianism for a board can be a very open question. You aren't subject to specific forms of the theory, though it can be helpful to assess at least two. Recognising a problem for one in an essay s...
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Answered by Jack S. • Philosophy tutor
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Describe the process of extracellular digestion

Extracellular digestion is a process in which an organism feeds by secreting enzymes through its cell membrane and on to the food. These enzymes then catalyse the breakdown and the digestion of the food. Onc...
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Answered by Stuart N. • Biology tutor
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how does aveoli allow for a more efficient gas exchange in mammals?

avoli are small chambers that branvh off from the bronchioles in the lungs, and is where gas exchange directly occurs. these have quite an ireegular shape and contain many fold in its structure, this allows ...
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Answered by Cristina S. • Biology tutor
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