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How do I write a good hypothesis?

Assuming that you already have a topic for the research (e.g a description of an experiement or study), the first thing to think about is what that research is trying to find out. In other words, what is the...
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Answered by Steph A. • Psychology tutor
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Explain the molecular structure of CH4 (methane)

Methane is a gas made up of 1 carbon atom for every 4 hydrogen atoms. The central carbon atom forms covalent bonds with these 4 hydrogen atoms (they share an electron each), and this sharing completes the ou...
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Answered by Asha P. • Chemistry tutor
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A tank is filled with water up to the height H0. At the bottom of the tank, there is a tap which is opened at t=0. How does the height of liquid change with time?(Hint: dH/dt is proportional to -H)

This is a typical C4 differential equation question. The same algorithm could be used for a lot of other problems. First of all, from the hint we have that dH/dt = -kH (1). We need to separate the variables ...
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Answered by Maxim B. • Maths tutor
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Décrivez vos opinions sur le réchauffement climatique. Utilisez des exemples pour soutenir vos avis.

Le réchauffement climatique est un problème qui atteint de plus en plus de monde, touchant la majorité des populations d'une manière ou d'une autre. Ce phénomène concerne particulièrement les petites iles tr...
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Answered by Faye H. • French tutor
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How far did the industrial revolution adversely affect the lives of people in Britain?

Industrialisation transformed 19 th century Britain from a predominantly agricultural to an industrialised and mechanised nation; this ‘workshop of the world’ resulted in the landscape changing with large nu...
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Answered by Nicola W. • History tutor
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