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We are given a right angled triangle with one side of unknown length. The shortest side is 3cm long, and the longest side is 5cm long. Calculate the remaining side.

This is a classic question testing your understanding of Pythagoras' Theorem. This is an equation which shows us the relationship between the 3 sides of a right angled triangle : a 2 + b 2 = c 2 . a and b ar...
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Answered by Sean M. • Maths tutor
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Using newtons laws explain how a falling object can reach terminal velocity (6)

So we need to break this down into two parts, what are Newtons laws and what is terminal velocity? In this case we will only need the first two of Newtons laws. Number one " An object will remain at res...
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Answered by Robert S. • Physics tutor
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Discuss 'deviation from social norms' as a definition of abnormality

Deviation from social norms refers to deviation from unstated rules about how one ought to behave: anything that violates these rules must then be consider abnormal. In society there are standards of accepta...
Answered by • Psychology tutor
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Solve the simultaneous equations 5x + y = 21 and x- 3y = 9

There are different ways to approach solving a simultaneous equation question. For this one I recommend using substitution for this one where you insert one equation into the other. First take the equation x...
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Answered by George B. • Maths tutor
3531 Views

How do I draw a dot and cross diagram for a molecule with a double bond

You draw them as you would a dot and cross diagram for a single bond except with two dots and two crosses in the region where the two circles overlap. These highlight the fact there are two bonds.(Can draw a...
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Answered by Emma H. • Chemistry tutor
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