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What is dimensional analysis and how is it used?

When one is faced with a problem requiring derivation of an equation, they might be asked to use dimensional analysis . This is a concept that involves analyzing the units of known quantities (usually it is ...
CI
Answered by Christina I. • Physics tutor
2978 Views

What is ATP and why do we need it?

ATP is short for adenosine triphosphate, and it can be thought of as the energy 'currency' in our cells. It has a similar structure to that of an RNA nucleotide, as it is comprised of a nitrogenous base (ade...
TD
17714 Views

How come x^2 = 25 has 2 solutions but x=root(25) only has one? Aren't they the same thing?

(This is something that I didnt fully understand for quite a while at school.) So when we are solving x 2 =25, in order to get x "on it's own" we square root both sides. However the definition of r...
DJ
Answered by Dylan J. • Maths tutor
9216 Views

What is you opinion when it comes to what people think about global warming? Answer in Spanish.

El cambio climático es algo muy importante. Es de vital importancia que los tratemos como tal, ya que de no ser así, podríamos sufrir fatales consecuencias. No todo el mundo piensa que el cambio climático es...
CR
Answered by Christian R. • Spanish tutor
1930 Views

Write an algebraic expression to show the area of a square with side length x+4

x 2 + 8x + 16
AB
Answered by Anna B. • Maths tutor
5879 Views