Top answers

Express 160 as a product of its prime factors

Divide 160 by 2 as many times as you can to get 80x2, 40x2x2, 20x2x2x2, 10x2x2x2x2, 5x2x2x2x2x2. Then re-write your answer so that it is 5x2^5. If you're struggling to divide by 2 and keep track of how many ...
RK
Answered by Rachel K. • Maths tutor
42330 Views

What is resistivity?

Resistivity is the measure of a materials resistance per unit area
TP
Answered by Tudor P. • Physics tutor
3281 Views

When do I use tu, when do I use vous?

First of all, you need to ask yourself the question: am I addressing one person, or more than one? If the answer is more then one, simple! You ALWAYS use vous because this is the plural form. If the answer i...
MB
Answered by Martha B. • French tutor
2607 Views

What is the difference between aerobic and non-aerobic respiration?

Aerobic respiration requires oxygen from the air, whereas anaerobic respiration does not. Aerobic produces Carbon dioxide and water, and the carbon dioxide exits through a gas exchange system in humans. Anae...
HW
Answered by Hannah W. • Biology tutor
6459 Views

How can I best prepare for an oxbridge chemistry interview?

They will be looking for a very good knowledge of the a level course and the ability to take a-level concepts a bit further. A good way to test this is to use the Cambridge lower sixth chemistry challenge pa...
AM
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