Top answers

What is the de Broglie wavelength? Why do we care?

The de Broglie wavelength is an important idea in physics that shows that all matter with mass can also show wave-like properties. For example, an electron (which we usually think of as a particle) can diffr...
YE
Answered by Yorick E. • Physics tutor
4764 Views

Consider the right angled triangle with vertices labelled a, b, c. Angle A = 60°, Angle B = 90°, length ab=4cm, length ac=xcm. If cos60° = 0.5, work out the value of x.

The first thing to do in such a question is to draw out the information you have been given. Not only does this help to process the question again, so that no vital information is missed, but also makes it a...
RR
Answered by Rebecca R. • Maths tutor
5497 Views

How do I structure an essay to get top marks?

There is a simple structure that is infallible. It starts with having a general structure, Introduction, Main body (with 3 main arguments), and Conclusion.The intro and conclusion have to be pre prepared, an...
AG
Answered by Anna G. • French tutor
2022 Views

How should I approach an unseen poem in an exam, such as Thomas Hardy's 'The Voice'?

Working through unseen poetry can be a really creative and thought-provoking process. I would advise the student to take a deep breath, shut out the context of the exam hall, and read the poem through slowly...
ZK
4127 Views

Using long division, clearly showing your method, please calculate 1878 / 3

Full method using long division must be shown to reach answer of 626
IR
Answered by Isabel R. • Maths tutor
2381 Views