Top answers

How do we know the energy of a photon (light particle) is quantised?

Firstly, quantisation of energy means that energy can only exist for specific, discrete values, i.e. it is not continuous. Now, photons display this phenomena however it is not immediately obvious why, as in...
BM
Answered by Ben M. • Physics tutor
3474 Views

Can an author use a particular contemporary issue or a precise historical context as a means to convey a more timeless and universal matter?

Like all artists, authors are influenced by the events of their time and era. While Fitzgerald's The Great Gatsby was greatly inspired by the roaring twenties' historical context, Kipling's works captured th...
JS
4849 Views

Briefly describe the mechanism of muscle contraction.

In muscle, myosin protein has 'heads' that act as cross-bridges as they bind to actin, another protein. When ATP binds to myosin, its head detaches from actin, swings forward and rebinds. Rebinding releases ...
HG
Answered by Hester G. • Biology tutor
10440 Views

Simplify: (3x+8)/5 > 2x + 1

Multiply both sides by 5: 3x + 8 > 10 x + 5 Move 3x to RHS by subtracting 3x from both sides: 8 > 7x + 5 Move 5 to LHS by subtracting 5 from both sides: 3 > 7x Make the coefficient of x equal 1 by d...
OD
Answered by Orlaith D. • Maths tutor
4895 Views

Differentiate: 2(x^2+2)^3

This is a chain rule question. Unlike in ordinary differentiation we have more than just the single term 'x' with coefficient 1 raised to the power of something. e.g. x^3 Therefore, there is more steps. We c...
CA
Answered by Charlotte A. • Maths tutor
3709 Views