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A wave could be transverse or longitudinal. We like to think in terms of whole waves. This is when a particle comes back to it's original position and direction of movement. For transverse waves, we can s...

To answer this question we need to know what makes glass different to air. The main difference is their refractive index. For air it's 1 and for glass it's anywhere between 1.52 - 1.54 depending on the t...

f(x) = 7xe^xUsing the product rule: [f'(x)=u*(dv/dx)+ v*(du/dx)]Let u=7x and v=e^xTherefore, du/dx=7 and dv/dx=e^xHence, f'(x) = 7xe^x + 7e^x

any 2 for 1 mark each:a) Caelum - Latin definition : sky - English derivative: celestial, climateb) sequor, sequi, secutus sum - Latin definition: follow - English derivative: sequence, consecutive, cons...

Normally, there would be more context for a question like this; for instance, you may have been given a murder case to read beforehand which would likely provoke some questions about the meaning of intent...