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Throughout this extract, Bronte uses a series of techniques to present Jane as a strong female character, including a list of rhetorical questions, strong verb choices and exclamations. Bronte also presen...

In a vacuum (ie in the absence of air resistance) all things fall with exactly the same acceleration. The reason for this can be easily seen.

An object, with mass ‘m’, falling in a gravitational fi...

The Doppler effect describes the changes in a wave's frequency (or wavelength) as the source of the wave moves towards/ away from the observer (you). You have almost definitely experienced this phenomenon...

pottasium dichromate (K₂SO₄) is an example of an oxidising reagent. If added to a primary alcohol, under reflux, carboxcylic acid will form, a secondray alcohol will form a ketone an...

Tidal volume is the normal volume of air inhaled in one breath at rest.

Total vital capacity is the maximum amount of air a person can expel from the lungs after a maximum inhalation. This usually ...