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Explain the workings of a mass spectrometer

Charged particles are fired into a magnetic field (perpendicular to the motion of the particles). Using Fleming’s left hand rule, a magnetic force acts centripetally – such that the charged particles exhibit...
DS
Answered by Dan S. Physics tutor
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Describe the 'reflex arc'

The relfex arc is an innate response designed to keep us safe (this means we do not consiously think about doing it). One of the most common examples for this question is a person touching a hot flame and im...
LR
Answered by Lauren R. Biology tutor
13675 Views

What's an Ablative Absolute?

An "ablative absolute" is made up of a noun and a participle in the ablative. It's called an absolute because it's grammatically independent from the rest of the sentence. It's usually found with P...
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Answered by Calypso H. Latin tutor
16278 Views

How do I use the subjunctive?

The subjunctive is probably the trickiest part of French grammar! To simplify things, the subjunctive may be used in 3 cases: After circumstancial phrases: For example - bien que, pour que, pourvu que, avant...
JF
Answered by Jennifer F. French tutor
3406 Views

How do I improve my German essays?

Writing an essay in another language is a tricky task, but as with all essays, a detailed plan is the best way to start! Once you have a clear idea of what your essay is about, your 3 or 4 arguments and then...
JF
Answered by Jennifer F. German tutor
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