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What is the difference between the subjunctive and the optative moods in classical greek verbs?

The subjunctive mood is used to express a hypothetical situation, something that is not real (e.g. a possibility or an action that has not yet happened). The optative mood is used to express wishes and hopes...
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What is gravitational potential and how can gravitational potential energy be used to estimate the escape velocity of a planet of mass m and radius r?

The graviational potential at a point in space is the work done to move a unit mass from infinite (very far away) to the point in question. The gravitational potential V at a point outside a single spherical...
Answered by • Physics tutor
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How to sructure an essay?

First of all, you need to remember about 3 paragraphs that your essay needs to be made of. These are: WSTĘP (introduction), ROZWINIĘCIE (main part), and ZAKOŃCZENIE (conclusion). In the first part your job i...
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Answered by Aleksandra C. • Polish tutor
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How do I compare two sources?

There are lots of different things to consider when looking at sources: first you want to read through them, and look at the authorship and date, as that will give you some clues as to any differences you sp...
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Answered by Beatrice B. • History tutor
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How do I prepare for an in-class ERQ, knowing the topic but not the way the question is phrased?

In order to practice writing ERQs for the exam, it is common that you will be asked to write one in class where you are given the topic beforehand, but not the command term in the question (ex. "evaluat...
Answered by • Psychology tutor
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