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To answer this question, we need to know the relative number of atoms of each element present. This can be calculated by dividing the amount of an element present in the sample by the relative masses of t...

Unfortunately, there is no real translation for the 吧 in Mandarin. It is used at the end of the sentence to emphasize exclamation. It can be used after a verb to express an order. It is usually used verba...

There are four main non-specific defence systems, all of which are immediate and the same for all pathogens (hence 'non-specific).1) skin: it acts as a primary defence mechanism as the dry, dead cells on ...

The tense known as "passé composé" uses the verbs "être" and "avoir" in their conjugated form and another verb in order to form the past tense of that verb. This tense shows ...

A parachutist jumps out of a plane at height h. She is subject to air resis- tance with a force of −αv2. The equation of her motion is given bymdv/dt =mg−αv^2 What are the units of α?Calculate the termina...