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How does fractional distillation work?

Fractional distillation works by using the fact that molecules of different sizes have different boiling points. Generally, the smaller a molecule, the lower its boiling point. When heating up a mixture o...

Answered by David S. • Chemistry tutor

32885 Views

What is the total energy of a spaceship of mass m, orbiting a planet of mass M in a circular orbit with radius r? The ship and the planet are taken to be an isolated system.

In the non-inertial frame of reference of the spaceship, a centrifugal and a gravitational force acts on the spaceship. If its mass is m and the positive direction is radially outwards, we have:

F...

Answered by Ivan D. • Physics tutor

2440 Views

What is the difference between civil and criminal law?

The main difference between them is: the criminal law deals with wrongs committed against the state, whereas civil law deals with disputes between private individuals (or companies etc). This affects the ...

Answered by Nathan D. • Law tutor

4332 Views

Was Eddie responsible for the tragedy that unfolds in 'A View from the Bridge'?

Set up an essay plan (important to review how to structure an essay and the PEEL format). It can be helpful to create two mind maps at first, one for ideas as to how he is not responsible and an...

Answered by Sophie C. • English tutor

1750 Views