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Rutherford had a sheet of gold foil just a few atoms thick, and surrounded it with detectors. He then fired alpha particles at the gold sheet, knowing that these were positively charged. Some of these ...

In my experience, an effective way to assimilate the theoretical learning is to actually speak and not be afraid of making mistakes! By talking to your peers in Spanish and listening to them, you will ...

Be mindful of the language you use. Simple, short sentences will help make your essay clearer. Also, it is important to structure the essay effectively. Each argument should be developed in a single pa...

The first law is that an object will remain at a constant velocity or stationary (which is just a constant velocity of zero) unless acted upon by an external force.

Once acted upon by thi...

Economics is all about models involving assumptions and diagrams. So whenever you're answering a question, you must identify the assumptions relating to it, draw a diagram illustrating your argument an...