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A digital guide to the process of problem solving which highlights strengths and weaknesses, explains mistakes, reminds you about definitions and helps to clarify concepts. Check out our Introductory network to see it in action.

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Explanation 1

When a car accelerates why does a helium balloon move backwards?

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Circular motion 4

How fast does a pig fly?

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Oscillations 3

What is the frequency of oscillation when a mass hangs on a spring?

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Gravity 3

How far away are TV satellites?

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