a. Why is it difficult to hold an inflated plastic ball underwater? b. A submarine floats at
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a. Why is it difficult to hold an inflated plastic ball underwater?
b. A submarine floats at rest under the water. To rise to the surface compressed air is used to push water out of its ‘ballast’ tanks into the sea. Why does this cause the submarine to rise?
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The sum of all interior angles of a regular polygon is calculated by the formula Sn2 1...View the full answer
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Related Book For
Cambridge International AS And A Level Physics Coursebook
ISBN: 9781108859035
3rd Edition
Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside
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