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a) b) When jam is made, it is put into the jam jar and the top screwed down whilst the jam is still hot.
a) b) When jam is made, it is put into the jam jar and the top screwed down whilst the jam is still hot. The top makes an airtight seal with the jar and the air trapped above the jam cools and so the pressure of the trapped air reduces. 6 cm Trapped Air JAM
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SOLUTION a To calculate the force due to atmospheric pressure acting downwards on the top of the circular lid of the jam jar we need to use the formul...
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Project Management The Managerial Process
Authors: Eric W Larson, Clifford F. Gray
8th Edition
1260570436, 978-1260570434
