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newarch

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newarch

Cryptic Queries

Can anyone please help with this? The answers are names of plants, real or fictional. 1. Printers' signs incorporated into note (7) 2. A colourful climber (6) Thanks!...
16:59 Fri 14th Dec 20121 answer, last by maurice 18:12 Fri 14th Dec 2012
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newarch

Ball hitting wall

The textbook I am working from says that v = eu, where u is the speed going on to the wall, e is the coefficient of restitution, and v is the speed coming off the wall. But there is no mention of the...
21:11 Wed 13th Feb 20086 answers, last by vascop 10:38 Mon 27th Apr 2009

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