Mental Health During the COVID-19 Pandemic

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The discussion centers on the impact of the COVID-19 pandemic on mental health, emphasizing the need for awareness and research on the topic. Participants are encouraged to explore the relationship between mental health and scientific concepts, such as the discovery of the neutrino. The conversation suggests that understanding complex scientific principles may provide insights into broader issues, including mental health. Additionally, the mention of conservation laws hints at exploring how established scientific principles can relate to mental health challenges. Overall, the thread encourages a multidisciplinary approach to understanding mental health during the pandemic.
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Homework Statement
The diagram shows the decay tracks of a neutron decaying into a proton & electron inside a cloud chamber (the arrows have been added to show the direction of travel). Explain how this diagram was used as evidence for the existence of a third particle the neutrino which has a very small mass & no electro-static charge.
Relevant Equations
I was wondering if anyone could help with this question?
Screen Shot 2022-11-26 at 12.08.28 PM.png
 
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If you have no thoughts on the subject, perhaps you can do some research on the internet and learn about the discovery of the neutrino. Then tell us what you found out and what you think.
 
What conservation laws might help?
 
Thread 'Chain falling out of a horizontal tube onto a table'

Thread 'Chain falling out of a horizontal tube onto a table'

My attempt: Initial total M.E = PE of hanging part + PE of part of chain in the tube. I've considered the table as to be at zero of PE. PE of hanging part = ##\frac{1}{2} \frac{m}{l}gh^{2}##. PE of part in the tube = ##\frac{m}{l}(l - h)gh##. Final ME = ##\frac{1}{2}\frac{m}{l}gh^{2}## + ##\frac{1}{2}\frac{m}{l}hv^{2}##. Since Initial ME = Final ME. Therefore, ##\frac{1}{2}\frac{m}{l}hv^{2}## = ##\frac{m}{l}(l-h)gh##. Solving this gives: ## v = \sqrt{2g(l-h)}##. But the answer in the book...
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