Question about radioactive decay

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The discussion focuses on understanding radioactive decay and its relation to conservation laws, particularly momentum conservation. Participants emphasize the importance of posting an attempt at solving the problem to adhere to forum rules. They suggest that writing the appropriate equations related to momentum conservation is essential for progress. Additionally, they encourage considering other conservation laws that may apply to the scenario. Engaging with the problem actively is crucial for receiving effective help.
cpspolly
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OP warned about not providing an attempt at a solution.
Homework Statement
Please help with these questions, really don't know how to do it:)
thanks a lot
Relevant Equations
maybe related to conservation of momentum
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cpspolly said:
Homework Statement:: Please help with these questions, really don't know how to do it:)
thanks a lot
Relevant Equations:: maybe related to conservation of momentum

View attachment 299171
Per forum rules, you must post an attempt. Urgency is not an excuse, and failure to post an attempt straight away is only going to slow things down.
Yes, momentum conservation will be a good start, so write the appropriate equation. Any other conservation laws that might apply?
 
If have close pipe system with water inside pressurized at P1= 200 000Pa absolute, density 1000kg/m3, wider pipe diameter=2cm, contraction pipe diameter=1.49cm, that is contraction area ratio A1/A2=1.8 a) If water is stationary(pump OFF) and if I drill a hole anywhere at pipe, water will leak out, because pressure(200kPa) inside is higher than atmospheric pressure (101 325Pa). b)If I turn on pump and water start flowing with with v1=10m/s in A1 wider section, from Bernoulli equation I...

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