An atom of helium has a radius of and the average orbital speed of the electrons in it is about Calculate the least possible uncertainty in a measurement of the speed of an electron in an atom of helium. Write your answer as a percentage of the average speed, and round it to significant digits.

728282828282828

Explanation:

99wq82828288283838383

sorry :(

Criteria for the implementation of drinking water:

where drinking water comes from and its qualitytechnical interventionhygiene education for communityregulations, laws and managementsroutine water sampling and analysis

Limitations:

availability of resources (human, finance, equipment)geographical conditionsclimatological conditionscommunity and authority and transport infrastructure

Explanation:

For more information:

https://www.who.int/water_sanitation_health/dwq/gdwqvol32ed.pdf?ua=1https://www3.epa.gov/region1/eco/drinkwater/your_drinkwater_source.html