Need help Millikan's experiment

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Understanding the mass and charge of an electron is crucial because it underpins many fundamental concepts in physics and chemistry. This knowledge is essential for fields such as electronics, where the behavior of electrons influences circuit design and functionality. Additionally, it plays a vital role in quantum mechanics and the development of atomic models. Millikan's experiment specifically measured the charge of the electron, providing foundational data for various scientific applications. Ultimately, this information is integral to advancements in technology and scientific research.
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Need help! Millikan's experiment

Hey

I got this project and it sounds like a real easy question but i can't figure it out. I researched for quite a while but the internet won't give me a straight andwer i was hoping one of u guys could help me

Here it is: Why would a man want to knwo the mass and charge of an electron?/ Show a use for this knowledge.

I have no idea were they use this infromation!

well thanks for ur help

Dutch
 
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Dutch said:
Here it is: Why would a man want to knwo the mass and charge of an electron?/ Show a use for this knowledge.
Uuhm. Because it's one of the most important particles in the universe?
 
Perhaps he knew that information would be needed on his final exam!
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
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