Solve Physics: Get Help With Homework Charge Transfer

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To solve the problem of determining the length of tape needed to transfer 3.4e13 electrons, one must first understand the charge per centimeter, which is 0.26e-6C. The discussion emphasizes the importance of making an effort to solve the problem before seeking help, as well as the need for clear and specific titles when posting questions. It suggests consulting a textbook for foundational knowledge, as relying solely on memory is insufficient. Participants are encouraged to follow forum guidelines for effective assistance. Overall, a proactive approach and clarity in communication are essential for receiving help with homework.
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i need help with homework!

here's the problem: a piece of tape pulled from the dispenser has 0.26e-6C of charge per centimeter, what length of tape must be pulled to transfer 3.4e13 electrons to the remaining tape?
i took physicsI 2 years ago, and i don't remember anything! help!
 
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Please post your homework questions in the Homework & Coursework subforum. And please read the guidelines for posting in that forum. We can't help with homework unless we first see some effort from you.

Secondly, "I don't remember anything" is not a great excuse for not being able to attempt a homework problem. You don't have to remember much if you've got a textbook nearby.
 
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Not to be mean, but it is much easier for a person who is going to help you if you give a better title. Tons of people come here everyday and say "HELP!" Or "Plz help mez with my homeworkr!"
 
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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