Hi everybody. My physics final is right around the corner and i was just wondering if there was any good way to help prepare and study. Physics isn't the easiet subjects for me, i tend to over think problems and get myself all nervous. Please let me know if there are any problem solving...
Ah okay. That makes sense. Thank you <b>So</b> much! One last thing. Why would the other charge be negative? i know that a single electron can either be postive or negative, but i don't understand why, because obviously in this case it the electron would have to be -1.6x10^-6 for it to be...
The charge of a single electron is 1.60x10^-19. I put that in the given of the problem. And it 6.0x10^13. So i would think you would have mutiply 6.0x10^13 electrons and the charge of a single electron and then divide by the sphere. But that still gives me the wrong answer. It gives me...
if you divide 10^6/6.0x10^13 you get 1.67x10^<b>-8 </b>. It seems like this is so simple. I must be overlooking something. it means I'm still off my a little bit
Homework Statement
A metal sphere has a charge of +8.0 mirco coulomb. What is the net charge after 6.0x10^13 electrons have been placed on it.
Homework Equations
N=q/e or Coulombs Law F= k q1q2/r^2 e=1.6x10^-19
The Attempt at a Solution
Okay.well i know a mirco coulomb is...
Hi all,
I just had to do an experiment with ticker tape. Its a very common experiment dealing with displacement, velocity and acceleration. I have to graph each verse time. I figured out displacement would be a parabolic graph, but i don't understand why. Can someone please explain that for...
but wait a second, how can amps not be present without voltage? I understand that amps is the amount of electricty and volts is the force of electricty. But how come you can't have one without the other?
In that scene, one technician says "So how much power do we have to deal with" and the other technician says "Barely enough to run this coffee pot for 9 hours".
The spacecraft had to use less than 20amps of power to use for re-entry. Do you mean that a coffee pot can't run off of 20amps...
Apollo 13 and "bad" physics
Hey everyone. I'm new to this site becasue i thought you guys might be able to help me out with something.
For a report, i am to find two "good" uses of physics and two "bad" uses of physics in apollo 13 and to explain why they are good or bad uses, using...