Homework Statement
A proton is accelerated from rest through a potential difference of 107 V. Calculate the final speed of this proton.
Homework Equations
I'm not really sure which equations to use, but I figured I give all I tried...
V=-Ed
V=PE/q
PE=-qEd
and I think this...
thanks, hage, but I'm still confused how the two charges are linked, how they fit together to create that 2.4 x 10^5 charge at their midpoint. i tried the problem again, solving it as so...
EF = Kc (q/r^2)
2.4 x 10^5 = 8.99x10^9 q/.25
60000= 8.99x 10^9
q = 6.67x10^-6
q= -6.67x10^-6
i...
thanks chi,
so i believe my second set should actually look like...
E(x) = E(1) x cosx Θ(1) - E(2) cos Θ(2)
then once i plug in my values and simplify, i should get my x component any my y component, right? then i just use the pythagorean theorem to solve?
oh, and for the thetas i just...
Homework Statement
Two equal positive charges, both q = 2.0 x 10^ -6 C, interact with a third charge Q = 4.0 x 10^ -6 C, as shown above. What is the magnitude of the electric force on Q?[/B][/B]
Homework Equations
Electric force = Kc (q1/r^2)
The Attempt at a Solution
Basically...
Homework Statement
Two equal but oppositely charged points are 1.0 m apart in a vacuum. The electric field intensity at the midpoint between the charges is 2.4x10^5 N/C. What is the magnitude of each charge?
Homework Equations
Electric force= Kc (q/r^2)
Kc=8.99x10^9
The Attempt at...
I have another question that is pestering me. Runner A is 3.6 km west of a flagpole and is running w/ constant V of 2.6 km/h while Runner B is 4.0 km east of the flagpole and is running w/ constant V of 5.2 km/ hour west. What will the distance be of the two runners from the flagpole when their...
Hey. I need help on this question. A walkthrough would be great. Thanks in advance!
A speeder passes a parked police car at 38.0 m/s. The police car starts from rest with a uniform acceleration of 2.29 m/s^2.
a) How much time passes before the speeder is overtaken by policeman? b) How far...