Particles A (of mass m and charge Q) and B (of mass m and charge 5 Q) are released from rest with the distance between them equal to 0.4939 m. If Q= 31 uC, what is the kinetic energy of particle B at the instant when the particles are 2.4939 m apart? Answer in units of J.
I know that the...
electrical potential help..urgent!
1) A parallel-plate capacitor is made of two flat metal plates pressed against a thin slab of dielectric material. The capacitor is connected to a power supply, and a potential difference of 100 V is applied to the plates. With the power supply disconnected...
I have no idea what principles i am supposed to use in this question? Could someone show me how to do this question please? Thanks :smile:
Calculate the electrical potential energy of two protons separated by 1 nm, and compare it with their gravitational potential energy. Estimate how heavy...
1. Through what potential difference would an electron need to be accelerated for it to achieve a speed of 50.0% of the speed of light, starting from rest? The speed of light is c = 3.00 108 m/s.
>> I'm really not too sure what to do with this problem. I took .50*3.00e8 and got 1.50e8...
I need help on these ?'s. They are very confusing to me. Can someone please help me.
-Here they are:
>Two charges are located along the x-axis. ONe has a charge of 6.4 micro C, and the second has a charge of -3.2 micro C. If the electrical potential energy associated with the pair of...
point a is at a potentiall of +290...point b is at potential of -220...helium nucleus contains 2 neutrons and 2 protons...neutrons are electrically neutral...what kinetic energy does particle have after accelerating from rest at point a to b...in electron volts
My question is how is electrical potential actually transmitted through an electric circuit.
A charge (i.e. and electron) is moved through an magnetic field (as in a generator), the particle gains electric potential due to the work performed on it in the generator. This potential is then used...
The potential is constant throughout a given region of space. Which of the following statements is true? Be sure you can justify your answer.
The electric field may have places where it is zero, and places where it is nonzero in this region.
The electric field is nonzero in this region...
In Feynmann's Lectures on Physics, many of you will have come across the chapter on electrostatic energy. I wonder if someone could explain to me why we have the factor 1/2 in the equation:
U = \frac{1}{2} \int \rho \phi dV
where \rho is the charge density of one distribution of...
Hello,
I've been trying and trying to do this problem for quite a while now, and I can't seem to get an answer which agrees with the book.
I figured that one metal sphere would then end up with a charge of 10^13 electrons (so I multiplied that by 1.60x10^-19 to get the charge of all the...
Electrical potential is constant everyplace on the surface of a charged conductor.
Also, on the surface of an irregularly-shaped conductor, the charge density is high in convex regions with small radius of curvature (especially, for example, at sharp points), and low in regions of large...