Question

Two particles (one an electron and one a positron (same mass as an electron, same charge...

Two particles (one an electron and one a positron (same mass as an electron, same charge except positive) start out 2 mm apart and are headed away from each other. They are each traveling at 2000 m/s. How far apart do they get?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The initial kinetic energy of the system will be equal to the final potential energy minus the initial potential energy. Or, framing it differently, the final potential energy will be the sum of the initial kinetic energy and initial potential energy.

The initial kinetic energy

The initial potential energy

At infinity, the potential energy will be zero. We can see that since the sum of the initial kinetic energy and initial potential energy is greater than zero, they will move infinitely far apart.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1) An electron and a positron are located 17 m away from each other and held...
1) An electron and a positron are located 17 m away from each other and held fixed by some mechanism. The positron has the same mass and the same magnitude of charge as those of the electron, but its charge is positive. The electron and the positron are released at the same time by the mechanism. The electron and the positron begin to speed up towards each other. What velocities should they have when they are 1.3 m away from...
A positron and an electron are placed in free space 1 meter away from each other....
A positron and an electron are placed in free space 1 meter away from each other. The positron has the same mass as the electron, which is 9.11 × 10−31kg, and has the same magnitude of charge as that of the electron, which is 1.6 × 10−19 C. The electron has negative charge and the positron has positive charge. The electron and the positron are released from rest and begin to move towards each other. They will both have the...
A positron and an electron are placed in free space 1 meter away from each other....
A positron and an electron are placed in free space 1 meter away from each other. The positron has the same mass as the electron, which is 9.11 × 10−31kg, and has the same magnitude of charge as that of the electron, which is 1.6 × 10−19 C. The electron has negative charge and the positron has positive charge. The electron and the positron are released from rest and begin to move towards each other. They will both have the...
A positron is an elementary particle identical to an electron except that its charge is +e....
A positron is an elementary particle identical to an electron except that its charge is +e. An electron and a positron can rotate about their center of mass as if they were a dumbbell connected by a massless rod. a) What is the orbital frequency in rev/s for an electron and a positron 1.60 nm apart?
2. A positron is the anti-particle of an electron. It has exactly the same mass as...
2. A positron is the anti-particle of an electron. It has exactly the same mass as an electron but the opposite electric charge. Prove, using conservation of energy and momentum that it is impossible for an electron and positron to be formed from the "decay" of a single (high-energy) photon. (Note: this process can occur in the presence of other particles).
A positron is an elementary particle identical to an electron except that its charge is +e+e....
A positron is an elementary particle identical to an electron except that its charge is +e+e. An electron and a positron can rotate about their center of mass as if they were a dumbbell connected by a massless rod. Part A What is the orbital frequency in rev/srev/s for an electron and a positron 1.10 nmnm apart?
An electron and positron (anti-electron) has rest energy 0.5 MeV. The two electron and positron traveling...
An electron and positron (anti-electron) has rest energy 0.5 MeV. The two electron and positron traveling in opposite direction at a speed of 0.99999*ccollide to form a new particle with a huge mass in the lab. A) What is the total energy of the two particles?   B) What is their Kinetic energy at that speed? C) What is the momentum of the two particles? D) What is the rest mass of the new particle discovered?
Two particles, one with charge −2.93×10−6 C and the other with charge 4.39×10−6 C , are...
Two particles, one with charge −2.93×10−6 C and the other with charge 4.39×10−6 C , are 0.0209 m apart. What is the magnitude of the force that one particle exerts on the other? magnitude of force: Two new particles with identical positive charge q3 are placed the same 0.0209 m apart. The force between them is measured to be the same as that between the original particles. What is q3 ?
Two particles, one with charge −2.09×10−6 C and the other with charge 1.87×10−6 C, are 0.0434...
Two particles, one with charge −2.09×10−6 C and the other with charge 1.87×10−6 C, are 0.0434 m apart. What is the magnitude of the force that one particle exerts on the other? Two new particles with identical positive charge ?3q3 are placed the same 0.0434 m0.0434 m apart. The force between them is measured to be the same as that between the original particles. What is ?3q3 ?
Two particles which have the same magnitude charge but opposite sign are held r = 7...
Two particles which have the same magnitude charge but opposite sign are held r = 7 nm apart. Particle I is then released while Particle II is held steady; the released particle has a mass of 8.72 × 10-23 kg. Particle I's speed is 110 km/s when it is 0.74r away from Particle II. 1. What is the magnitude of the charge on one of the particles? 2. If the particles are still initially held 7 nm apart but both...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT