Question

An electron moving at 0.992c collides head-on with a positron moving at 0.981c. Both speeds are...

An electron moving at 0.992c collides head-on with a positron moving at 0.981c. Both speeds are measured relative to the lab.

(a) What is the speed of the positron in the frame of the electron?

(b) How does the speed of the electron in the frame of the positron compare to your pervious answer?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1
  • velocity of the partical in frame s` be vx` is given by

(a) -- given that , vx = 0.981c , v = 0.992c

  • putting the values
  • ......................(answer)

(b) -- now for this case v = 0.992c , vx = 0.981c

  • ............(answer)
  • as from above it clear that the speed of positron in the electron`s frame is just opposite to the speed of the electron in the positron fame .
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
In a process called "positron-electron annihilation," a positron collides with an electron, and both particles are...
In a process called "positron-electron annihilation," a positron collides with an electron, and both particles are destroyed. During this process, the total mass of both particles is completely converted to energy in the form of gamma radiation. Determine the total energy given off when one positron collides with one electron resulting in annihilation. (Note: mass of positron = mass of electron = 0.000549 amu)
An electron and a positron are moving toward each other with equal speeds of 3 x...
An electron and a positron are moving toward each other with equal speeds of 3 x 106 m/s. The two particles annihilate each other and produce two photons of equal energy. (a) Do you need to use relativity for this problem? Support your answer numerically, and comment intelligently. (b) What were the deBroglie wavelengths of the electron and positron? (c) Find the energy of each photon. (d) Find the momentum of each photon. (e) Find the wavelength of each photon.
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?
In a head-on collision of an electron of kinetic energy of 2.044 MeV with a positron...
In a head-on collision of an electron of kinetic energy of 2.044 MeV with a positron at rest, the two particles are replaced by two photons of equal energy. If each photon is traveling at an angles θ with respect to the electron’s direction of motion, What is the energy E, momentum p (you can leave the answer in terms of c) and angle of θ of each photon? (For electron and positron mc2 = 0.511 MeV)
A 2.0 kg mass moving to the east at a speed of 4.0m/s collides head on...
A 2.0 kg mass moving to the east at a speed of 4.0m/s collides head on in a comletely inelastic collision with a 2.0 kg mass moving west at 2.0m/s. How much kinetic energy is lost during this collision?
A cart of mass 2.50 kg moving with a speed of 4.00 m/s collides head-on with...
A cart of mass 2.50 kg moving with a speed of 4.00 m/s collides head-on with a 1.50 kg cart at rest. If the collision is elastic, what will be the speed and direction of each cart after the collision?
A ball of mass 2.5 kg moving east with a speed of 4.2 m/sec collides head-on...
A ball of mass 2.5 kg moving east with a speed of 4.2 m/sec collides head-on with a 1 kg ball initially moving at 1.7 m/sec to the west. If the collision is elastic, what will be the speed and direction of each ball after the collision?
A 5.0 kg red ball moving to the east at 9.0 m/s collides elastically head-on with...
A 5.0 kg red ball moving to the east at 9.0 m/s collides elastically head-on with a 10.0 kg green ball moving to the west at 3.0 m/s. What are the final velocities of both balls?
A billiard ball, initially moving to the left at 15.7 cm/s, collides head on with another...
A billiard ball, initially moving to the left at 15.7 cm/s, collides head on with another ball moving to the right at 40.8 cm/s. The masses of the balls are identical. If the collision is perfectly elastic, what is the velocity of the first ball (initially moving the left) after the impact? Give your answer in cm/s.
A 5.0-kg mass moving at 8.0 m/s collides head-on with a 3.0-kg mass initially at rest...
A 5.0-kg mass moving at 8.0 m/s collides head-on with a 3.0-kg mass initially at rest If the collision is perfectly elastic, what is the speed of the masses just after the collision? Is the kinetic energy conserved?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT