Physics, 16.06.2020 20:57 jagmeetcheema
The first antiparticle, the positron or antielectron, was discovered in 1932. It had been predicted by Paul Dirac in 1928, though the nature of the prediction was not fully understood until the experimental discovery. Today, it is well accepted that all fundamental particles have antiparticles.
Required:
Suppose that an electron and a positron collide head-on. Both have kinetic energy of 3.58 MeV and rest energy of 0.511 MeV. They produce two photons, which by conservation of momentum must have equal energy and move in opposite directions. What is the energy Ephoton of one of these photons?
Answers: 2
Physics, 22.06.2019 08:50, schoolwannapass
You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?
Answers: 2
Physics, 22.06.2019 11:20, James17syoboda
Sound is a disturbance that travels through a medium as a
Answers: 1
Physics, 22.06.2019 21:10, truelove9288
Which radioisotope is used in dating geological formations?
Answers: 3
The first antiparticle, the positron or antielectron, was discovered in 1932. It had been predicted...
Computers and Technology, 02.09.2020 15:01
English, 02.09.2020 15:01
Mathematics, 02.09.2020 15:01
Chemistry, 02.09.2020 15:01
Chemistry, 02.09.2020 15:01
History, 02.09.2020 15:01
English, 02.09.2020 15:01
Mathematics, 02.09.2020 15:01