Thursday
March 30, 2017

Post a New Question

Posted by on .

an electron has a kinetic energy that is 1.8 times its rest energy. What is its speed, expressed as a fraction of the speed of light?

  • physics - ,

    m•c^2 = 1.8•m(o) •c^2,
    m(o) •c^2/sqrt(1- β^2) = 1.8•m(o) •c^2,
    sqrt(1- β^2) =1/1.8
    β = 0.831
    β = v/c ,
    v = 0.831c = 2.49•10^8 m/s

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question