A helium nucleus, called an alpha particle, has a charge of 2e and mass of 4mp, where e and mp are the charge and mass of a proton, respectiyely. Starting from rest, a proton and an alpha particle are accelerated through a constant electric field E. After a time At, which particle has travelled the furthest distance? O (a) The alpha particle O (b) They travel the same distance O (c) The proton

An evacuated tube uses an accelerating voltage of 55 kV to accelerate electrons to hit a copper plate and produce X-rays. Non-relativistically, what would be the maximum speed (in m/s) of these electrons?

MY N An electron is to be accelerated in a uniform electric field having a strength of 1.90 x 106 v/m. (a) What energy in kev is given to the electron if it is accelerated through 0.790 m? kev (b) Over what distance would it have to be accelerated to increase its energy by 50.0 GeV (as in the Stanford Linear Accelerator, which is actually smaller than this)? km Additional Materials

Calculate the speed of a proton that is accelerated from rest through an electric potential difference of 130 V.m/s? (b) Calculate the speed of an electron that is accelerated through the same potential difference.

E7P9

A +5.6 C charged particle (m=2.0 kg) is placed 42 cm from a -3.7C stationary charge. If the particle starts from rest, how fast will it moving after it has traveled 24.0 cm. What is the change in potential energy, and what is the speed of the particle?