An alpha particle (αα), which is the same as a helium-4 nucleus, is momentarily at rest in a region of space occupied by an electric field. The particle then begins to move. Find the speed of the alpha particle after it has moved through a potential difference of −3.45×10−3 VV .
The charge and the mass of an alpha particle are qαqα = 3.20×10−19 CC and mαmα = 6.68×10−27 kgkg , respectively.Identify the system involving the alpha particle. Then examine the forces acting within this system to determine whether mechanical energy is conserved. Make certain to draw a before-and-after visual overview and to define your symbols.
Part A
Mechanical energy is conserved in the presence of which of the following types of forces?
Select all that apply.
frictionalmagneticgravitationalelectrostatic