An electron initially 3.00 m from a nonconducting infinite sheet of uniformly distributed charge is fired toward the sheet. the electron has an initial speed of 420 m/s and travels along a line perpendicular to the sheet. when the electron has traveled 2.00 m, its velocity is instantaneously zero, and it then reverses its direction. what is the surface charge density on the sheet?

Explanation:

= Permittivity of free space =

= Distance charge traveled = 2 m

v = Velocity of electron = 420 m/s

E = Electric field

= Mass of electron =

= Charge of electron =

As the energy of the system is conserved we have

For an infinite non conducting sheet electric field is given by

The surface charge density is

good for her? ? where is the question?

weather forecasts are done by collecting data about the current state of the atmosphere mainly the temperature, humidity and wind and using meteorology, to determine the atmosphere that evolves over time. the h and l mean the high and low pressure. the red strip is a warm front. the blue strip is a cold front. the blue and red strip is a stationary front. the purple strip is a occluded front.

explanation: