Consider two points in an electric field. The potential at point 1, V1, is 36 V. The potential at point 2, V2, is 196 V. An electron at rest at point 1 is accelerated by the electric field to point 2. Part (a) Write an equation for the change of electric potential energy U of the electron in terms of the symbols given.
Part (b) Find the numerical value of the change of the electric potential energy in electron volts
Part (c) Express v2, the speed of the electron at point 2, in terms of dU, and the mass of the electron me.
Part (d) Find the numerical value of v2 in m/s.

This problem has been solved! see the answera non-uniform fire escape ladder is 6.0m long whenextended to the icy alley below. it is held at the top by africtionless pivot, and there is neglibible frictional force fromthe icy surface at the bottom. the ladder weighs 250n, and it'scenter of gravity is 2.0m along the ladder from the bottom. amother and child of total weight 750n are on the ladder 1.5m fromthe pivot. the ladder makes an angle θ with the horizontal.find the magnitude and direction ofa) the force exerted by the icy alley on the ladderb) the force exerted by the ladder on the pivotc) do your answers in part a and b depend on the angle?

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?

According to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does maria's voyage take according to samir?