4) Two electrons are released from an initial separation of 2 cm apart. One is able to move and the other is not
a) What is the initial acceleration of the moving electron when it is released.
b) How fast is the electron moving after 10 seconds.

a is the answer

Explanation:University Physics Vol 2 (Chapters 21-37) (12th) edition 0321500768  (A)is the Answer A particle with charge +e is placed at rest between the charged plates in If an electron is released from rest at the upper plate, what is its acceleration? find the force on the electron and Newton's second law to find its acceleration. 1 of 4.

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards

snell's law

refractve index = sin incidence / sin refraction