1. Electrons are accelerated in the picture tube of a television through a potential difference of 8.00 x 10ºV. (Use the values qe=1.60 x 10-19 C and
me=9.109 x 10-31 kg.)

a. What is the change in the potential energy of each electron traveling in
this tube?

b. What is the change in the kinetic energy of the electrons?

c. At what speed do the electrons hit the screen?

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .

the answer is c. the lower legs are levers, and the knees are fulcrums. the ankles hold the loads.