Asilver wire 2.6 mm in diameter transfers a charge of 420 c in 80 min. silver contains 5.8 x 10- free electrons per cubic meter. (a) what is the current in the wire? (b) what is the magnitude of the drift velocity of the electrons in the wire?

a). 87.5 mA or A

b). 1.78

Explanation:

n the number of free electrons is 28 in text reference and if they don't give q is take as the charge of electron.

a).

A

b).

radiation

explanation:

heat is transmitted by radiation

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 .