Ineed an answer the area of a rectangle is greater than or equal to 90 square centimeters. the width is 9 centimeters and the length is x centimeters. select the possible value(s) of x. choices: x=8 x=9 x=10 x=11 there can be more than one answer.

Awavelength of 610 nm was found to be the most intense wavelength emitted by copper. answer the following questions about this wavelength of light. a) what is this wavelength in cm? b) what is the frequency that corresponds to this wavelength? c) what is the energy of light of this wavelength? d) what is the wavenumber corresponding to this wavelength?