Shelly wants the angle of the roof of her dog's house to be 28 degrees. if the peak of the roof needs to rise 2 feet above the level of the walls, how long does the roof panel (one of the roof's slanted sides) need to be? estimate your answer to two decimal places.

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?