The hot glowing surfaces of stars emit energy in the form of electromagnetic radiation. it is a good approximation to assume that the emissivity e is equal to 1 for these surfaces.

Plss anybody know how to do this? ? i need the answers from a through d

Ahowler monkey is the loudest land animal and, under some circumstances, can be heard up to a distance of 4.6 km. assume the acoustic output of a howler to be uniform in all directions and that the threshold of hearing is 1.0 × 10-12 w/m2. what is the acoustic power emitted by the howler

Although light from the sun appears white, it is actually made up of a lot of different colors. this portion of the electromagnetic spectrum, we call white light is referred to as within the electromagnetic spectrum.