Author Question: On the Moon, no air is present. As such, which of the following waves cannot be detected. a. ... (Read 40 times)

renzo156 · **on:** Jul 27, 2018

On the Moon, no air is present. As such, which of the following waves cannot be detected.

a. optical b. infrared
c. radio d. sound

Question 2

We know the white dwarf star Sirius B has a mass comparable to the Sun because

a. of its measured color.
b. of its measured temperature compared to Sirius A.
c. it is part of binary star system with Sirius A.