Question

which of the following can be used to determine the temperature of a star? a) the stars magnetic field b) line spectra c) blackbody spectrum d) light from sunspots question 3 (5 points) which hypothesis states that the moon originally broke away from earth during its early formation? a) capture hypothesis b) giant impact hypothesis c) accretion hypothesis

Explanation:

1. For the first question, a star can be approximated as a black - body. The spectrum of a black - body is related to its temperature. Line spectra can give information about the elements present in a star, the magnetic field is related to other stellar properties, and light from sunspots is not used to determine the general temperature of a star.
2. For the second question, the fission hypothesis (not in the options but related) posits that the moon broke away from Earth during early formation. The capture hypothesis says the moon was captured by Earth's gravity, the giant impact hypothesis involves a large - scale collision, and the accretion hypothesis is about the growth of celestial bodies from smaller particles.

Answer:

1. C. Blackbody spectrum
2. None of the above (but closest conceptually would be related to fission hypothesis which is not listed)