A spectroscope or a spectrometer is an instrument which is used for separating the components of light into different
wavelengths. Astronomers often use spectroscopes and the resulting emission spectra to
identify elements found in distant stars.
determine how fast an object is moving.
determine relative distances in space,
D)
identity dark matter and black holes

On a supply and demand graph, equilibrium is the point where the two curves meet. the supply curve begins. the supply curve ends. the demand curve ends.

Two books are used to model tectonic plates

Read the excerpt below and answer the question. obierika was a man who thought about things. when the will of the goddess had been done, he sat down in his obi and mourned his friend’s calamity. why should a man suffer so grievously for an offense he had committed inadvertently? (p. 125) based on the context clues, the best definition for the word “calamity” in the excerpt above is disaster sadness luck indifference