Thus, astronomers can<span> identify what kinds of stuff are in </span>stars<span> from the lines they find in the </span>star's spectrum<span>. This type of study is called spectroscopy. The science of spectroscopy is quite sophisticated. ... The spectral line also </span>can tell<span> us about any magnetic field of the </span>star<span>.</span>
Which quantity causes a change in linear momentum?
Kinetic energy is energy in action and potential energy is stored energy
Example: Increasing the tension in A string causes the speed of waves on the string to increase. Since the wavelengths of the standing waves remains constant, this results in a larger frequency of oscillations in the string, which we percieve as a higher pitch when the string vibrates the air.
D it is environmental safe