The range of diameters and luminosities displayed by elliptical galaxies is 3000 to 700,000 light years and Mv-23 down to Mv- -16 mag respectively
<h3>What are elliptical galaxies?</h3>
Elliptical galaxies are type of galaxies with a smooth ellipsoidal shape.
They are the most abundant galaxies in the universe.
Their diameter ranges from 3, 000 to 700, 000 light years.
Their luminosity ranges from Mv-23 down to Mv- -16 mag
Therefore, the range of diameters and luminosities displayed by elliptical galaxies is 3000 to 700,000 light years and Mv-23 down to Mv- -16 mag respectively.
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Answer:
Ultraviolet light has a shorter wavelength than infrared light.
Explanation:
Electromagnetic waves are waves that does nor require material medium for their propagation. Example of Electromagnetic waves are classified according to the acronym RIVUXG. They decrease in wavelength and increase in frequency from Radiowaves to Gamma ray.
R is the Radio waves
U - ultraviolet ray
V - Visible light (ROYGBIV){Red, Orange, Yellow, Green, Blue, Indigo and Violet}
Note that the visible light also decrease in wavelength from red to indigo, therefore red will have longer wavelength compare to blue light.
I - Infrared rays
X - X ray
G - Gamma ray
Based on the above conclusion, it can be inferred that Ultraviolet light has a shorter wavelength than infrared light since Infrared rays comes before the infrared light in the electromagnetic spectrum.
The correct answer is D. The movement of the molecules will gradually increase.
Explanation:
At the beginning of the model the state of matter of the water is solid, in this, particles have a defined arrangement and are together, which stops particles from moving freely and only allows them to vibrate. However, as the substance is heated the thermal energy (heat) increases in the sample, this causes particles to move more and the arrangement of it changes. Due to this, when the ice melts and there is liquid water particles move more than in solid states, which makes ice lacks a defined shape. Moreover, as the heat continues to increase the thermal and kinetic energy (movement) increases, indeed in gas state (water vapor) particles will move freely. This means the movement or kinetic energy in particles gradually increases in the model.
