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If a red star and a white star radiate energy at the same rate can they be the same size If not which must be the largest Why?
They cannot be the same size. The red star must be larger. Red stars are cooler that blue stars and so radiate less energy for a given amount of surface area. In order to radiate the same amount of energy as a blue star, the red star must therefore have a larger surface area.
What does a stars luminosity measure?
Luminosity is the total amount of energy emitted by a star per second.
What is a body of gas that gives off tremendous amount of radiant energy in the form of light and heat?
A star.
Do Hotter stars age more slowly then cooler stars?
The surface temperature is not a reliable indicator about how long a star will last. However, the total energy output is. If a star produces a lot of energy, it will burn through its fuel faster.
How do gravity and fusion have opposite effects on a star?
This fusion gives off energy, which expands the surface of the star. Gravity pulls the outer parts of a red giant towards the center.
If a red star and a white star radiate energy at the same rate can they be the same size If not which must be the largest Why?
They cannot be the same size. The red star must be larger. Red stars are cooler that blue stars and so radiate less energy for a given amount of surface area. In order to radiate the same amount of energy as a blue star, the red star must therefore have a larger surface area.
What is energy output from the surface of a star per second?
heat
Which dehumidifiers use the least amount of energy?
the best one would be energy star
How can astronemers infer how hot a star is?
By the amount of energy that they are giving out.
How is it that a star seldom find another star near it?
Stars repel because of the massive amount of energy they put out based on the density of the star.
What additional features do energy star appliances have in contrast with conventional appliances?
Energy star appliances have been improved so much that you can tell the energy cost for instance of the amount of hot water you save and how much money in a years time just by buying energy star.
What prevent the enormous amount of energy released from the fusion reactions at star's core from blowing the star apart?
Gravity. However, sometimes the star IS blown apart.
What does a stars luminosity measure?
Luminosity is the total amount of energy emitted by a star per second.
What affects the luminosity of stars?
There are 2 main factors: the size of the star and its surface temperature. A larger size means a larger surface area to emit light. A higher surface temperature increases the energy emitted. Seen from Earth, the brightness of a star depends on how far away the star is as well as its actual luminosity.
What source of energy powers the phenomena that occur between Earth's weather and climate?
sun is the primary energy source that drives all weather events
What star is very hot but gives off little light?
Answer: A shooting star Answer: One with a small surface, such as a white dwarf or a neutron star. These are "dead stars", in the sense that energy production has stopped.
What happens in the core of the star?
Nuclear fusion does. The nuclei (nucleuses) of 2 or more atoms join into a single nucleus, which releases a comparatively enormous amount of energy. This process is the source of the energy that a star radiates.
