Power plants can be powered by fossil fuels, such as coal or natural gas, or nuclear power to produce steam to turn turbines to
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Almost all telescopes have a circular mirror. The area of a circle is proportional to 
where 
is the radius of the circle, the constant of proportionality being 
Therefore the area of 150 meter telescope would be
times bigger than the area of the smaller (10 meter) telescope.
Therefore the area of 150 meter telescope would be
times bigger than the area of the smaller (10 meter) telescope.
Answer:
486nm
Explanation:
in order for an electron to transit from one level to another, the wavelength emitted is given by Rydberg Equation which states that
Hence the photon must possess a wavelength of 486nm in order to send the electron to the n=4 state
Answer:
Height of tree = 78.35 meters.
Explanation:
We have
1 meter = 3.28 feet
That is
Here height of tree = 257 ft
Height of tree = 257 x 0.3048 = 78.35 m
Height of tree = 78.35 meters.