<span>The star is a ball of hot gases
containing different kinds of elements at different cores. It has a very high
temperature that radiates all throughout the galaxy. The star has four
main parts; the core, photosphere, chromospheres and corona. The outer core of
a star located at the chromospheres contains mostly of hydrogen. Inside the hydrogen
is helium then carbon, oxygen, neon, magnesium silicon and the inert gas. When a
star releases energy it is due to the thermonuclear fusion of hydrogen into
helium. So the answer is fusion.</span>
Answer:the wave is an electromagnetic wave.
Explanation:
Complete Question
If a power utility were able to replace an existing 500 kV transmission line with one operating at 1 MV, it would change the amount of heat produced in the transmission line to
a four times the previous value.
b two times the previous value.
c one-fourth of the previous value.
d The amount of heat produced would remain the same.
e one-half of the previous value.
f none of these.
Answer:
Option C is the correct answer
Explanation:
When the voltage is 500kV
The power is
When the voltage is 1MV = 2 × 500kV
The power is
The ratio at which power is lost is
Here Resistance is constant
Hence the heat produced would be one fourth of the previous value
Explanation:
It is given that,
Wavelength of red light,
Power of the laser,
(a) The energy carried by each photon is given by :
(b) Let n is the number of photons emitted by the laser per second. It can be calculated as :
Hence, this is the required solution.