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Define the Nuclear Power
As an energy source, nuclear power is an alternative to fossil fuels. Controlled nuclear chain reactions are used to generate electricity in a safe manner in nuclear power plants. The fuel used in nuclear power plants consists of uranium: U-238 and U-235. U-235 undergoes fission and releases a tremendous amount of energy, triggering other atoms to split, if the uranium is concentrated in a tight ball. Control rods are made of good neutron absorbers such as boron. The control rods are lowered into the fuel to slow down the fission reaction. They absorb some of the neutrons produced by the fission reactions so that there are fewer neutrons available to start othesr reactions. This keeps the overall reaction under control.A gas or water is used as a coolant. The coolant carries heat from the reactor to a heat exchanger. The heat exchanger contains water which is heated to form steam. The steam moves a turbine which in turn drives a generator. The generator produces electricity. One major downside to using nuclear fuel to power electric generating power plants is the spent fuel that must be dealt with, since the waste products of the fission reactions are still radioactive. Much of the radioactive waste material has a half-life of thousands of years. Safe storage of these materials is of major concern, because of the possibility of leaks, and they pose a long-term environmental pollution problem.To calculate the energy produced during a nuclear fission or fusion reaction, we must first calculate the mass lost during the reaction. We then use Einstein’s famous equation of E = mc2 to calculate the energy produced during the reaction.
A certain spring is known to obey Hooke's Law. If a force of 10 newtons stretches the spring 2 meters, how far will a 30 newton force stretch the spring? Ans: A certain spr
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A simple calorimeter Small soup tins can be found which fit loosely into a 1lb. jam jar. If the top of the tin is cut off cleanly with a rotary type opener it serves as an good
Primary cell Is that cell in which electrical energy is produced because of chemical energy. In the primary cell, chemical reaction is irreversible. This cell cannot be recharged.
An unknown tuning fork is sounded along w/ a tuning fork whose frequency is 256Hz and a beat frequency of 3 Hz is heard. What i the frequency of the unknown tuning fork?
A ray of light is incident normally on an equilateral prism of refractive index 3/2 calculate devition. Ans) since the prism is equilateral therefore angle of prism is 60 0 =
OBLIQUE COLLISION
a ball is thrown horizontally from a point 100 m above the ground with a speed of 20 m/sec .find the time it takes to reach the ground...
define varigonon law
As electron hole pair (because of thermal collisions) is continuously formed in the depletion region. These are a regular flow of electrons in the direction of the N-side and of ho
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