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After the main sequence period, the amount of hydrogen in the stars core decreases causing the star to fuse helium nuclei instead. (Further explanation for clarification)This releases a lot of energy caus...
Advantage- No CO2 emissions produced by nuclear power stations as they do not combust fuel to produce energy.Disadvantage- Nuclear power stations produce radioactive waste which is difficult and expensive...
The relative speed of the second car, with respect to the first car is 6 m/s. This is because they are both travelling in the same direction, but the second car is moving 6 m/s faster. That means, if we w...
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v = f x lambdatherefore lamba = v/ff=1/Tf = 1/0.2 = 5Hzlambda = 20/5 = 4m
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