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Why Microwaves are harmful to humans while visible light is not?
a) Experimentally the study of p-p scattering is capable of much higher accuracy than n-p scattering, why?
b) What are the similarities between (nn) & (pp) forces?
The second ionization energy of alkaline earth metals is less than that of corresponding alkali metals because
a train is starting from rest picks ups a speed of 20m/sec in 200secs it continoues to move at the same speed for next 500 secs it is brought to rest in next 100 secs. plot speed time graph and calculate the uniform accelration and retardation
two charges of equal magnitudes and at a distance r exert a force F on each other.if the charges are halved and distance b/w them is doubled then new force acting on each other is:-
1.F/8
2.F/4
3.4*F
4.F/16
nucleous is +ve charge and electron is _ve charge why they donot attract
pion has average life span of 2.6times 10 to the -8 how long does the partical exist from perspective of the lab observer if pion moves past at .67c?
Explain why even though a reaction has taken place, the product element is the same as the reactant element in uranium 238 forming uranium 239
Explain why even though the reaction has taken place, the product element is the same as the reactant element in uranium 238 and the reaction forms uranium 239. Please help.
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