Atomic and Nuclear Physics Answers

7 A platinum resistance thermometer has resistance of 52.5 ohms and 9.75 ohms at 0 degrees Celsius and 100 degrees Celsius
respectively. When the resistance is 8.25 ohms, find the temperatur

Why is it that only alpha particles are emitted by radioavtive nuclei, while protons and neutron are not?

Why is it that only á- particles are emitted by radioactive nuclei, while protons and neutrons are 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

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?

in beta decay,atomic number increases by one unit,mass number decreases by one unit,what happens to electron number in the atomc orbitals?( as the electron formed is emitted)

An electron exists within a region of 10^ -10 m, find its momentum uncertainty and approximate K.E..??