Calculate the disintegration energy of the reactions
(a) The value is .
(b)The value is .
Disintegration energy is lost by the nucleus undergoing radioactive decay. During radioactive decay, an element loses mass and energy by emitting radiation and ionizing particles. During this process of radioactive decay. an atom is transformed into another element.
The chemical species undergoing radioactive decay is called the parent nuclide, and the new chemical species is called the daughter nuclide.
Put the value in equation (1)
Hence the value is .
Hence, the value is .
Suppose that the matter (stars, gas, dust) of a particular galaxy, of total mass , is distributed uniformly throughout a sphere of radius. A star of mass is revolving about the center of the galaxy in a circular orbit of radius .
(a) Show that the orbital speed of the star is given by
And therefore that the star’s period of revolution is
Independent of. Ignore any resistive forces.
(b) Next suppose that the galaxy’s mass is concentrated near the galactic center, within a sphere of radius less than . What expression then gives the star’s orbital period?
Question: Given figure shows the paths of two particles circling in a uniform magnetic field. The particles have the same magnitude of the charge but opposite signs. (a) Which path corresponds to the more massive particle? (b) If the magnetic field is directed into the plane of the page, is the more massive particle positively or negatively charged?
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