Calculate the maximum kinetic energy of the `beta` particle (positron) emitted in the decay of `"_11 ^ 22 Na`, given the mass of `"_11 ^22 Na -21.994437u` `"_10 ^22 Ne=21.991385u` and `m_e=0.00055u`

Calculate the energy realesed in the following reactions, given the masses to be _88^223 Ra : 223.0185u, "_82 ^209 Pb: 208.9811 , "_6 ^ 14 C: 14.00324 , "_92 ^236 U:236.0456 , "_56 ^140 Ba:139.9106 , "_36 ^94 Kr :93.9341, _6 ^ 11C:11.01143 , "_5 ^ 11 B:11.0093 . ignore neutrino energy. "_88 ^223 Ra rarr "_82 ^209 Pb + "_6 ^ 4 C

Calculate the K.E, P.E, Total energy and Binding energy of an artificial satellite of mass 2000kg orbiting at a height of 3600 km above the surface of the earth Given: G = 6.67 xx 10^-11 Nm^2//kg R= 6400 km= 6.4 xx 10^6 m M= 6 xx 10^24 kg m = 2000 kg h = 3600 km = 3.6 xx 10^6 m

Find the energy stored per unit volume of a steel wire of length 1m when it is stretched by 0.2mm. Given Y for steel = 2.1 x 10^11 N/m^2

Calculate the energy released in the fusion reaction taking place inside the Sun, 4p rarr alpha + 2e^+ + neutrinos, neglecting the energy given to the neutrinos. Mass of of alpha particle being 4.001506 u.

A substance, on analysis, gave the following percent composition: Na = 43.4%, C = 11.3 % and O = 45.3 %. Calculate the empirical formula. (At. mass Na = 23 u, C = 12 u, O = 16 u).

The plates of a parallel plate capacitor have an area of 90 cm^2 each and are separated by 2.5 mm. The capacitor is charged by connecting it to a 400 V supply, View this energy as stored in the electrostatic field between the fields, and obtain the energy per unit volume u .Hence ,arrive at a relation between u and the magnitude of electric field E between the plates . Electrostatic energy = 2.22xx 10^-6 J