Naturally occurring uranium is a mixture of the isotopes. a) How old must the material of...

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Naturally occurring uranium is a mixture of the isotopes. a) How old must the material of the solar system be if one assumes that as its creation both isotopes were present in equal quantities? How do you interpret this result? The lifetime of 235 U is r=1.01510 years and it is r=4.46810 years for 238 U. b) How much of 2.510 235 U (0.72%) 238 U (99.28%) and years ago? 238 38U has decayed since the formation of the earth's crust (Q.4) Calculate the kinetic energy (in MeV) of a - particle emitted in the decay process 239 94 Pu 325U + He Naturally occurring uranium is a mixture of the isotopes. a) How old must the material of the solar system be if one assumes that as its creation both isotopes were present in equal quantities? How do you interpret this result? The lifetime of 235 U is r=1.01510 years and it is r=4.46810 years for 238 U. b) How much of 2.510 235 U (0.72%) 238 U (99.28%) and years ago? 238 38U has decayed since the formation of the earth's crust (Q.4) Calculate the kinetic energy (in MeV) of a - particle emitted in the decay process 239 94 Pu 325U + He

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