The decay of the neutron is associated with a quark transformation in which a down quark is converted to an up by the weak interaction . The average lifetime of 10.3 min/0.693 = 14.9 minutes is surprisingly long for a particle decay that yields 1.29 MeV of energy.
The Stella Cherry Tree is a small self pollinating tree which produces an abundance of heart shaped, shiny, black red fruit with red flesh. It can live up to 35 years on a compact 15 foot tree.
Life Span. The Virginia Big Tree Program has compiled a list of common trees of the Americas and their life spans. The Balsam Poplar lives an average of 100 years and can live up to 150 years. The Yellow Poplar has a much longer life span at 250 years on average, and a maximum of 450 years.The Hybrid Poplar will only reach 30 to 50 years of age, a relatively short life span. It is primarily used for timber and harvested between six and 12 years old.hey can reach 20 feet high in just three years with a full mature height of 70 feet tall. The growth rate relation to life span shows promise in the case of the hybrid poplar, a rapid grower with a short life span.