No. it can be zero acceleration
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The correct answer is B. Electrons flow because of electrical attraction and repulsion.
Radioactive "decay" means particles and stuff shoot OUT of a nucleus.
After that happens, there's less stuff in the nucleus than there was before.
So the new mass number is always less than the original mass number.
I believe its temperature because when something has high temperature it has more thermal energy and when something has low temperature, it has less thermal energy. Hope that helped ^-^
An educated guess is a “hypothesis”
