A 300n force acts on a 15kg object. The accelerated of the object is __ A. 4,500 m/s2
B.300 m/s2
C. 25 m/s2
D. 20 m/s2

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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the answer is b. dilution