Question

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Answer 1

Answer:

hey here is your answer

Explanation:

charge on helium nucleus  = +2e

that is +2 * 1.6* 10^-19 C

so we got Q=3.2*10^-19 C

and we already have R=10^-3 m

k= 9*10^9

so now substitute values into the below equation

E = k * Q/ r^2

Answer 2

Explanation:

alpha particle and helium atom is same thing....