Answer:
Explanation:
a )
charge on nucleus of 234Th = 1.6 x 10⁻¹⁹ x 90 ( atomic number of Th is 90 )
charge on 4 He = 1.6 x 10⁻¹⁹ x 2 ( in Helium , no of proton is 2 )
force of repulsion between them
= 9 x 10⁹ x 1.6 x 10⁻¹⁹ x 90 x 1.6 x 10⁻¹⁹ x 2 / ( 9 x 10⁻¹⁵ )²
= 51.2 x 10
= 512 N .
b )
mass of 4 He
= 4 x 1.67 x 10⁻²⁷ kg
= 6.68 x 10⁻²⁷ kg
Acceleration
= Force / mass
= 512 / (6.68 x 10⁻²⁷)
= 76.64 x 10²⁷ m / s² .
