An electron of mass 9.1 x 10\(^{-31}\) kg moves with a speed of 2.0 x 10\(^6\) ms\(^{-1}\) round the nucleus of an atom in a Circular path of radius 6.1 x 1...

Assessment: WAEC SSCE - Physics - 2019 (Objective) Subject: Physics

Question 1 Report

An electron of mass 9.1 x 10\(^{-31}\) kg moves with a speed of 2.0 x 10\(^6\) ms\(^{-1}\) round the nucleus of an atom in a Circular path of radius 6.1 x 10(^{11}\) m. Determine the angular speed of the electron.

3.28 x 10\(^{16}\) rad s\(^{-1}\)

8.55 x 10\(^{3}\) rad s\(^{-1}\)

9.11 x 10\(^{13}\) rad s\(^{-1}\)

5.22 x 10\(^{15}\) rad s\(^{-1}\)

Position, Distance And Displacement

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