cameroon gce june 2019 advance level physics 2

2. Distinguish between solids and liquids in terms of the following properties.
(i) Molecular arrangements
(ii) Intermolecular forces (6 marks)
3. Two protons A and B each of mass 1.70 X 10-27 kg are separated by a distance a of 1.00 x 10-13 m.
(a) Draw a diagram showing the forces acting on the protons
(b) Calculate the ratio of the electric force to the gravitational force between the protons

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