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1) Two alpha particles (mass = 6.6 x 10^–27 kg, charge = 3.2 x 10^–19 C),...

1) Two alpha particles (mass = 6.6 x 10^–27 kg, charge = 3.2 x 10^–19 C), separated by an enormous distance, approach each other along a “head-on collision” path. Each has a speed of 3.0 x 10^6 m/s to begin with. Calculate their minimum separation, assuming no deflection from their original path.

2) An electron accelerates from rest through an electric field and into a magnetic field as shown in the diagram below. The plates have a potential difference of 85 V. What is the speed of the electron when it enters the magnetic field? See formula page for mass and charge of electron.

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